2002 Chevrolet 2500hd w/ 8.1L gasoline engine: The failure of the crankshaft position sensor on these engines appears to be a very common problem. This sensor failed on my truck at only 30K miles! I know of two other '02 trucks w/ this engine that also had the sensor fail and many others have been discovered while doing research on this problem! the seriousness of the problem lies in the fact that the truck suddenly stops running for no reason and you lose all power for the brakes and steering. At times it will restart without any problems once you shift to neutral, but other times it may not restart for a day or more. This was a huge safety issue for me since I tow a 10K lbs. Fifth-wheel with the truck! my truck stopped running four times over the course of two weeks as a result of this problem. Everytime was while traveling in traffic, with only one of the times while being stopped at a light! my truck is no longer under warranty due to the time limit of 36 months expiring. To have such a part fail with only 30K miles on the engine is outrageous. One of the other trucks I know of had the sensor fail around 55K miles. Same problem, it would just stop in traffic or when pulling out of a light or stopped turn. Again, a huge safety issue!!! the costs to me to repair my truck follow: Ac delco replacement crankshaft sensor - $69.26 tow charges to tow to joseph Chevrolet, cincinnati, oh - $58.85 labor due to the original sensor breaking in the block! - $336.54 total cost to replace the sensor after only 30K miles! = $464.65 again, I have to repeat how large a safety issue this is on these trucks!!! the engine just stops for no reason at any time, highway, slow moving, stopped, etc. It may restart, but then again it may not for many hours! the trucks with these engines in them are generally towing large trailers behind them. This compounds the safety aspect of the problem.

- Cincinnati, OH, USA

Distributor cap was replaced on four occasions. Moisture from the air conditioner hose caused it to misfire.

- Post, TX, USA

Moisture dripping from an air conditioner hose corroded the distributor cap to the point that the engine would run very roughly and with no power. Dealer replaced the cap, spark plug wires and covered the A/C hose at 22800 miles but the same symptoms started again at 43880 miles.

- Mount Pleasant, SC, USA

Vehicle repeatedly stalled while driving, and would not restart for several minutes.

- West Covina, CA, USA

Condensation dripping on my distributor, caused the ignition to fail (distributor cap) was fixed by applying plastic hose to ac line that was dripping on the dist. Cap. (fixed by dealer) but: The hose now routes the water to a spark plug!!!

- Weatherford, TX, USA

Vehicle shut down while driving at any speed, in particular when the air conditioner was on. Dealer has replaced three times the cap and rotor.

- Robstown, TX, USA