Bulletins
| Bulletin | Bulletin date | Replacement Bulletin | Item no. | Summary | Added |
|---|---|---|---|---|---|
| ENGINE AND ENGINE COOLING | |||||
| 3614 | 3614A | 10018577 | P0300 due to random misfires not felt - possible accessory pulley. *tt | 01/06/2006 | |
| 050601026 | 09/01/2005 | 10017818 | Information on use of bolt extractor tool kit part number en-47702 for removing broken cylinder head or main bearing cap bolts on inline truck engines. *tt | 12/02/2005 | |
| 050604060 | 09/01/2005 | 10017826 | Powertrain control module (pcm), engine control module (ecm), transmission control module (tcm) diagnostic trouble code(s) (dtc)(s) p0601, p0602, p0603, p0604, p1621 shared in multiple modules. *tt | 12/02/2005 | |
| 050604055 | 09/01/2005 | 10017822 | Service engine soon (ses) light on, diagnostic trouble code(s) (dtc) p0442 small evaporative emissions (evap) leak and/or p0455 large evap leak. *tt | 12/02/2005 | |
| 3045 | 3045E | 10013516 | Shudder or bind on truns in 4 hi. *eh updated 03-01-07. *kb | 04/20/2005 | |
| 3221C | 3221D | 10011666 | Service engine soon light due to a p0171 diagnostic trouble code. *eh 3221a not yet received. *tt update. *tt | 01/27/2005 | |
| ENGINE AND ENGINE COOLING - ENGINE | |||||
| SB-07-06-04-019A | 11/01/2008 | 10028831 | General motors: intermittent mil/ses/ dtc p2138 with reduced engine power (repair instrument panel (ip) to body harness connector). 2005-08 gm passengers cars/light duty trucks (incl. saturns). *pe | 06/01/2009 | |
| 070604019 | 06/01/2007 | 10022702 | Intermittent mil/ses, dtc p2138 with reduced engine power (repair instrument panel (ip) to body harness connector). 2005-2008 gm passenger cars and light duty trucks including saturn. *nj | 09/21/2007 | |
| 070604003 | 01/01/2007 | 10021121 | Lsj, l61, lk5, l52, ll8 engine - reduced engine power, mil/ses light, dtc p1516, p2135, p2138. *kb | 03/07/2007 | |
| 050604035 | 08/01/2007 | 050604035C | 10019884 | Usage of e85 fuels in gm vehicles. 1997 - 2008 all gm cars and trucks. 1997 - 2008 all saturn vehicles. *tt updated. *kb updated on 10/22/07. *nj | 05/08/2006 |
| 3694 | 10019455 | A rough idle / running concern may be encountered with a p0014 and / or p0017 dtc. *tt | 03/15/2006 | ||
| 3694A | 10019427 | Rough idle with dtc p0014 and/or p0017 - inspect cam actuator solenoid screens and crankshaft end play. *tt | 03/14/2006 | ||
| 3485 | 10017121 | Engine miss on acceleration after shifting from drive to reverse-possible characteristic. *sc | 10/25/2005 | ||
| 3486 | 10017103 | Service engine soon (ses) light due to p0455 - inspect fuel fill pipe housing position. *tt | 10/24/2005 | ||
| 3449 | 10017101 | Tech 2 does not support cam phaser control - temporary solution. *tt | 10/24/2005 | ||
| 030604030 | 03/01/2007 | 030604030C | 10002166 | Multiple driveability symptoms of long or hard starts, chuggle, rough idle and light or intermittent misfire due to clogged fuel injectors. *tt | 08/14/2003 |
| 020604015 | 03/01/2006 | 020604015A | 631266 | Intermittent no crank, no start condition for 2001-2002 passenger cars and trucks. *slc 2001-2007 gm passenger cars and light-duty trucks (including saturn). *tt | 05/21/2002 |
| ENGINE AND ENGINE COOLING - ENGINE - GASOLINE - BELTS AND ASSOCIATED PULLEYS | |||||
| 3338A | 3338D | 10017089 | Drive belt noise - adjust or replace idler pulley bracket. *tt potential alignment and belt issues. *tt | 10/24/2005 | |
| ENGINE AND ENGINE COOLING - EXHAUST SYSTEM - EMISSION CONTROL | |||||
| 000604033 | 09/01/2005 | 000604033A | 10017832 | I/m readiness as part of emission inspection and maintenance program for obd ii vehicles. *tt | 12/02/2005 |
Consumer Complaints
| Fail date | miles | occurences | Purchase date |
|---|---|---|---|
| ENGINE | |||
| 12/26/2012 | 79998 | 1 | |
| The check engine light went on and off. the vehicle was taken to a mechanic who diagnostic as cylinder #1 misfire. compression test failed due to cylinder leakage. the main problem was to at the time of manufacturing the engine soft metals were used with the heads. i was told i need to replace cylinder head and related parts. contacted gm hummer division informed them of my problem with my 3.5l, 5 cylinder engine and ask them for assistance since they did a special extended warranty for the 2006 colorado and canyons with the same engine problems. they refused to help. *tr | |||
| 12/26/2012 | 79998 | ||
| The check engine light went on and off. the vehicle was taken to a mechanic who diagnostic as cylinder #1 misfire. compression test failed due to cylinder leakage. the main problem was to at the time of manufacturing the engine soft metals were used with the heads. i was told i need to replace cylinder head and related parts. contacted gm hummer division informed them of my problem with my 3.5l, 5 cylinder engine and ask them for assistance since they did a special extended warranty for the 2006 colorado and canyons with the same engine problems. they refused to help. | |||
| 07/01/2012 | 103000 | ||
| Tl-the contact owns a 2006 hummer h3. the contact stated that while driving approximately 65 mph, the vehicle suddenly stalled. the check engine light illuminated on the instrument panel during the failure. the vehicle was taken to the dealer for a diagnostic test. the technician stated that the engine | |||
| 07/01/2012 | 103000 | ||
| Tl- the contact owns a 2006 hummer h3. while driving approximately 65 mph the vehicle suddenly stalled. the check engine light illuminated on the instrument panel. the vehicle was taken to the dealer for diagnostic. the technician stated the engines cylinder head would have to be replaced. the vehicle was not repaired. the approximate failure mileage was 103,000. da | |||
| 05/17/2012 | 65934 | ||
| Tl- the contact owns a 2006 hummer h3. the contact was traveling 50 mph when the smell of coolant emitted inside of the vehicle and white smoke was visible from under the hood. the check engine warning light illuminated intermittently with the failure. the contact confirmed that the engine was over heating. the vehicle was taken to a private mechanic who confirmed that the radiator needed to be replaced. the manufacturer was contacted. the vehicle was not repaired. the failure mileage was 65,934 and the current mileage was 65,936. kmj | |||
| 03/01/2012 | 70000 | ||
| Tl* the contact owns a 2006 hummer h3. the contact stated that the instrument panel displayed a warning message that read | |||
| 05/17/2012 | 65934 | ||
| Tl- the contact owns a 2006 hummer h3. the contact was traveling 50 mph when the smell of coolant emitted inside of the vehicle and white smoke was visible from underneath the hood. the check engine warning light illuminated intermittently with the failure. the contact confirmed the engine was over heating. the vehicle was taken to a private mechanic. the mechanic confirmed the radiator needed to be replaced. the manufacturer was contacted. the vehicle was not repaired. the failure mileage was 65,934 and the current mileage was 65,936. rds | |||
| 03/01/2012 | 70000 | ||
| Tl* the contact owns a 2006 hummer h3. the contact stated that the instrument panel displayed a warning message that read | |||
| ENGINE AND ENGINE COOLING | |||
| 04/24/2012 | |||
| Engine light came on during emission testing, which caused the vehicle to fail. just had the thermostat and evaporator valve replaced the week before. the emissions department stated that it was a code p0300, misfire in cylinder 1. i took the vehicle for diagnostics and after a coil test and compression test (failed), they stated that is was a cylinder valve leakage. they also stated that there was a bulletin out on 2006 h3 for this issue. when i contacted gm customer service, i was told that the vehicle's vin was not a part of this bulletin and that the mileage was past the warranty. the only thing they could suggest to me is to take it to a gm certified repair facility and i would have to pay for the complete repair myself. | |||
| 04/02/2012 | 63000 | ||
| The check engine light goes off and on intermittently. the vehicle was taken to a mechanic who performed a diagnostic that located the failure at the engine head cylinder. the vehicle was not repaired. the manufacturer was contacted and denied assistance with the repair because the vehicle warranty was expired. the mechanic stated it was due to an inferior soft metal used to manufacture the heads which caused a loss of combustion when the engine was idling. the blowback at idle was what was causing the engine light to illuminate. mechanic also stated this problem was a recurring problem in this 5cyl engine which is the same engine that is in the colorado pickups and is covered under a gm recall in the pickups but not the hummer. the mechanic stated that the issue will only get worst. please help as i was given a price to repair of approx. $4000 if i was going to pay for the repairs myself at the dealership. | |||
| 03/15/2012 | |||
| Defective cylinder head from gmc - they know about this problem but won't assist with cost to repair, my h3 at 50,000 miles now has cracked cylinder head for no apparent reason and of course since my warranty is no longer in effect i have no recourse. is there nothing that can be done about this? | |||
| 08/23/2011 | 104000 | ||
| Tl- the contact owns a 2006 hummer h3. while driving approximately 40 mph, the vehicle became hesitant while accelerating uphill. the vehicle was taken to the dealer for diagnostics. the technician stated that the head gasket needed to be replaced. the vehicle was not repaired. the approximate failure mileage was 104,000. kmj | |||
| 08/23/2011 | 104000 | ||
| Tl- the contact owns a 2006 hummer h3. while driving at approximately 40 mph when the vehicle became hesitant while accelerating up a hill. the vehicle was taken to the dealer for diagnostics. the technician stated the engines head gasket had to be replaced. the vehicle was not repaired. the approximate failure mileage was 104,000. ds | |||
| 02/01/2011 | 69000 | ||
| Tl-the contact owns a 2006 hummer h3. the contact stated the engine light remained illuminated and the engine makes a loud noise while the accelerator pedal was depressed. the vehicle was taken to the dealer who performed a diagnosed that located the failure at the engine head cylinder. the vehicle has not been repaired. the manufacturer took a report 71-958250284 and denied assistance with the repair because the vehicle warranty expired. the failure mileage was 69,000 and the current mileage was 71,000. li | |||
| 04/21/2011 | 65000 | ||
| Loss of power, was able to drive to the local gm dealer.mechanic stated it was due to a valve seat coming loose in the head.mechanic also stated this problem was a recurring problem in this 5cyl engine.the same engine that is in the colorado pickups and is covered under warranty in the pickups but not the hummer. | |||
| 05/06/2011 | 80000 | ||
| Tl*the contact owns a 2006 hummer h3. the contact stated the engine coolant was leaking front the front of the engine. the contact examined the vehicle but was not sure if the leak was coming from the head gasket or engine block. the vehicle was not taken to have the failure diagnosed or repaired. the failure and current mileages were 80,000. | |||
| 05/06/2011 | 80000 | ||
| Tl- the contact owns a 2006 hummer h3. the contact stated the coolant had started leaking front the front of the engine. the contact is not sure if it is coming from the head gasket or the engine block. the vehicle had not been inspected at the time of the complaint. the failure mileage and current mileages were 80,000.rl | |||
| 02/15/2011 | 33700 | ||
| Tl* the contact owns a 2006 hummer h3. the contact stated that when the vehicle was set in first gear and parked on an incline, the vehicle abnormally roll backward. the contact spoke with the dealer and they advised using the emergency parking brake because the engine would not have sufficient compression to hold the vehicle. the contact stated that the failure should be explained in the owners manual so that the failure would not occur. the failure and current mileage was 33,700. | |||
| 02/15/2011 | 33700 | ||
| Tl-the contact owns a 2006 hummer h3. the contact stated when the vehicle is set in first gear and parked on an incline the vehicle rolled backwards. the contact spoke with the dealer and they advised to use the park brake because the engine does not have enough compression to hold the vehicle. the contact stated that it needs to explained in the owners manual so the failure would not occurre. failure and current miles 33700. bl | |||
| 02/11/2011 | 64586 | ||
| While driving received check engine code for #5 cylinder misfire. took it straight into the local gm dealer who informed me the head was already replaced at 16k miles and now another head is needed. gm is not willing to cover any cost as the 2006 does not have a power train warranty included. so contacted hummer customer care line and still waiting on word what will be done. | |||
| 02/02/2011 | 69500 | ||
| 2006 h3 hummer cutting off when idleing,was dianosed with same head valve seat problem as recalled colorado atlas engine,same engine the h3 engine shuld be covered | |||
| 03/09/2010 | 62000 | ||
| Tl-the contact owns a 2006 hummer h3. the contact was driving approximately 40 mph, approaching a traffic signal. while coming from the complete stop the engine began to exhibit a low power response. the vehicle was taken to an authorized dealer where a diagnostic test was performed. the technician was unable to detect a trouble code and informed that the problem was a manufacturer design which was a common issue. the vehicle was taken to two different independent mechanics for diagnosis. the vehicle was not repaired. the failure mileage was approximately 62,000. js | |||
| 02/02/2011 | 69500 | ||
| 2006 h3 hummer cutting off when idleing,was dianosed with same head valve seat problem as recalled colorado atlas engine,same engine the h3 engine shuld be covered | |||
| 03/09/2010 | 62000 | ||
| Tl-the contact owns a 2006 hummer h3. the contact was driving approximately 40 mph, approaching a traffic signal. while coming from the complete stop the engine began to exhibit a low power response. the vehicle was taken to an authorized dealer where a diagnostic test was performed. the technician was unable to detect a trouble code and informed that the problem was a manufacturer design which was a common issue. the vehicle was taken to two different independent mechanics for diagnosis. the vehicle was not repaired. the failure mileage was approximately 62,000. js | |||
| 01/01/2009 | 54492 | ||
| Tl*the contact owns a 2006 hummer h3. he stated that the check engine light illuminated on the instrument panel. the vehicle was taken to the dealer where a diagnostic test was performed producing codes p0300 pertaining to a misfire at idle due to a leaking intake valve. he also stated that the vehicle needed a new cylinder. there were no recalls and the manufacturer would not assume any liability for the failures. the warranty was no longer valid. no repairs were made to date. the current and failure mileages were under 54,492. | |||
| 04/07/2009 | 61870 | 1 | |
| I recently purchased a 2006 h3. from the day i bought the car i have noticed a weird idle when the vehicle is warming up. until recently i thought it was the way the vehicle ran normally. i decided to have the vehicle inspected by a mechanic. after being inspected the mechanic noticed the vehicle's valves were not seeded right from the factory, which has caused the misfire, which causes the weird idle. i now am in the process of contacting hummer to see if there is a solution to the problem. the vehicle has only 61870 miles on it and i don't feel this should have happened this soon in the vehicles life. service bulletins have been warranted and i would like to find a reasonable solution to the problem. *tr | |||
| 02/04/2009 | 15100 | 1 | |
| I have a 2006 hummer h3 with a little over 15,000 miles on it. there is an issue of bad cylinder heads in these 3.5l i5 engines and gm has not stepped up to the plate for a recall. another cylinder head has been ordered for my vehicle and will be fixed under warranty. what happens when my warranty runs out a year from now. i am not crazy about a dealer tearing down my engine at this point. it has not been broken in yet. i think the whole engine should be replaced. i feel gm knew of this all along and built these suv's anyway with the hopes that the motors will last until the warranty has expired. *tr | |||
| 08/23/2008 | 14916 | 1 | |
| Purchased a 2006 hummer h3 from the seller in this complaint. i paid exactly $23,250 all cash for this vehicle. he actually drove the vehicle to new jersey from mass. to my residence. the vehicle appeared to be in excellent condition, as it only had 14k miles when i bought it only 3-month's ago. one would hardly think of hidden issues at that mileage. in any event, i have had repairs to the rear and front differential, as it had a leak and the front end was out of alignment. the most disturbing thing was this seller lied to me and misrepresented the true or actual condition of the vehicle. unfortunately which would surface after he left with my $23,250 in cash! i would e-mail the seller and told him he misrepresented himself and the condition of the vehicle and how he apparently abused it. more importantly, i discovered excessive rust underneath this vehicle. because these conditions were not divulged to me by mr. johnson, i am having a hard time selling the vehicle that practically cleaned out all of my savings. he claimed this truck was garaged kept and that he did no off road riding. this apparently is totally untrue, as the car would not have as much rust as it is loaded with for a 2006! so, can you tell me what recourse, i may have as a the buyer, besides hiring a private attorney who i can't afford, as i am on permanent disability. there must i something my i can pursue under any state or federal consumer laws, especially, since the vehicle is still under warranty by general motors.. i should also add that i am having difficulty with a local hummer dealer royal hummer in florham park, who seemed reluctant to address the many issues i am having with this hummer! i would also appreciate if you can forward this complaint to general motors corporation, in michigan, as they should know i am having difficulty with dealers wanting to honor,as they should, any warranty work! i am prepared to file every complaint i could to get restitution for this apparent. *tr | |||
| 06/08/2007 | 7240 | 3 | 09/30/2005 |
| A rough idle, chugging / running concern may be encountered with a p0014 dtc. possible clogged fuel injectors. *tr | |||
| 11/09/2006 | 5000 | 1 | 05/08/2006 |
| Dt*: the contact stated while driving 40 mph on city streets, the vehicle ran and idled rough. the vehicle was eventually driven to the dealer who determined the cylinder head and valves needed to be replaced. | |||
| 01/01/2006 | 10000 | 1 | 06/10/2005 |
| Vehicle had an engine miss fire that required replacement of the head. miss. returned shortly after repairs. dealer said there was no miss. vehicle filled up with water during a rainstorm. all interior had to be removed and dried out. electrical problems occurred that required four batteries over 12 months. dealer stated it was my problem, because i had a small inverter for computer. sold the vehicle to the hummer dealer at a loss of $15,000. hummer refused any assistance after first stating they would. *jb | |||
| 07/17/2006 | 2400 | 4 | 12/17/2005 |
| Dt*: the contact stated the engine was misfiring causing the vehicle to lose power while driving at any speed. after losing power, the engine ran rough at the decelerated speed. the vehicle was taken to the dealership four times for this issue. the first time the dealership corrected circuit #239. the second time there was a lose terminal. the third time the #1 cylinder coil was replaced and the fourth time there was a lose wire. the vehicle is running on only four cylinders. the problem recurred again shortly after picking the vehicle up from the dealership. | |||
| ENGINE AND ENGINE COOLING - COOLING SYSTEM | |||
| 06/30/2011 | 90000 | ||
| Tl- the contact owns a 2006 hummer h3. while parked the contact noticed the hvac unit had failed. the vehicle was taken to the dealer for diagnostics. the technicians stated the hvac blower motor had over heated and had melted the resistor. the technicians stated the blower motor, the relay and the wiring harness needed to be replaced. the vehicle was not repaired. also, the contact stated the front drivers side mirror vibrates while driving. the technicians stated the arm bracket that holds the front drivers side door mirror was broken and needed to be replaced. the contact has also noticed while driving and depressing the accelerator pedal the vehicle would decelerate. the vehicle was taken to the dealer where the electric pedal was replaced. the vehicle hvac unit and the drivers side mirror was not repaired. the approximate failure mileage was 90,000. ds | |||
| 07/03/2011 | 104000 | ||
| Tl- the contact owns a 2006 hummer h3. while driving at approximately 25 mph the contact stated the blower motor stopped functioning and noticed a burning smell. the vehicle was taken to the dealer for diagnostics. the technicians stated the wiring harness had melted and the heater blower motor resistor needed to be replaced. the vehicle was not repaired. the approximate failure mileage was 104,000. ds | |||
| 06/30/2011 | 90000 | ||
| Tl- the contact owns a 2006 hummer h3. while parked the contact noticed the hvac unit had failed. the vehicle was taken to the dealer for diagnostics. the technicians stated the hvac blower motor had over heated and had melted the resistor. the technicians stated the blower motor, the relay and the wiring harness needed to be replaced. the vehicle was not repaired. also, the contact stated the front drivers side mirror vibrates while driving. the technicians stated the arm bracket that holds the front drivers side door mirror was broken and needed to be replaced. the contact has also noticed while driving and depressing the accelerator pedal the vehicle would decelerate. the vehicle was taken to the dealer where the electric pedal was replaced. the vehicle hvac unit and the drivers side mirror was not repaired. the approximate failure mileage was 90,000. ds | |||
| 07/03/2011 | 104000 | ||
| Tl- the contact owns a 2006 hummer h3. while driving at approximately 25 mph the contact stated the blower motor stopped functioning and noticed a burning smell. the vehicle was taken to the dealer for diagnostics. the technicians stated the wiring harness had melted and the heater blower motor resistor needed to be replaced. the vehicle was not repaired. the approximate failure mileage was 104,000. ds | |||
| 06/30/2011 | 90000 | ||
| Tl- the contact owns a 2006 hummer h3. while parked the contact noticed the hvac unit had failed. the vehicle was taken to the dealer for diagnostics. the technicians stated the hvac blower motor had over heated and had melted the resistor. the technicians stated the blower motor, the relay and the wiring harness needed to be replaced. the vehicle was not repaired. also, the contact stated the front drivers side mirror vibrates while driving. the technicians stated the arm bracket that holds the front drivers side door mirror was broken and needed to be replaced. the contact has also noticed while driving and depressing the accelerator pedal the vehicle would decelerate. the vehicle was taken to the dealer where the electric pedal was replaced. the vehicle hvac unit and the drivers side mirror was not repaired. the approximate failure mileage was 90,000. ds | |||
| 07/03/2011 | 104000 | ||
| Tl- the contact owns a 2006 hummer h3. while driving at approximately 25 mph the contact stated the blower motor stopped functioning and noticed a burning smell. the vehicle was taken to the dealer for diagnostics. the technicians stated the wiring harness had melted and the heater blower motor resistor needed to be replaced. the vehicle was not repaired. the approximate failure mileage was 104,000. ds | |||
| 11/05/2010 | 47644 | ||
| 2006 hummer h3 47000 miles only 2 months out of warranty. check engine light came on, noticed rough idle. dealer says must replace head due to misfire and trouble with cylinder 5. dealer recognized common problem with this engine, but refused to do anything but discount the repair from 3200 plus tax down to 2800. this appears to be same engine problem as was covered for the colorado, but gm refuses to help with h3! | |||
| ENGINE AND ENGINE COOLING - COOLING SYSTEM - RADIATOR ASSEMBLY | |||
| 04/18/2009 | 50000 | ||
| Tl*the contact owns a 2006 hummer h3. the contact stated that she noticed a puddle of radiator fluid underneath the vehicle after it was parked. the vehicle was taken to a local mechanic who stated that the radiator needed to be replaced. prior to the failure, the contact noticed the check engine light illuminated on the instrument panel. the vehicle had not been repaired at the time of the complaint. the failure mileage was approximately 50,000. the current mileage was approximately 76,000. | |||
| ENGINE AND ENGINE COOLING - ENGINE | |||
| 12/16/2010 | 45014 | ||
| Tl-the contact owns a 2006 hummer h3. the contact stated while driving 45 mph the check engine light started to illuminate. the vehicle was taken to a mechanic shop who ran a diagnostic test and found the engine miss firing and continuous leakage. they repaired the emission coil but the problem continues. the manufacturer was contacted who offered no assistance. the failure mileage was 45,014..mw | |||
| 11/20/2010 | 5000 | ||
| I purchased my 2006 hummer h3 in february 2006. after driving it for approximately 5k miles, the check engine light came on and the vehicle felt like it was losing power. i immediately took it to the hummer/gm dealer. i was told that the engine cylinder heads needed to be replaced and that there was a problem in the manufacturing process. i was in shock that i had that problem with a new vehicle and i requested that i get a new replacement vehicle because i did not want the lemon they sold me with a defective engine. i was assured i had nothing to worry about and that the vehicle would be repaired (under warranty of course) and i would not have the problem again. in november 2010, months after my warranty had expired, my vehicle had the same problem. in fact, it is at the dealer now and i still do not know how much it will cost me to repairt it. the only reason it may be repaired at no cost to me is because i paid $2650 for an extended warranty from an outside company (which expires soon). however, my extended warranty company still needs to determine if it will cover the repairs. i did my research and found that many (too many) 2006 h3s have had the same problem with the engine and it is a manufacturing problem that gm is very aware of. however, despite numeorus complaints, gm refuses to take care of the problem or issue any bulletin. this is a huge safety issue. if the engine misfires and my vehicle breaks down, it can easily cause an accident and/or rollover, and very well cost me my life and the lives of others. gm needs to recall these vehicles and issue a safety bulletin, and replace all affected vehicles. | |||
| 02/27/2010 | 77675 | ||
| Called by customer complaint of rough idle and misfire. vehicle is a 2006 hummer h3 with the l52 i-5 cylinder engine. mileage is 77675 diagnosis revealed cylinder #5 was bad. further testing revealed water in the oil. final diagnosis blown head gasket. this is a reoccurring problem with this engine and vehicle. dealer refused to repair though it is the same engine gm issued a technical bulletin calling for changing heads on the colorado. | |||
| 02/24/2010 | 60000 | ||
| 1. during normal driving and idleing i started seeing / hearing the engine misfire and illumination of the service engine soon (ses) i would experience abrupt loss of power or surging or idle roughness. after research and dealer diagnosis we found the early hummer h3 has the same atlas l52 i-5 engine as the 04-05 chevrolet colorado. the 04-05 cheverolet colorado atlas l52 i-5 engine was given a special coverage for soft engine intake valve seats, extended the warranty to 7 years and 100,000 miles under tsb 07123 nhtsa # 10022722. to fix the problem the head is replaced with one with harder valve seats. the 2006 hummer h3 should also be covered by this bulletin. gm has refused to cover my h3 with this problem even though it has the same engine simply because nhtsa # 10022722 does not specifically say hummer h3. my gm case # 71-805764673. | |||
| 12/09/2007 | 20800 | 1 | 05/16/2006 |
| Tl*the contact owns a 2006 hummer h3. while idling at a stop light, the accelerator pedal automatically extended to the floor and the vehicle sped forward. the contact had to depress the brake pedal with both feet to prevent crashing into the preceding vehicle. the vehicle then went into limp mode and would not exceed 20 mph. the vehicle was towed to the dealer and they replaced the throttle body assembly. the dealer stated that this was a common failure with these vehicles caused by a manufacturer defect. general motors acknowledged the failure and stated that they were replacing the unit with a different part that they believed would eliminate the failure. the replacement would be at the contact's expense. the manufacturer stated that they have not considered issuing a recall because they are repairing the defect as it occurs. the failure and current mileages were 20,800. | |||
| 02/23/2006 | 19700 | 2 | 11/17/2005 |
| Dt*: the contact stated while idling at an intersection, the check engine light illuminated and on star was called. there was an advisory to drive the vehicle slowly to the nearest dealer. diagnostic testing was performed and they determined a cylinder was leaking and the head and valve needed to be replaced. 12,000 miles after the first repair, the identical scenario recurred. when the vehicle was taken to the dealer, they determined the diagnostic code was the same as the previous visit. another cylinder was leaking and it needed a head and valve job again. the service manager expressed the reason for the recurrence was due to the design of the head which was installed when the vehicle was manufactured and during the replacement. the manufacturer was contacted, and determined that there was now a new part for replacement. the contact was concerned that the original part and the new part had the same part number. *nm | |||