: the contact stated after parking the vehicle for a few minutes, the vehicle would not restart. When the key was turned in the ignition the engine would not turn over but only made a whining noise. The vehicle was towed to an independent repair shop, upon inspection the engine had seized. The timing chain had fractured, the sparks plugs had melted and the pistons had failed. The dealer and manufacturer were alerted.

- Saginaw, MI, USA

Immediately following purchase of a 2002 Chevrolet Blazer in August 2002, I noticed a loud roaring noise coming from under the hood which occured mostly upon startup when engine was cold and put into drive gear. This noise was also intermittently noticed after coming to a stop and then accelerating. By the time I drove it back to the dealership, it was not doing it. Since purchase, 2 replacement batteries have been installed. Service dept at dealership said alternator was draining the battery and replaced the alternator. Car is still doing this but dealer is unable to duplicate and saying loud roar is most likely normal. Now several acquaintances have said they had the exact same problem with their Blazer even though they were a different year model. Once the warranty runs out, this problem could add up to quite an expense.

- Spring, TX, USA

After engine has warmed up, there is a constant enging/tapping/rattle noise similar to the sound that bad lifters make. This sound is prevalent under all conditions and more pronounced on acceleration. I brought it to the dealership several times and they indicated it was a normal sound per detroit. Detroit has a document id#843248 that addresses this problem. I complained to GM and they have extended the warranty on the engine to 100,000 miles or 11/27/07 whichever comes first. I am still not satisfied as the noise is consistent and an irritant. I have looked at your site for other similar complaints and do not see any. There must be a mechanical fix to this problem but it is being ignored. The engine sound has increased since it was first noticed indecember, 2002 and reported to the dealership.

- Rio Rancho, NM, USA

Consumer stated while driving at any speed and with no warning vehicle shut off, causing consumer to pull off the road. Dealer has inspected the vehicle several times, and could not duplicate or correct the problems.

- Union, NJ, USA

The engine stalled without warning, which caused the consumer to pull over abruptly.. the dealer was unable to determine the cause of the problem. The consumer stated at one point transmission fluid leaked onto the ground.

- Mineola, NY, USA

The check engine light illuminated, and then the vehicle lost all power.

- Wharton, NJ, USA

Original camshaft position sensor replaced-- was seeping oil and saturating wiring, causing vehicle to stall. Replacement sensor is now malfunctioning in the same manner. Dealer is replacing again.

- Durham, NC, USA