Jerking/jumping at 40-60mph
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Jerking/jumping at 40-60mph
Just purchased a 2001 Ford F150 super crew lariat v8 4.6/5.4 2v OAD at 156k miles, iv had no problems with it until I drove over the pass and after 2hours of driving my truck started to jerk when I accelerate between about 40-60mph. I don't experience any other problems over 60 it runs smoothly and in town under 40 it also runs smoothly, no check engine light. The next day is still continues to make a jerking motion, which feels like from the rear, I was wondering who else has had this experience and what they have done to fix it?
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Joined: Sep 2013
Posts: 1,348
Likes: 6
From: Edmonton, AB
My guess is that you are having a mild misfire. I would advise you to check your spark plus and Coil On Plug packs. Have the spark plugs been changed in it since you have owned it? If not I would change all the Spark Plugs and put in new ones if they havent been done.
If this is a mild misfire, sooner or later it may get worse and throw a Check Engine Light. I would think this is your issue. I had a misfire on my 02 5.4 and I only keep my plugs in for 50k I just changed them all and out in all new Coil On Plug packs.
Honestly it doesnt cost that much to do if you do the work yourself, you should be able to do the whole works fairly cheap. Might be a little more if you take it somewhere, You could just change the plug and cop pack on the one bad cylinder the misfire is on, but I would do them all then you dont have to worry about it again for a long long time
If this is a mild misfire, sooner or later it may get worse and throw a Check Engine Light. I would think this is your issue. I had a misfire on my 02 5.4 and I only keep my plugs in for 50k I just changed them all and out in all new Coil On Plug packs.
Honestly it doesnt cost that much to do if you do the work yourself, you should be able to do the whole works fairly cheap. Might be a little more if you take it somewhere, You could just change the plug and cop pack on the one bad cylinder the misfire is on, but I would do them all then you dont have to worry about it again for a long long time
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