Question about Cars & Trucks
Idle problems. It only idles rough on drive. So as i sit back and engage it to drive and hold the brake pedal down to wait it idles bad drops to 0 and bounces to 500 rpm. Its died a couple of times. It also idles rough if i turn my steering wheel left to right. the check engine light appears as well. they told me its an oxygen sensor
Clean the intake with a good quality intake cleaner. A carb cleaner that will not hurt plastic parts.After that let it cool, take some of the carb spray and clean the o2 sensors ,let dry,wipe the o2 sensors down with a clean cloth.replace them in there sockets.Remove one battery post for about 15 minutes.It should run better.The o2 cleaning should last only temperarely and the o2s will eventually have to be changed.you may want to check to see if you have a fuel filter and change it as well
Posted on Dec 27, 2013
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Posted on Jan 02, 2017
I think you have ruled out the engine with all the parts you have replace. The transmission torque convertor is in lock up mode all the time. The engine is having to hard of a time to stay at the normal idle. The over drive clutches and soleniod are most likely damaged in the transmission.
I think you should take the vehicle to a trasnmission shop , The can check the torque convetror soleniods and pressure control soleniod.
The oil light coming on bothers me. I know you have the rebuilt engine in the vehicle but I think the oil pump in the engine is starting to go out or could be weak. The lower bearings connected to the crank shaft might be starting to leak. Have the oil pressure checked .
Posted on Mar 19, 2009
SOURCE: IDLE PROBLEM
Here are some of the causes of surges, stalls at stops, slow idle speed, erratic idle speed, rough idle and engine hesitation (and other problems), it is in most cases the idle speed control air-bypass valve and or throttle valve and upper intake, these area's get full of gunk and combustion residue over the miles and cause idle issues (stalls, low idle) like yours, Get a can of intake cleaner from any local parts store, not carb spray, intake cleaner, it is made by a company called CRC, remove the air intake hose to the engine, hold the idle high so the engine won't stall, then spray the can of cleaner into the intake while keeping the engine running, use at least 1/2 the can, shut down the engine and disconnect the battery for 5 minutes, then restart and complete a number of mixed driving cycles, town, freeway, stop and go etc., after a few days the problem will go away as the system will relearn to the clean intake.
Posted on Apr 14, 2009
Very common problem is about a dime size hole wearing in the rubber elbow on the PCV valve located on the driver side rear of the intake manifold.
Posted on Oct 13, 2009
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