The contact owns a 2004 Chevrolet Tahoe. The contact stated that coolant was slowly leaking into the cylinder head, causing the engine to overheat. The dealer was notified of the failure who advised that the cylinder head be replaced. There were no recalls for the failure. The manufacturer was notified who advised that the contact should take the vehicle to the dealer for repairs. They offered no further assistance. The failure mileage was 75,000 and the current mileage was 105,000.

- Greenville, SC, USA

The GM 5.3L built between 2002 and 2006 using castek corporation engine heads were incorrectly built per GM and castek. The heads leak engine coolant into the combustion chambers and burns off causing the engine to overheat. GM has issued a technical bulletin regarding this issue and requests the heads be changed out but at the clients expense. With the loss of coolant and inevitable engine damage this is a safety hazard and should be a recall and replaced at GM cost. Technical bulletin 06-06-01-019B issued 6/12/2007.

- League City, TX, USA

- the contact owns a 2004 Chevrolet Tahoe with an odometer reading of 80000 miles. The contact noticed that when driving for a long period of time and coming to a complete stop then start moving again the speedometer will stay at zero. The contact stated that the only way to get the speedometer to work again was to turn the vehicle off, then let it sit for a moment and restart. This problem made the contact run out of gas several times since the gas gauge did not working properly, the oil gauge wasincorrect as well. The contact took the vehicle to the dealer, and they told him that the instrument panel needed to be replaced.

- Glennpool, OK, USA

The caller stated vehicle stalls. This happens when driving at slower speeds and idling. The engine hesitated just before it stalled. Dealer said the problem was in a computer chip the first time. The second time he had it in they told him he may be out of gas they could not duplicate the problem. Manufacturer was called and he filed a complaint with them.

- Parkland, FL, USA

While driving on the interstate at 76 mph the vehicle was stalled, and the engine cut off. The owner had to pull over and restart it. Vehicle started back up, and died twice after that within 40 miles. The owner stated that there was no check engine light. The owner called onstar and they didn't see a problem. The owner stated vehicle lost power steering and brakes when the engine cut off. The car was taken to the dealership, and they could not duplicate problem. The owner contacted Chevrolet, and they stated that they will look into the problem, and advised the owner to call back today. The problem happened since last year. The owner was still driving, it but did not want the car anymore since it was not safe to drive.

- Oxford, MS, USA

Idling or when vehicle is hot it backs fires. Dealership was notified, but did not resolve the problem.

- Giddings, TX, USA