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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   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 ...   2020 suburban new transmission and issues after install recently had the transmission fail at 11...   Caliper piston post cleaning won't screw in Hello, 2013 Hyundai Elantra limited (ma...

Search Auto Parts Search random miss between 45 and 50 mph 2000 grand marquis Sign up here!   Email This Post Auto Repair Home>> Automotive Repair>> Engine ODB2 Fault Codes MR FIX IT New User May 1, 2011, 10:19 AM Post #1 of 3 (3649 views) random miss between 45 and 50 mph 2000 grand marquis Sign In 2000 Mercury Grand Marquise 4.6 with 125,000 miles. Had a random miss between 45 and 50 mph I say had because when the check engine light came on the miss went away! Before the check engine light came on I had Replaced all the Coil overs and plugs, EGR valve, TPS, DPFE sensor, crank position sensor, checked all oxygen sensor, and miss remained. Engine made a popping sound and check engine light came on, the engine runs without miss now but is showing a P0401 code. I know it is in the emissions system just do not know how to correct problem with out the miss coming back. Any one had this problem? Hammer Time Ultimate Carjunky / Moderator May 1, 2011, 12:12 PM Post #2 of 3 (3639 views) Re: random miss between 45 and 50 mph 2000 grand marquis Sign In That is either a bad DPFE sensor or a plugged up EGR passage in the throttle body. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 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. MR FIX IT New User May 1, 2011, 1:56 PM Post #3 of 3 (3634 views) Re: random miss between 45 and 50 mph 2000 grand marquis Sign In Thanks for the information! Appreciate the help.   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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