SOURCE: 1995 chevy truck intermitent high idle and solution...
Is your air cleaner good ? Replace aircleaner. look for leaks of anyliquids or debris that may be keeping the valve dirty.
SOURCE: 1995 Chevy K1500 4.3L V6. Engine has inconsistant idle
Have you changed the fuel pump yet?I had the same exact problem.I replaced my fuel pump with an AUTOZONE PIECE OF JUNK fuel pump.That pump lasted almost 2 days.The second day i had it the truck didnt want to start but it did and it ran like ****,and when i put it in gear it ran as long as I didnt touch that gas pedal.You could go get a fuel pressure test or just replace it,your call.You might want to check your filter too but im sure its the pump.Good luck
SOURCE: fast idle after warm up .already changed IAC valve
fast idle is many times caused by a engine intake vacuum leak, use a can of carb spray and spray the top of the engine for leaks, if u hit one u will hear the eng change idle speed, also look for split or leaking vacuum hoses.
SOURCE: my 4x4 will not i engage on my 1995 chevy k1500
check the front actuator its behind the front diff
SOURCE: I have a 2000 chevy malibu, the idle runs too high
A very common cause for your issue is a faulty TPS, ( throttle position sensor ).
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