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1995 5.7L TBI EGR QUESTION 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 deanblough New User Aug 20, 2009, 9:59 AM Post #1 of 5 (3541 views) 1995 5.7L TBI EGR QUESTION Sign In Have a 32 code for EGR, I re-routed the vacuum from the carb to EGR solinoid to EGR valve to apply vacuum (not hand pump avail) and there was good vacuum but no reaction but push on diapham got re-action. This action should have gotten a re-action applying the vacuum correct? Hammer Time Ultimate Carjunky / Moderator Aug 20, 2009, 10:04 AM Post #2 of 5 (3536 views) Re: 1995 5.7L TBI EGR QUESTION Sign In If your saying that when you pushed the diaphragm with your finger, the engine tried to stall but nothing happend when you applied vacuum to the valve (engine running), then you likely have a bad valve. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 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. deanblough New User Aug 20, 2009, 10:07 AM Post #3 of 5 (3531 views) Re: 1995 5.7L TBI EGR QUESTION Sign In Thank you I will start with EGR Valve replacement on the 1st Loren Champlain Sr Veteran / Moderator Aug 20, 2009, 10:33 AM Post #4 of 5 (3516 views) Re: 1995 5.7L TBI EGR QUESTION Sign In Dean; A lot of these EGR valves are the backpressure type, meaning they won't open with a vacuum source unless they have backpressure. Might want to check that prior to replacing it. Ooops. Just checked. This is a negative backpressure type. It should open and hold vacuum with engine off. Loren SW Washington (This post was edited by Loren Champlain Sr on Aug 20, 2009, 10:39 AM) Hammer Time Ultimate Carjunky / Moderator Aug 20, 2009, 11:06 AM Post #5 of 5 (3511 views) Re: 1995 5.7L TBI EGR QUESTION Sign In I did specify that the engine needed to be running when the vacuum was applied. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 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.   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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