Question about Cars & Trucks
THE IDLE IS ERATIC AND THE REV COUNTER BOUNCES UP AND DOWN
Posted by Anonymous on
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Posted on Jan 02, 2017
SOURCE: low/poor idle
Here is what you need to do, a cleaning of the intake throttle blade and the idle speed control air-bypass valve, they get full of gunk over the miles and cause idle issues (stalls) 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 Oct 31, 2008
have you checked your air inlet manifold for any leakages by spraying WD40 around each portall bolted to the cylinderhead gasket,check for vacuum air pipes deterioration.make sure the engine is running first ,then spray WD40 to check that the engine speed should increase.it sounds like your engine is haveing problems breathing due to heavy hydro carbons increasing./and your CO2% is dropping.
Posted on Jan 27, 2009
Faulty idle air control valve. You could try and clean it with some carb cleaner, or replace it.
Posted on Jun 03, 2009
I think you should check ABS sensor ring on the rear wheels. This is known to come loose and cause this problem. Hopefully it's just that you not the entire hydraulic unit
Posted on Aug 24, 2009
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