Investigations
| NHTSA ID | Manufacturer | Date open | Date close | Subject | Recall campaign | |
|---|---|---|---|---|---|---|
| VEHICLE SPEED CONTROL - LINKAGES | ||||||
| EA02015 | GENERAL MOTORS CORP. | 08/01/2002 | 01/12/2004 | THROTTLE STICKING CLOSED | ||
| This investigation involves the general motors corporation (gm)throttle body (tb) utilized in model year (my) 1999-2002 silverado, sierra, tahoe, suburban, avalanche and yukon (subject vehicle(s)) with 4.8l, 5.3l, and 6.0l engines. the tb valve may intermittently stick in a closed position.in such a situation, an operator may apply additional accelerator pedal force to increase engine speed.the application of additional accelerator pedal force, to open a stuck throttle valve, may open the throttle valve more than intended and, in turn, accelerate the engine and vehicle more than intended and reasonably expected by the driver.on august 1, 2002, the office of defects investigation (odi), of the national highway traffic safety administration (nhtsa), opened this engineering analysis.the investigation revealed that two factors may cause the defect: 1) tb manufacturing process problems; and 2) accumulation of deposits (a pcv system by-product) on or around the tb throttle valve and bore.odi concludes that the tb performs in a defective manner after analyzing gm | ||||||
Consumer Complaints
| Fail date | miles | occurences | Purchase date |
|---|---|---|---|
| VEHICLE SPEED CONTROL | |||
| 05/09/2004 | 3 | ||
| When driving 40 mph vehicle accelrated and the steering wheel locked up. consumer was able to stop the vehicle, and consumer had the vehicle towed to the dealership for inspection. mechanic was unable to duplicate the problem. *ak | |||
| 12/04/2002 | 1 | ||
| Consumer states that while stopping at a stop sign and without warning the vehicle would acclerate. dealer notified.*ak | |||
| 10/01/2002 | |||
| Consumer states while driving 60mph vehicle's speed dropped dramatically to 40mph w/o warning then increased back to driving speed. consumer advised that problem occurs intermittenly. ts | |||
| Vehicle has variation of sudden accelration; while driving 35 mph, speed would continue if foot is removed from accelerator. can be sitting in park, once shifted into drive/reverse truck will lunge with force. please describe details. *ak | |||
| 01/15/1999 | 2 | 01/15/1999 | |
| Consumer states the engine speed does not return to idle when the accelerator is released, the vehicle will go 20 to 30 miles per hour on its own, the problem is more persistant when the weather is warm/hot, consumer reported the problem on several occasions only to be told there were no codes stored, finally the manager of the dealership drove the vehicle and determined the problem was a bad idle solenoid, they replaced it and that fixed the problem for about a year, the problem has reoccured and the vehicle is now out of warranty and it continues to run about 1000 rpm for a time after releasing from the accelerator.*jb | |||
| 03/05/2002 | |||
| Steering become hard whenever making a turn. dealer notified, and informed consumer that speed sensor needed to be replaced. feel free to provide any further information. *ak | |||
| 06/20/2001 | 0 | ||
| Vehicle was parked and running inside of garage. heard a noise and engine roared up, and vehicle took off and went though consumer's living room and kitchen. dealership was aware of problem.*ak | |||
| 0 | |||
| When accelerating engine did not return to a normal level. it suppose to return to 800 rpms, instead it hung up at about 700 rpms also, it did this at highway speed. consumer has contacted dealer, and dealer reset computer and cleaned carbon. however, problem kept returning. this was dangerous because when accelerating and taking foot off of gas pedal vehicle did not slowdown, it stayed right at that speed. please provide any further information. *ak | |||
| 11/09/2000 | 1 | 02/27/1999 | |
| Consumer's wife was pulling inside of a parking space and engine surged while foot was on brake. surburban jumped curbe and hit a tree. dealership was aware of problem. there were no injuries.*ak the mechanic stated the problem was caused by throttle sensor failure. *yh | |||
| When consumer releases brakes to go foward from a stop vehicle will accelerate forward. dealer claims this is a normal characteristic, and cannot be repaired.*ak | |||
| 08/17/2000 | 1 | 02/01/1999 | |
| Automobile accelerator stuck and would not release without shutting off engine. vehicle stuck at 60mph out of control!!! very dangerous and lucky it did not result in serious accident or fatality. | |||
| 07/29/2000 | 4 | 05/01/1999 | |
| The engine rpm will at times increase while braking. one time the engine speed up significantly after removing foot from gas pedal. the engine rpm will at times pulsate while coasting in gear. this has been an on going problem since new. *ak | |||
| Engine does not return to idle when letting off the accelerator pedal, cause unknown. *ak *ml | |||
| 07/04/1999 | |||
| While driving vehicle it suddenly died out for no reason. later, vehicle could be restarted. then the engine check light would come on & stay on. engine would start to surge. vehicle would stall out again. would not stay started. after giving vehicle gas, the rpms would rev high. taking vehicle to dealer to have it checked out. *ak | |||
| 02/21/1999 | 3 | 05/01/1998 | |
| Engine accelarates at any given time, excessive rpms , causing accidentin parking garage. in dealership three times for high acceleration , still with no real answer as to what the problem is | |||
| VEHICLE SPEED CONTROL - ACCELERATOR PEDAL | |||
| 07/21/2000 | 1 | ||
| Consumer believes the design of the accelerator pedal on vehicle is unsafe, there is no tacticle feedback and consumer cannot tell when the engine is going to kick in until it does. nlm | |||
| VEHICLE SPEED CONTROL - CRUISE CONTROL | |||
| 09/01/2004 | 75000 | 12 | 07/01/2000 |
| Dt: the contact stated there was a problem with the abs and the wiring harness . when driving less than 10 mph and applying the brakes the abs activated. the contact's husband replaced the brake pads at least six times. before the wiring harness burned the dashboard was hot. the dashboard lights, tail lights, headlights, and cruise control were not working. *ak | |||
| VEHICLE SPEED CONTROL - LINKAGES | |||
| 08/05/2004 | 72000 | 2 | |
| When braking brakes failed, causing extended stopping distance. dealership was notified, but did not resolve the problem. *ak the consumer crashed into a garage wall while entering. the pedal stayed up and firm and wouldn't slow the vehicle. seconds later the brakes worked fine. the dealer stated that they couldn't find anything wrong. *sc | |||