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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   1989 toyota pickup 3.0 crank no start I have a 1989 toyota pickup 3.0 crank no...   Strut spring orientation and strut mount tension nut 2017 Nissan rogue awd 2.5 L Put in Monro...   Transmission stuck in part, I have tried everything So I'm working on my elderly fathers 201...   2017 dodge journey LED headlights on/off randomly Year of vehicle 2017 Make of vehicle dod...   Kia Soul starter replacement issues! Okay so my car is a 2010 Kia soul 2.0 en...   Please Help - Knock sound & engine fail Hi all, Hoping to get some insight and ...   multiple warning lights 2013 GMC Terrain 130,000 miles 4 cylinde...   03 alero no low speed blower Good day everyone, I have a 2003 Olds a...   04 Chevy 2500hd tail light issues Help!!! I have changed my combo switch...   1999 Grand Caravan Sport not starting. Hi. I'm new here. I hope someone can hel...

98, Chevy, 5.0, Silverado starts weird 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 skip2dale New User Apr 8, 2018, 12:59 PM Post #1 of 3 (1088 views) 98, Chevy, 5.0, Silverado starts weird Sign In When engine is cold starts instant I turn key, when warmed up cranks 4 or 5 times then rumbles to a slow start..changed plugs, wires, battery, fuel filter, cap and rotor, checked fuel pressure and shows right up to 55 psi then within 5 minutes it slowly drops to about 40 to 42 psi. Within 10 minutes it’s at 25 psi. Hammer Time Ultimate Carjunky / Moderator Apr 8, 2018, 2:34 PM Post #2 of 3 (1079 views) Re: 98, Chevy, 5.0, Silverado starts weird Sign In That fuel pressure drop could be leaking into the cylinders. If this is a Vortec, they are notorious for leaking fuel pressure regulators and spider injectors. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 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. Discretesignals Ultimate Carjunky / Moderator Apr 9, 2018, 7:53 AM Post #3 of 3 (1061 views) Re: 98, Chevy, 5.0, Silverado starts weird Sign In You can also install a fuel pressure shut off valve right after the fuel filter. Pressurize the system and see if the fuel pressure holds. That will take the fuel pump check valve out of the equation if it doesn't hold. Are there any trouble codes stored in the engine controller? Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.   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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