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Old 04-03-2009, 08:41 PM   #1
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Default jerking problem at 40-50 mph

does anyone know why my 03 f150 jerks when im driving anywhere between 40-50 mph. it continues to jerks if I stay at that steady speed but stops as I start to accelarate..
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Old 04-03-2009, 10:56 PM   #2
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i have the same proplem with mine i cant figure out what it is either
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Old 04-04-2009, 06:55 AM   #3
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both trucks stock with no modifications?
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Old 04-04-2009, 08:20 AM   #4
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Can you explain jerking a little better... Is it steering, or wheels, or suspension...
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Old 04-04-2009, 02:05 PM   #5
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well everything on mine is stock now except for 33 nitto mud grapplers on my factory rims i had 20's and 35 but it didnt do it when they was on there and its like when your running around 45 or 50 and go to ease on it it feels like a slip or a jump of something i dont know if it is coming from the rear end or trannsmission but i would love to figure out what it is. It is getting worse
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Old 04-04-2009, 02:24 PM   #6
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Quote:
Originally Posted by tfarms View Post
well everything on mine is stock now except for 33 nitto mud grapplers on my factory rims i had 20's and 35 but it didnt do it when they was on there and its like when your running around 45 or 50 and go to ease on it it feels like a slip or a jump of something i dont know if it is coming from the rear end or trannsmission but i would love to figure out what it is. It is getting worse
Does it have a rhythm or is it just random...
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Old 04-04-2009, 09:01 PM   #7
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yeah mine has a rythm to it and if i turn the overdrive off it quits do you think it is something to do with the tranny or rear diff?
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Old 04-04-2009, 11:37 PM   #8
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i just have tires/rims and exhaust. it does jerk in a rhythm and continues to do so untill I accelarat or ease off the gas.. i just had my trans serviced a few weeks ago too, but the problem is still here..
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Old 04-06-2009, 01:38 PM   #9
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I had the same problem with mine and I had gotten water in my coils and i had a couple of coils and spark plugs that i replaced and everything is fine now.
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Old 04-06-2009, 02:47 PM   #10
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i had same problem and it was that the injectors were cloged so i put in the high rated fuel for like 2 weeks and its been fine or you could by some cleaner at walmart
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Old 04-06-2009, 02:47 PM
 
 
 
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