with me it was the o2 censer
black is excess fuel
bad head gasket
It usually means too much fuel or not enough spark.
Low fuel pressure
In my experience with my Chevy it was a ground wire
have you checked your fuses?
they have elected a pope? in cold weather it is normal to see white smoke coming out of your tailpipe. the one you have to worry about is the black or the blue smoke
Bad heater core.
The 2005 Cavalier could have a fuel leak. Have the entire fuel system checked, as a fuel leak can cause a dangerous fire.
There are several things that can cause your 1995 Chevy Cavalier transmission not to go into drive or reverse. The most common cause is a lack of transmission fluid. A broken shifting fork will also cause the problem.
No. A bad head gasket would cause water to come out the tailpipe. You will see white smoke. Leaky rings would cause oil to come out the tailpipe. You will see blue smoke.
bad o-rings or not seated and tightened down properly
Blown Head Gasket or Bad Cylinder Head
The 1997 Cavalier has two motor mounts, as well as a transmission mount. If the mounts are broken the motor can move around and cause damage to components under the hood.
The trans is electronically shifted so the sensor being bad is a likely cause.
You need to check all of the mounts. Get a manual to show you where they are.
leaky valve seals
Have your ball joints checked out.
you most likely need an alignment or your tires just need to be balanced
The fog light bulb on a 2004 Chevy cavalier LS sport should come on when the lights are activated. If it doesn't, first check the fuse for the fog lights, then the bulb, and then the switch. One of these things is likely to be the cause of a light not working.
The vacuum lines for a 2000 Cavalier are located all over the engine bay and under the dash. A break in any line can cause rough running.
burning lots of fuel to get it going, its an old car.
the first thing to check is the manifold air temperature sensor