Four problems related to engine have been reported for the 1999 Chevrolet Silverado. The most recently reported issues are listed below.
The head gasket on the motor leaks antifreeze. This has been noted several times on vehicles that use the extended life antifreeze. The cost to fix the problem is not cheap due to the cost of labor required to remove the head from the motor and replace with new seal.
Throttle linkage sticks, ongoing problem, itermittently, mostly sticks from idle, but recently did not return to idle, had to reaccelerate and then it returned. Mechanic contacted Chevrolet dealer and was told it is a problem in around 50% of the throttle bodies in this type of vehicle. Refused to provide correction for problem and stated that it is a major problem. (not dealer where purchased).
Around 40,000 miles the engine began ticking and tapping after start-up when the rngine is cold. Now its happening all the time when you start it up. I heard from other owners its called (piston slap). I took ithe vehicle to the dealer and they said they had quite a few complaints about this and said the manufacture is working on the problem. Does'nt look like anything will be done about it!!!! please help?.
Right rear was hanging from under the mounts. When going over a bump it was hard to keep control. Please provide any further information.