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97 chevy no power under acceleration Sign up here! Search this forum this category all forums for All words Any words Whole Phrase (search options) Auto Repair Home>> Truck Repair>> Truck Repair Advice jimmy2f New User Oct 30, 2006, 1:39 PM Post #1 of 3 (6522 views) 97 chevy no power under acceleration Sign In my 97 chevy 4x4 with a 5.7 liter and 135,000 miles. the engine has no power while accelerating. it spits and sputters. the engine idles great.even if i run the rpm up to redline in park it runs great. put it in gear and give it some gas and it sputters out. i was getting engine light for O2 sensors i replaced all four of them. no change. i replaced the fuel pressure regulator. no change. i replaced all plugs wires cap and rotor. no change. the longer i drive it the worse it gets, like its loading up. to the point that i can only go about 5 mph. i can shut it off and let it cool and it starts all over. i thought it may be the catalytic convertors but it idles to smooth. could the replacement 02 sensors be bad? the next stop is the shop. i hope somebody can help me. THANKS way2old Veteran / Moderator Oct 30, 2006, 5:55 PM Post #2 of 3 (6520 views) Re: 97 chevy no power under acceleration Sign In I believe you are correct on the converters. You could drop the exhaust and see if power returns. If it does, replace the converter. Being way2old is why I need help from younger minds fordboy Novice Mar 22, 2008, 6:51 PM Post #3 of 3 (6204 views) Re: 97 chevy no power under acceleration Sign In maybe you have done this but try giving it a tune up   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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