Four problems related to engine exhaust system have been reported for the 2007 Chevrolet Silverado 1500. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2007 Chevrolet Silverado 1500 based on all problems reported for the 2007 Silverado 1500.
When you start the vehicle their is a blue/black puff of exhaust. The vehicle now is using oil very badly and leaves oil spot whenever it parked.
2007 chevy silverado exhaust manifold bolts snapping. The exhaust manifold bolts on gm 4. 8, 5. 3, 6. 0 v8's are junk and defective. They corrode and snap easily and prematurely. My truck is a 2007 with 84000 miles with an exhaust leak caused by defective bolts. Bolts are not covered under gm powertrain warranty.
I have a 2007 chevy siverado 4. 3 l v6 engine. The emissons system went crazy, first saying coolant temperature too low for engine,replaced thermostat that went bad,got stuck open. Light goes out. Next day light back on says evap solenoid vent has grooss leak. There r no replacemant parts for this failure come 2 find out after talking to dealer. U have to buy whole new solenoid vent system and add 5/8 heater hose to rerun the vent so dirt,dust and debris is harder to enter the vent. They say its a flaw in design so gm redesigned it and this is how to fix it. If they know its a bad design then they should pay for it to be replaced with their new design.
Exhaust manifold bolts broken off on 3 of my Chevrolet silverados.