check for a vaccum leak, broken or disconected vaccum hose, or accelerator cable may be sticky. hope this helps
The cause of high engine idle and surges in the 1989 Corvette is due to..Read More
Check throttle positioning sensor.
engine idle set too high or the timing is off and needs reset.
Engine idle too high.
Vacuum leek
low idle and uneven idle
The throttle body is where the air cleaner hose connects to the engine. Disconnect this hose to get to the body. The body can be cleaned pretty thoroughly with a spray cleaner found at most auto parts. Make sure to follow the cans directions.
High idle, misfire, check engine light,High idle, misfire, check engine light,
There are several things that can cause high idle. An older carbureted engine may have a vacuum leak or sticking choke linkage. Newer computer controlled engines have an idle control device called an idle motor which could be faulty or receiving bad information from other sensors on the engine ( IE. temperature sensor ).
whats the problem for my 94 ford van engine high and low idle
the choke is on
Timing belt. misfiring engine