The contact owns a 2000 Chevrolet Silverado. While the vehicle was stopped with the air conditioner engaged, the vehicle began to overheat. In addition, the contact stated that the temperature gauge displayed a high reading. The failure recurred on numerous occasions. The vehicle was taken to an independent mechanic who diagnosed that the water pump and anti-freeze needed to be replaced. The vehicle was repaired; however, the failure recurred. The manufacturer was not notified of the failure. The failure mileage was unknown.

- North Fort Myers, FL, USA

The contact owns a 2000 Chevrolet Silverado. The contact stated that while parked, he noticed a loud ticking sound. The contact inspected the vehicle and noticed that the intake manifold bolts were fractured. The manufacturer was not made aware of the failure. The vehicle was not repaired. The approximate failure mileage was 140,000.

- New Stanton, PA, USA

During a Utah state safety inspection last year it was found that 3 of the 12 exhaust manifold bolts were broken on my 6.0L engine. The bolt heads were completely broken off/missing. The broken bolts allow the exhaust manifolds to leak causing problems with emissions. If left undetected this problem can cause the catalytic converter to fail. Just to have the bolts repaired is a very expensive >$500 repair that could have been averted by having these faulty bolts changed out early on. Once the bolts are broken they have to be extracted which is very difficult due to the thermal deformation and corrosion. Two of the bolts were in the rear most holes which have very limited access. I have not received any notices from the manufacturer in regards to this problem. I have owned this truck since it was new. I would like to request a recall from the manufacturer due to the fact that it causes emissions problems and increases pollution. If you consider how many of these trucks, Tahoe, and Suburban have been on the road since 1999, the increase in pollution is considerable.

- Willard, UT, USA