It appears to be in a fast idle mode and the RPM's will not drop below 1000 in park. I have noticed it at 1200. When you put it drive it idles around 700. It seems high to not idle lower.
High idle could be caused by air inlet duct collapsed loose or air filter element clogged,idle air control valve failed,idle air inlet passage or throttle bore is dirty full of deposit,mass air flow is dirty out of calibration,throttle plate throttle shaft or linkage is damaged or leaking.have vechicle code scan first before buying new parts.
SOURCE: high rpms in park, too low in drive
sounds like ecm sensor problems.does check engine light come on at all?you may be able to get a code reader at autozone to retrieve computer stored codes, this would more than likely lead you in the right direction.some shops will do a computer check cheap if you are unable to perform this task.however the code readers come with instructions and are user friendly;-)
SOURCE: running roug at low idle, smooths out at 2500 rpms
change plug and wire if its been a while most cars have 90000 miles platinum plugs in them.but the wires wear before plugs.so change plugs and wires.+clean fuel injectors .change fuel filter and air filter.if car still run rough your idling to low.have idling check .
SOURCE: 2000 oldsmobile alero fast idle
Just fixed mine today, check the vaccum tee off the manifold to the check valve, mine was cracked, repaird with electrical tape for now.
SOURCE: My idle is running as high as 3000 rpm while
It could also be carbon build up on the throttle body, but regardless the cure is the same. Your going to need to clean the throttle body and the idle air control valve (IAC). With a can of throttle body cleaner, (follow instruction on the can) clean the throttle body blade and the IAC passage way in the throttle body. Once the throttle body is cleaned, with the engine off, turn the ignition key to the on position (engine not running) and wait for 30 seconds and then turn if off for 10 seconds and then start it. This should reset the IAC, if it did not work do it again and see if it helps. If not clean out the IAC passage way again. The turning on and off the ignition reset's the IAC and it may still be stuck with carbon build up. Once the engine has started, Note there will be lots of smoke form the tail pipe, that's normal. It's just the left over throttle body cleaner and carbon being burn off, take's not more then 10 min to burn off. Good luck and this should keep you from replacing the IAC. Oh and don't use Carb cleaner, Carb cleaner is to corrosive to the throttle body gasket.
SOURCE: low oil pressure indicator at low rpms (idle) '97 olds V8
Thicker oil is all you need. 5w30 is too thin when it warms up and the sensor cant pick up the flow going past. 10w40 should stop all the issues
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