I’ve got a 1999 Isuzu Rodeo with a fuel injected V-6 engine. Great vehicle. Only problem is the is the engine idles at 1500 rpm’s per the tachometer. This increases to 2000+ when the air conditioner is on. Just looking for a starting place besides the local repair shop. I have fairly good mechanical ability.
All the Best,
Bubbadownsouth.
Check into the Idle Air Control/Air By Pass motor. This is the single component that controls the engine idle speed under all conditions.
Tester
Any way to check this without replacing it?
Thanks,
Bubbadownsouth
The only way a DIY’er can check for defective IAC/ABP motor when it causes a fast idle is to, smack it with the handle of a screwdriver while the fast idle is occuring, and if this effects the idle, that’s the problem. Other than that, unless you have the proper equipment, no.
Tester