Question about 1987 Isuzu Trooper
My 1987 isuzu troper 2 idle is a up and down. I change new carborator, new rotor, new cap rotor, new spar plug and new spar plug wire. All vacuum hoses are being changed but still the idle are still the same. what is the problem why the idle is up and down.
Posted on Aug 07, 2011
The idle screw is on the throttle body near where the gas pedal cable attaches to it. Not sure what sensors it has and less familiar with pre 90's cars but if it has an IAC or TPS could be causing problems. Clean the throttle body/carb.
Posted on Sep 05, 2010
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Posted on Jan 02, 2017
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