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blazer hihg idle Sign up here! Search this forum this category all forums for All words Any words Whole Phrase (search options) Auto Repair Home>> Truck Repair>> Truck Engine Repair 4uz User Oct 8, 2009, 7:26 AM Post #1 of 4 (2620 views) blazer hihg idle Sign In 88 blazer 2.8L 220 injector unit 40,000 miles. it idles at1200 rpm on dashboard tach. in drive it goe's down a little bit. put new air cleaner gasket on. hasn't been tuned up in maybe 2 years. way2old Veteran / Moderator Oct 8, 2009, 12:33 PM Post #2 of 4 (2615 views) Re: blazer hihg idle Sign In Look down inside the throttle body to see if you can see any gasket material that has been sucked inside the throttle body. If the gasket os torn, the rpm's will increase due to excessive air and the ECM will add more fuel to compensate for the extra air. Being way2old is why I need help from younger minds 4uz User Oct 10, 2009, 7:30 AM Post #3 of 4 (2607 views) Re: blazer hihg idle Sign In i checked that didn't see any gasket in the way. i'm going to try some iac valves that i can get from ajunk yard . for now i'll be closing this post. thank's for your answer. Hammer Time Ultimate Carjunky / Moderator Oct 10, 2009, 7:40 AM Post #4 of 4 (2605 views) Re: blazer hihg idle Sign In Using junkyard parts can cause you even more headaches than you have now. If your going to take the path of throwing parts at it, then change the whole throttle body including the IAC. You may have a better chance. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional. (This post was edited by Hammer Time on Oct 10, 2009, 7:41 AM)   Automotive Repair     Auto Body Repair and Refinishing     Heating or AC Issues     Electrical and Wiring     Brake Systems     Car Stereo Repair Advice     General Discussions     Car Making Funny Noises     Engine Fault Codes     Engine Troubles     Exhaust Systems     Steering and Suspension     Transmission Troubles     Tricks of the Trade Automotive World     General Discussions     Antique Car Talk     Car Shows and Events     The Bargin Bin     Motor Vehicle Inspection     Car Care Tips     Traffic Tickets     Gasoline, Motor Oils, Concept Cars and Engines     Auto Insurance, Financing, Leases, Warranties Truck Repair     General Discussions     Truck Engine Repair     Truck Suspension Repair Motorcycle Repair     General Discussions     Motorcycle Engine Repair CarJunky     Open Posting     Board FAQ's     New Board Suggestions

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