Hydraulic valve lifters in 7.4L engine came apart under normal driving at 78,000 mi. Oil has been changed regularly since new.

- Danbury, CT, USA

Chevrolet service engine light is consistently on in the vehicle. Dealership can't seem to give an honest answer as to what is the problem.

- Oceanside, CA, USA

There is a coolant leak, the dealer could not locate the leak, the crankshaft was also leaking.

- East Northport, NY, USA

Problem with brake failure from day one. 1st:original power steering pump that controls the brake pressure was replaced when pulley shaft broke. Lost all power and braking ability when the pump shaft broke. No brakes no steering. 2nd: Since initial purchase I have had panic brake failure. When brakes are required at panic stop, the brake pedal will go all the way down to the floor. Brakes become inactive until pressure builds up and pedal regains original height. At that time the brakes will become active and start to slow the vehicle. This almost caused me to hit someone who jumped infront of my vehicle. Swerved to avoid incident. Have spoke to different dealers and all say that that is normal and nothing can be done. I have spoken to other Suburban owners who also have experienced the same problem and also to nothing wrong. 3rd problem is with steering system is too loose. Truck wanders at hwy speeds. Must continually readjust steering back and forth.

- Medford, NY, USA

Coolant light comes on while driving, and when driving 200 miles or more the light comes on again. Dealer replaced the engine because anti-freeze got into the engine through a head gasket.

- Merkel, TX, USA

Oil plug failed causing oil to leak.

- Aurora, CO, USA