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F150 jerking while driving
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Brian51
New User
Apr 10, 2011, 10:00 AM
Post #1 of 7
(6777 views)
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F150 jerking while driving
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I have a 1989 Ford F150 with a 300 6 cylinder, it has about 90 thousand miles on it. Lately it has a problem with jerking and bucking while I'm driving. I think it's a sensor problem and not the transmission. It starts and idles okay. I haven't changed anything in a good while. I did install a IAT several years ago.
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way2old
Veteran
/ Moderator
Apr 10, 2011, 4:29 PM
Post #2 of 7
(6748 views)
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Re: F150 jerking while driving
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I guess the first thing I would suggest is possibly a tune up including all filters.
Being way2old is why I need help from younger minds
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Brian51
New User
Apr 11, 2011, 9:33 AM
Post #3 of 7
(6714 views)
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Re: F150 jerking while driving
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It has been tuned and all filters changed. I read that the thermostat could be the problem, if it's stuck open. It causes the engine to run rich because it never warms up enough. I changed the thermostat yesterday and the truck seems to be running fine, but the weather has also warmed up. I guess I'll have to wait and see. Thanks
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techforfree
User
Apr 13, 2011, 9:57 AM
Post #4 of 7
(6693 views)
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Re: F150 jerking while driving
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Stay away from the thermastat & sensors..likely a set of plugwires will cure the problem.
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Brian51
New User
Apr 16, 2011, 1:59 PM
Post #5 of 7
(6677 views)
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Re: F150 jerking while driving
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Plugs and wires are new. The weather turned a little cooler in the mornings. It's jerking some but not like it was. I think maybe the MAPP sensor.
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Hammer Time
Ultimate Carjunky
/ Moderator
Apr 16, 2011, 2:46 PM
Post #6 of 7
(6672 views)
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Re: F150 jerking while driving
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If you think you already know what the problem is and you disagree with the opinions you get, why are you asking us?
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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.
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
Apr 17, 2011, 2:43 AM
Post #7 of 7
(6666 views)
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Re: F150 jerking while driving
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Sounds like a marital problem
Wrong site,
T
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