Five problems related to engine and engine cooling have been reported for the 2004 Chevrolet Silverado. The most recently reported issues are listed below.
I have the castech heads on my truck that are known for getting cracks in them and leaking anitifreeze into the engine. The way it sounds there should of been a recall on these heads, this isn't a normal wear and tear deal. Why should the consumer pay for the cost of replacing something that obviously is a manufacturer defect since more than just one person is complaining. It seems like also that gm has helped a few people and then told others that they can't help.
Engine lost power in heavy traffic at highway speed due premature failure of diesel fuel injector. Come to find out injector have known defect and high failure rate.
The contact owns a 2004 Chevrolet Silverado. The contact stated that the vehicle was blowing cold air and the defroster failed. The vehicle was taken to the dealer who stated the cylinder head had cracked. The vehicle was not repaired. The manufacturer was made aware of the failure however provided no further assistance. The failure mileage was 110,000. The current mileage was 112,000.
The contact owns a 2004 Chevrolet Silverado. The contact stated that the vehicle exhibited an abnormal knocking from the engine. The dealer diagnosed that fuel was leaking into the engine abnormally. The manufacturer was contacted but denied any assistance with repairs to the failure. The vehicle was repaired but the failure recurred. The failure mileage was 70,000 and the current mileage was 150,000. The VIN was not available.
About 1 month after buying a new 2004 Silverado it started surging viloently when cold. It is inconsistant, sometimes lasts for blocks. I almost got rear ended last week while tryig to control the truck. Gm refuses to do anything, saying there is no diagnosis codes set and they have never heard of Silverado`s surging. They class it as a feature and say I need to feather the clutch. Feathering the clutch in traffic is a good way to get killed. This has been going on about 4 months now. I believe they know what is wrong and it is happening with more then just my one truck; but they don't want to spend the money to fix it.