Bulletins
| Bulletin | Bulletin date | Replacement Bulletin | Item no. | Summary | Added |
|---|---|---|---|---|---|
| ENGINE AND ENGINE COOLING - ENGINE | |||||
| 11-06-04-007B | 04/01/2012 | 10044229 | Gm: diagnosis and repair- malfunction indicator lamp illuminated, reduce engine power message displayed, dtc p2135 set. also included model sierra denali year 2010-2011 *js | 05/23/2012 | |
| SB-09-06-04-025 | 05/01/2009 | 10030725 | Saab/hummer/gmc/chevrolet: malfunction indicator lamp (mil) illuminated, dtcs p0300-p0306, engine runs rough (inspect for water intrusion in spark plug recess area, replace spark plug and ignition coil, seal ignition coil bolt hole vents a | 11/23/2009 | |
Consumer Complaints
| Fail date | miles | occurences | Purchase date |
|---|---|---|---|
| ENGINE AND ENGINE COOLING | |||
| 07/01/2011 | 48000 | ||
| Tl-the contact owns a 2008 chevrolet colorado. the contact stated that when the vehicle was idle he noticed that after trying to accelerate it would hesistate. the vehicle was inspected by a dealer and they advised him that the engine wires had fractured and needed to be replaced. the vehicle was repaired for the wiring in the engine. the failure mileage was approximately 48,000. tb | |||
| 02/17/2011 | 33000 | ||
| For more than 10,000 miles (starting around 33-34,000 miles) and over a year my truck has experienced an intermittent rough idle. without warning the idle will become rough and on several occasions the truck has almost stopped running. these events do not trigger a check engine light. when i take the truck to the dealer they cannot explain what is taking place. the truck has been in at least 6 times and i am losing my patience. the standard explanation is no check engine light then the problem is impossible to diagnose. i have contacted chevrolet and so far they have not been any help. i | |||
| ENGINE AND ENGINE COOLING - COOLING SYSTEM | |||
| 03/05/2009 | 1700 | 1 | |
| I purchased a colorado one week later my brakes went out. and i managed not to get in a crash. i took it to the dealer and they fixed it . they told me the vehicle sits on the lots 4 months and months and stuff might wiggle loose. ok i figured . three weeks later which would be 3/5/09 i left work and it was a nice day i turned my ac on and noticed my blower only worked on 2 and 3 my 1 and 4 would not work so i drove to an auto parts store about 10 miles away and talked to the guy and he told me its probably blower motor resistor switch. which the part was only 20 bucks but he convinced me to take it to the dealer . because it under warranty and things like this can short out and cause fires. so i left the store and about 5 miles down the road stuff started shorting out on my truck . than my passenger air bag deployed and than within 1/2 mile stuff was crazy there was smoke every where so i slammed on my brakes which they didn't work so i tried pulling off the side of the road my steering was locked up.and than something exploded under my dash than i started seeing smoke billowing out of my hood which quickly turned into flames . keep in mind the whole time this is going on my truck is going 60 mph and i have no brakes. so than i started seeing flames under my dash than my floor than everything on my floor started catching on fire and i started throwing thing out the window and the whole time this is going on i am trapped in my truck while its on fire my door locks are spacing out and im trapped. about 1 mile after my truck was pretty much fully engulfed than some how i managed to get y door open and jump out before i looked down my spedo said 35 mph and when i jumped out i managed to land on my feet and my truck slid in the mud 4 about 50-75 ft within minutes 4 police and 18 firefighters where there and 2 or 3 firefighters got hurt from shrapno . what scared me was i was trapped in my truck while it was on fire. i only suffered very minor injuries. *tr | |||
| ENGINE AND ENGINE COOLING - ENGINE | |||
| 08/10/2009 | 21000 | 1 | |
| Occasionally when the truck comes to a stop or coasting, the rpm gage starts to fluctuate, and the truck starts to shake. most of the time it will result in the truck completely turning off. this happens almost every day; occurring atleast 1-3 times. the first time it started was in the summer of 2009. it is really frustrating when this happens at an intersection, a light or maybe as i am turning, but it is extremely frightening when it happens while i'm going down hill or if i am on the freeway. i have almost gotten into car accidents because of this. my truck is still under warranty and i have taken it in to the dealership atleast 6 times and they return my vehicle usually clueless about what to do. they usually recommend for me to change my gas to shell, which i have been doing since i purchased the vehicle. they have re-done maintenance jobs on it, hoping that the problem will go away, but it doesn't. the engine light never goes on, which is a huge problem. recently they placed a data recorder to record when it happens, i recorded 5 incidents, and they came back normal!!! the data recorder doesn't pick it up! the mechanics are baffled and running out of ideas. they don't know what to do, nor do i anymore. driving this truck with this problem is not only putting me and my family at risk, but it is also endangering the people driving along me. *tr | |||
| 06/23/2008 | 5000 | 1 | |
| Noticed rough idle and hesitation at first then check engine light comes on after few weeks. cause is separate faulty ignition coils. happened at 2,000, 3,000, and 5,000 miles. dealer replaced under warranty but without explanation as to why this keeps happening. *tr | |||