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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 (5959 views)
F150 jerking while driving Sign In

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.


way2old
Veteran / Moderator
way2old profile image

Apr 10, 2011, 4:29 PM

Post #2 of 7 (5930 views)
Re: F150 jerking while driving Sign In

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


Brian51
New User

Apr 11, 2011, 9:33 AM

Post #3 of 7 (5896 views)
Re: F150 jerking while driving Sign In

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


techforfree
User

Apr 13, 2011, 9:57 AM

Post #4 of 7 (5875 views)
Re: F150 jerking while driving Sign In

Stay away from the thermastat & sensors..likely a set of plugwires will cure the problem.


Brian51
New User

Apr 16, 2011, 1:59 PM

Post #5 of 7 (5859 views)
Re: F150 jerking while driving Sign In

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.


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Apr 16, 2011, 2:46 PM

Post #6 of 7 (5854 views)
Re: F150 jerking while driving Sign In

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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Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

Apr 17, 2011, 2:43 AM

Post #7 of 7 (5848 views)
Re: F150 jerking while driving Sign In

Sounds like a marital problemCrazy

Wrong site,

T







 
 
 






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