Bad heater core.
with me it was the o2 censer
latex from rubber trees is mixed with sulfur during vulcanization process
Black smoke usually means the engine is running too rich. The fuel/air mixture is incorrect. Blue smoke is oil burning.
by burning the rubber because it can affect our air
Low fuel pressure
In my experience with my Chevy it was a ground wire
have you checked your fuses?
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.
Dead battery
Blown Head Gasket or Bad Cylinder Head
bad o-rings or not seated and tightened down properly