Engine Performance problem
1999 Chevy Monte Carlo 6 cyl Front Wheel Drive Automatic 135000 miles
I have a 1999 Monte Carlo with the 3.1l V6. I have recently replaced the head gaskets and of course all of the intake gaskets along the way. I also put fresh plugs in it when it was apart. Once together I had to replace the camshaft position sensor also. It also has a P0300 random/multiple cylinder misfire code. I have replaced the plug wires and ohmed the coils and that all checks good. I have run fuel system cleaner through it. It is buring alot of fuel, 100 miles to a tank of fuel when I had been getting close to 300 to a tank before putting head gaskets in. I have also had a puff of smoke after the throttle is released from about 4000 rpm or more under load. Any ideas to check or parts to go with?
have the same problem?
Friday, January 22nd, 2010 AT 2:49 PM