1994 Toyota Pickup idle oscillates

1994 TOYOTA PICKUP
144,000 MILES • 4 CYL • 2WD • MANUAL
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SVEN99
  • MEMBER
  • 1 POST
Idle speed goes from 1000 to 1250 rpm every second. Was a near constant problem then Dealer cleaned throttle plate and adjusted idle speed. Then was sporadic. Now Dealer put in new thermostat and it still does it. I drive alot for my job and some days it does it all day. I've seen this problem in the forum but without an answer. I don't want to go back to Dealer he's talking head gasket now. Please help.
Apr 29, 2008 at 11:49 AM
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LEGITIMATE007
  • ✓Experienced Mechanic
  • 5,121 POSTS
have your idle air control valve checked and make sure all of your vacuum hoses are in good shape and hooked up and not pinced anywhere. get back to me
Apr 29, 2008 at 2:01 PM
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