it could be a bad vacuum line or it could be the the throttle position switch
Most '86 Caprice engines were fitted with a four barrel carb which requires occasional adjustment to keep idle at reasonable speed.
Um that's not right, that's a red flag. Get it checked out.
Perhaps throttle plate is stuck - try to free with a screwdrive in the throttle body
The 1995 Monte Carlo could have a vacuum leak. An engine vacuum leak can make the car idle up and accelerate.
your car is idleing to high you need to have that looked at your car is idleing to high you need to have that looked at
to me that sounds like many tings could be wrong with it lines are dirty, tune up, bad gas, or idle is too low
It is the idling sensor on top of the intake
if u take off the egr valve and tap it it on something to knock out the carbon built up inside ,and put it back on, its a free fix,just the labor involved
The most classic symptom is erratic or rough idling.
cause if its idling at zero rpm the motor is off ...
This is happening to my car right now and Im just getting the car idling fixed. It can't be for sure, but your car may need the idling checked.
It may be a EGR valve issue. This valve is normally closed at idle and opens at about 40mph.