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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   2006 Toyoto Camry XLE Driver Side Electric Window Trouble Hello, Looking for a little brain help ...   Tierod end change caused some kind of leak Hello so I just took my car to the nearb...   2011 Dodge Nitro OBD scanner seems to drain battery in 10-20 minutes When I bought this car in summer 2023, a... Grounding Cable, 2017 Jeep Renegade Trailhawk The Cable that connects my negative batt... Rough Idle (Found new thing) Hi everyone. First of all sorry for bad ...     equipment hey yall. im a first year engineering st...   HELP I have a 1956 1/2 ton panel truck, 69 35...   Howdy     Just wanted to s...   ABS/Tractiob/Brake Lights on But No DTCs Hello all, Recently while driving m...   Chevy strut replacement I'm trying to get a sensor of some kind ...

Search Auto Parts Search 90 chevy 2500 won't hold idle Sign up here!   Email This Post Auto Repair Home>> Truck Repair>> Truck Repair Advice bklinger New User Dec 25, 2010, 5:48 PM Post #1 of 4 (3119 views) 90 chevy 2500 won't hold idle Sign In Truck otherwise runs great, just wont idle when it warms up. has 145000 miles any help would be appreciated! Tom Greenleaf Ultimate Carjunky / Moderator Dec 27, 2010, 8:31 PM Post #2 of 4 (3101 views) Re: 90 chevy 2500 won't hold idle Sign In Vacuum leaks or in need of professional injection cleaning or a host of possibilities. Telling us what engine would help, T bklinger New User Jan 3, 2011, 5:11 PM Post #3 of 4 (3075 views) Re: 90 chevy 2500 won't hold idle Sign In sorry, 5.7 L. 4x4 throttle body fuel injectio,n. Just changed the IAC did not help, now I'm being told it may be the throttle control sensor, don't want to keep guessing these sensors are getting expensive,it has 146,000 miles,not worth alot. Hammer Time Ultimate Carjunky / Moderator Jan 3, 2011, 5:43 PM Post #4 of 4 (3070 views) Re: 90 chevy 2500 won't hold idle Sign In There are a few different things that go wrong with these. First, you should have given the throttle body a good cleaning before changing the IAC. Get some carb cleaner and an old toothbrush and scrub the back side of the throttle plate and the inside bore of the throttle body. Some other things that go wrong are the base gaskets for the throttle body can go and in some cases the throttle body itself leaks internally. Sometimes they leak vacuum and sometimes the leak EGR into the intake. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 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.   Email This Post   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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