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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...

1994 Caprice, 5.7 L Sign up here! Search this forum this category all forums for All words Any words Whole Phrase (search options) Auto Repair Home>> Automotive Repair>> Car Troubleshooting tpkfarms New User Jun 12, 2008, 6:27 PM Post #1 of 3 (3248 views) 1994 Caprice, 5.7 L Sign In Hi, I have trouble to identify the problem with my 1994 chevy caprice, 5.7L engine. Under load, after engine heated up: hesitate when accelerating, do not respond to rapid press on accelerator (feels like fuel starving) , when accelerating sometimes a back fire like noise, when cruising whenever load is increased (eg. slight up hill) feels like intermittent missing. The yellow light signal "engine need service soon" is not on, neither any other warning lights. Car starts, idle as well as rev up perfect under no load.. New spark plugs, air filter, and inline fuel filter. Fuel pressure normal and steady at idle and higher rpm's. (tested while the car is parked) Tried new MAF and MAP sensors, no improvement. Any idea?? Thanks, Thad dave284 Enthusiast / Moderator Jun 12, 2008, 8:37 PM Post #2 of 3 (3245 views) Re: 1994 Caprice, 5.7 L Sign In Thad, it could be a few things that came to mind.....water in the fuel/ vacuum leak at intake/ timing being off/ or a bad valve, try some injector cleaner, and do a vacuum test on the engine/ also check the timing. Double J Veteran / Moderator Jun 12, 2008, 11:08 PM Post #3 of 3 (3244 views) Re: 1994 Caprice, 5.7 L Sign In Spark plug wires an "break up" / misfire under a load.. Just an added thought. Jim (This post was edited by JIM N on Jun 12, 2008, 11:10 PM)   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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