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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   Drive Shaft Repair I have a 2015 Chevy Traverse AWD. The fr...   2006 Toyoto Camry XLE Driver Side Electric Window Trouble Hello, Looking for a little brain help ...   Tierod end change caused some kind of leak Hello so I just took my car to the nearb...   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...

Search Auto Parts Search Explorer bucking at certain rpms. Sign up here!   Email This Post Auto Repair Home>> Automotive Repair>> Engine Troubleshooting cavedweller3366 New User Sep 3, 2010, 2:29 PM Post #1 of 4 (1372 views) Explorer bucking at certain rpms. Sign In I have a 2000 Ford Explorer, 4.0 V6, SOHC, with 109,000 mi. 2 weeks ago, my thermostat froze closed. I didn't go as far as overheating that much...got lucky, caught it, and changed it. Truck ran like crap ever since. From the moment I buttoned it up, motor bucks at certain rpms (1600-2100) or when trying to climb a hill or pass another vehicle. I checked the air box/hose, redid all I did when i changed the thermostat, changed the AIC and MAFS. The plugs are new, the oil is new, the throttle body is clean. I just recently got a check engine light, but attribute that to the locking gas cap I just bought....I smell gas. Please help me so I don't go broke. :) Thank you so much for your time. Hammer Time Ultimate Carjunky / Moderator Sep 3, 2010, 2:33 PM Post #2 of 4 (1362 views) Re: Explorer bucking at certain rpms. Sign In Have you actually read the stored code? ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 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. cavedweller3366 New User Sep 4, 2010, 3:57 AM Post #3 of 4 (1354 views) Re: Explorer bucking at certain rpms. Sign In Yes, the code is an occassional P0442, Evap Sys Leak (small)....that is how it is worded on the OBDII. I started getting that code after I put an aftermarket locking gas cap on. I do get a fuel smell back of the truck. Thank you for your reply and inquiry. :) I appreciate any help I can get. Hammer Time Ultimate Carjunky / Moderator Sep 4, 2010, 4:37 AM Post #4 of 4 (1351 views) Re: Explorer bucking at certain rpms. Sign In It sounds like you haven't checked it since this problem started and are assuming it's only the same code. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 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.   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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