89 toyota 3.0

1989 TOYOTA PICKUP
6 CYL • 4WD • MANUAL
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KCASON78
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  • 1 POST
just rebuilt 89 toyota 3.0 engine runs good but u have to feather acceleration and when u let of gas it doesnt idle it dies
Apr 2, 2011 at 9:33 PM
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WRENCHTECH
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  • 20,761 POSTS
  • ASE Certified Mechanic
You may have a bad IAC ( idle air control) but try eliminating any vacuum leaks and cleaning the throttle body first. Remove the intake snorkel, have someone hold the throttle wide open for you and scrub the back side of the throttle plate and surrounding bore with an old tooth brush and some carb cleaner. Be sure to spray some into the small holes next to the throttle plate. That should help stabilize the idle. If it still has a problem, replace the IAC.
Apr 2, 2011 at 10:34 PM
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RASMATAZ
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  • 75,992 POSTS
  • ASE Certified Mechanic
To add on -check and test the airflow meter and EGR/PCV valves to include the TPS sensor
Apr 3, 2011 at 8:24 AM
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