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working with vacuum gauge Sign up here! Search this forum this category all forums for All words Any words Whole Phrase (search options) 1 2  View All Auto Repair Home>> Automotive Repair>> Tricks of the Trade zoggnoff User Jul 3, 2009, 3:29 PM Post #26 of 28 (1915 views)      Re: working with vacuum gauge   changed the front three plugs, no effect on how it ran. currently getting a p0401 code. so definitely need to check the valve and stuff... but could that code just be a result of having a low vacuum reading of 14 in-hg? engine was knocking. I have some new silicone tubing on order to replace vacuum lines, will have soon, i figure once that arrives i will clean out the metal parts of the tubing on the vac system with wire pipe cleaner brush and some carb spray, also sometime on that day test the vac system integrity itself with the pump etc etc. what do you think? carsinsc New User Sep 21, 2010, 10:19 PM Post #27 of 28 (1801 views)      Re: working with vacuum gauge   Have you done a compression test on this motor? If it was overheated, you may have low compression causing your problems. A leak down test would help verify wether your valves are sealing properly. Start with the basics before you throw a bunch of money at a problem that can't be fixed by just replacing parts. Poor compression = poor running. Tom Greenleaf Ultimate Carjunky / Moderator Sep 22, 2010, 12:19 AM Post #28 of 28 (1798 views)      Re: working with vacuum gauge   carsinsc: This thread is well over a year old. Welcome to the site but take note of the dates of the threads, T 1 2  View All   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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