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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...

RUNS RUFF ON ACCELERATION 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 POLCAT New User Nov 19, 2010, 3:49 PM Post #1 of 5 (1431 views) RUNS RUFF ON ACCELERATION Sign In 2002 PONTIAC GRAND PRIX 3.1 190,000 RUNS RUFF AT ANY SPEED ON ACCELERATION PO404 OBD2 CODE Sidom Veteran / Moderator Nov 19, 2010, 7:37 PM Post #2 of 5 (1424 views) Re: RUNS RUFF ON ACCELERATION Sign In Pull the EGR valve and make sure there isn't a chunk of carbon stuck in the seat....... POLCAT New User Nov 19, 2010, 9:00 PM Post #3 of 5 (1408 views) Re: RUNS RUFF ON ACCELERATION Sign In NO CARBON STICKING THE VALVE OPEN , VALVE IS WHITE AND WHEN YOU PUSH THE VALVE DOWN YOU CAN SEE THE SEATING RING ON THE VALVE. SOME CARBON BUT VERY LITTLE TO HAVE 190,000 MILES ON THE CAR. Sidom Veteran / Moderator Nov 19, 2010, 9:14 PM Post #4 of 5 (1405 views) Re: RUNS RUFF ON ACCELERATION Sign In Well that makes it a little tougher... GM's are usually pretty good about setting misfires but they can also run like cr*p with out setting codes... I would almost have to see it and see the way it runs to have an idea of where I would start on this... About the only other suggestion I could offer would be to disconnect the MAF sensor and see how it runs. I've had a lot of these fail without coding and make the engine run like sh&t. POLCAT New User Nov 20, 2010, 1:32 PM Post #5 of 5 (1372 views) Re: RUNS RUFF ON ACCELERATION Sign In 2002 PONTIAC GP 3.1 190,000 RAN EVEN WORSE WITH MASS AIR FLOW SENSOR UNPLUGED. IDLES FINE, RUNS AT SAME SPEED FINE, ACCELLERATION BAD AT ANY SPEED. C , E , OH , EV AND YELLOW LIGHT FLASH ON CHEAP SCANNER.   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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