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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   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... Brake Seals Bulging 2021 Toyota Corolla LE 1.8l 65,000 mile...

1990 Ford Thunderbird 3.8L Supercharged Sign up here! Search this forum this category all forums for All words Any words Whole Phrase (search options) Auto Repair Home>> Automotive Repair>> Engine Troubleshooting chubbard New User Oct 31, 2006, 3:28 PM Post #1 of 3 (2820 views) 1990 Ford Thunderbird 3.8L Supercharged Sign In I have a 1990 Ford Thunderbird that has an intermittent engine lope. After the engine warms up it starts this problem. I have taken it to two dealers, two independents, and a transmission shop. No one can identify the problem or even give an educated guess. Any ideas??? It sounds like a failing oxygen sensor to me, but nothing shows up on computer diagnostics. Tom Greenleaf Ultimate Carjunky / Moderator Oct 31, 2006, 3:36 PM Post #2 of 3 (2818 views) Re: 1990 Ford Thunderbird 3.8L Supercharged Sign In Guess 4U: Vacuum leak that would be covered up if minor when engine is cold as it's running richer until warm, T steve01832 Veteran Nov 1, 2006, 4:10 AM Post #3 of 3 (2817 views) Re: 1990 Ford Thunderbird 3.8L Supercharged Sign In The older Ford's are famous for this: Unplug the Mass Airflow Sensor connector, the coolant temp. sensor, the air temp. sensor, and the throttle position sensor. Check the inside of the connectors for a green or white corrosion. If you find this, clean out thoroughly and reconnect. Ford has had bad connections due to this problem for years. Also, if you have a scan tool, you can perform a "wiggle test" to check for broken wires and bad connections. Steve   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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