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Toyota
4Runner
Engine
Symptoms
Idle Erratic
1990 Toyota 4Runner idle
1990 TOYOTA 4RUNNER
192,000 MILES • 4 CYL • 4WD • MANUAL
WVTAZ46
MEMBER
1 POST
after warm up engine will idle up and down from 1000 rpm to 1500 rpm
Dec 28, 2007 at 8:54 PM
BLACKOP555
✓
Experienced Mechanic
10,386 POSTS
clean out your throttle body and check your EGR valve, next check your IAC module.
does it run poorly when driving?
Dec 29, 2007 at 3:13 AM
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