Question about 1989 Chevrolet S-10 Blazer
Changed idle air plunger . when runnin rich at low rpm i unhook one injector and got it home , help
Sound like it could be a faulty cold start solenoid/relay. can't tell you what the resistance should be off hand but I would start with the cold start cicuit of your injection system.A good workshop manual will guide you as to the testing steps to follow.
Posted on Jan 19, 2013
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Posted on Jan 02, 2017
SOURCE: 1989 Chevy K5 Blazer uneven idle
I had this probelm, we found that the throttle body gasket was letting air in through a tiny pin hole, new gasket fixed it. You have rebuilt yours, maybe check the seal. Be sure and use a new gasket.
Posted on Jan 24, 2009
SOURCE: 2000 Malibu will not idle
It sounds like either and O2 sensor (primary or bank one) or it may be a MAF sensor have the car checked at an auto zone parts store for stored computer trouble codes, this chech is free and should point you in the right direction instesd of just replacing parts you may not need.
Posted on Sep 21, 2009
Testimonial: "Thanks, I needed some place to start checking, the OBD is reporting zero codes.(forgot to put that in my question.)"
Do you have any check engine lights on? If so, what codes? This could also be the signs of a bad coolant temp sensor thinking the engine is cold all of the time. Does it get to the normal operating temperature? On this model, do you see electrical connectors at fuel injectors or is it a big, bulky, black manifold? If it is the big manifold, the injector are inside and mechanical. This is where it gets expensive! The entire manifold must be removed in order to get to them and these have common failures. Let me know what you see and I will be happy to help pinpoint the repair.
Posted on Oct 26, 2010
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