Missing at speed
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Missing at speed
Hi guys. 
Ok..so here's what's going on. I sure hope someone van help me figure out what's wrong. I have a 2003 Ford F-150 with the V6. I've noticed the past couple days that. ..When at hiway speeds it's starts jerking really badly. It seems to only do it when it's under a load. It idles perfectly. Anything above 50 MPH and this rough jerking starts. I should also mention that when it's doing this if I push the accelerator hard it stops but as soon as I let off the pedal it starts again. Any ideas? Oh, and it did flash the check engine soon light but as soon as I slowed it went off and now the guys at auto zone can't find a code to read. Thanks in advance. Any and all help is much appreciated.
Ok..so here's what's going on. I sure hope someone van help me figure out what's wrong. I have a 2003 Ford F-150 with the V6. I've noticed the past couple days that. ..When at hiway speeds it's starts jerking really badly. It seems to only do it when it's under a load. It idles perfectly. Anything above 50 MPH and this rough jerking starts. I should also mention that when it's doing this if I push the accelerator hard it stops but as soon as I let off the pedal it starts again. Any ideas? Oh, and it did flash the check engine soon light but as soon as I slowed it went off and now the guys at auto zone can't find a code to read. Thanks in advance. Any and all help is much appreciated.
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JstoneF150
2004 - 2008 F150
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Feb 19, 2015 08:57 AM
RNR121909
2004 - 2008 F150
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Aug 15, 2012 11:09 AM
