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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 fuel leak down Sign up here!   Email This Post Auto Repair Home>> Automotive Repair>> Car Troubleshooting upmaine User Jul 21, 2010, 11:27 AM Post #1 of 5 (2168 views) fuel leak down Sign In I have a 99 chevy s10 blazer with a vortec 4.3 and fuel system is having a leak down. If I start the balzer within 20 minutes of it being turned off it will start ok but any longer than that it takes several tried before it will start so i got a pressure gauge and as soon as i shut it off the pressure starts to fall. I replaced the fuel pump 14 months ago. will the fuel pressure regulator cause this type of leak down and can the fuel pump also cause this. I was not sure if the fuel pump had some kind of valve that held fuel pressure. Is their anyway to figure out if it's the fuel pressure gauage with out removing the top part of the intake and to figure out if it's the fuel pump causing this. Hammer Time Ultimate Carjunky / Moderator Jul 21, 2010, 11:37 AM Post #2 of 5 (2166 views) Re: fuel leak down Sign In That's easy. Just pinch off the feed line after building pressure and it it holds then, the fuel pump is the problem. If not, the problem is forward of that point. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 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. Hemi Guy User Jul 21, 2010, 2:10 PM Post #3 of 5 (2158 views) Re: fuel leak down Sign In Do yourself a big favor guy. Get a suitcase of Becks this weekend and do the modification below. Vortecs are just one pain in (you know what) after the other. As soon as you fix one thing the poppets will be leakin again. http://members.shaw.ca/...ticking%20Poppet.htm Hammer Time Ultimate Carjunky / Moderator Jul 21, 2010, 2:38 PM Post #4 of 5 (2153 views) Re: fuel leak down Sign In Interesting procedure. I don't know that I would dive into something like that just yet. As a rule I don't see that many problems with the injectors although they should be pressure cleaned occasionally. I drive one myself. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 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. Hemi Guy User Jul 21, 2010, 3:05 PM Post #5 of 5 (2150 views) Re: fuel leak down Sign In (Quote) Interesting procedure. I don't know that I would dive into something like that just yet. As a rule I don't see that many problems with the injectors although they should be pressure cleaned occasionally. I drive one myself. I drive a 2007 Infinity G35X. It's got 519.641 miles on it. I wish I had a nickel for every leakin poppet valve or failed pressure regulator (spider) I've seen on a Vortec. If I did I'd buy a fleet of Infinities. As one pro to another. Swap it out buddy.   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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