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Automotive Repair Car Troubleshooting Topics   Car Troubleshooting   Engine Troubleshooting   Engine Fault Codes   Electrical and Wiring   Transmission Problems Car Repair Topics   Car Making Noises   Car Stereo Repair   Heating or AC Issues   Motorcycles and ATVs   Tricks of the Trade   Truck Repair Advice Site Options:      Login   Sign up here! Latest Forum Post   Rear brake retaining clips 2015 Toyota Camry. I bought Import Direc...   2010 Mazda 3 Electrical Going On and Off while driving I drive a 2010 Mazda 3. It's always been...     Car idles funny but doesn't throw codes 2006 Hyundai Elantra Engine size: 2.0L m...   Sanded rotors (deep scratches) I'm new to the forum and I have a couple...   Code P0193 Fuel Rail Pressure Sensor Circuit High Bank 1 2004 Ford E-350 Super Duty Ext Cargo Van...   speedometer wild deflections; sometime pump gas 1999 Gmc Savana, rwd, 5.7 (I think) v8 ...   Car stalling problem My 2013 hyundai started losing power whe...   2018 Kia soul. Knocking while accelerating. Hello, my 2018 Kia soul started making t...     2005 Buick Lesabre surging My 2005 Buick Lesabre runs good & th... Misfire on coil E I am new to this forum. I haven't figure...

1987 GMC Safari Fast Idle Sign up here! Search this forum this category all forums for All words Any words Whole Phrase (search options) Auto Repair Home>> Automotive Repair>> Engine Troubleshooting olii2d New User Nov 24, 2010, 12:01 PM Post #1 of 5 (2061 views) 1987 GMC Safari Fast Idle Sign In   I have a 1987 GMC Safari with 4.3 engine that idles too fast.Replaced the idle control valve without any change. Any ideas what I could try next? Thank you Roger Hammer Time Ultimate Carjunky / Moderator Nov 24, 2010, 12:05 PM Post #2 of 5 (2054 views) Re: 1987 GMC Safari Fast Idle Sign In Look for air leaks somewhere. The vacuum is controlled by metering air flow into the engine. If it's getting unmetered air from anywhere, it can control the idle. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 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. Elise Car Tech User Nov 26, 2010, 9:51 PM Post #3 of 5 (2030 views) Re: 1987 GMC Safari Fast Idle Sign In Can you post the IAC counts, and is it possible for you to take a photo of the data stream while the engine is at high idle and post the picture? Disabled live link (This post was edited by Sidom on Nov 26, 2010, 10:04 PM) Sidom Veteran / Moderator Nov 26, 2010, 10:06 PM Post #4 of 5 (2025 views) Re: 1987 GMC Safari Fast Idle Sign In Elise Car Tech. Please stop posting live links to other sites, you've been asked before to stop doing this.. way2old Veteran / Moderator Nov 28, 2010, 3:49 PM Post #5 of 5 (2006 views) Re: 1987 GMC Safari Fast Idle Sign In Look down inside the throttle body for any sign of the gasket being sucked in and causing the air leak that the ECM is trying to compensate for. It is a fairly simple and inexpensive DIY project. Being way2old is why I need help from younger minds   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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