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Rev up but no acceleration

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Old 02-07-2011, 09:30 AM   #1
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Default Rev up but no acceleration

Hello everyone. i have a problem on a recent 06' F150 Lariat i purchased. While driving at 65 mph and wanting to pass a vehicle, i give it the gas and the engine revs up but little to no acceleration occurs. And if you give it too much gas, the check engine light starts to flicker. On the interstate it seems to drive just fine but when you go to pass it just like to rev up and no go. Now my check engine light stays on and it still does the same thing. What is my truck doing? Tranny, CAT, spark plug misfires.........
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Old 02-07-2011, 09:40 AM   #2
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Go get the code checked and it will tell you what is going on.
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Old 02-07-2011, 11:48 AM   #3
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Its gonna have to get a laptop plugged in to read codes and test drive. It wil show up exactly what is going wrong on the screen as it is doing it. Without knowing the code it could be a lot of things.
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Old 02-10-2011, 09:06 AM   #4
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took it to get the comp. read. turned out to be #3 ignition coil bad. replaced coil and seems to run better but still has some power issues. should i unplug the positive terminal to reset the comp? maybe the timing is still off?
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Old 02-10-2011, 09:50 AM   #5
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You can reset the ECU by taking the negative cable off for a while, won't hurt anything but not guaranteed to help either. This isn't a points ignition system where timing can get "off". If you feel like it's still lacking, start doing maintenance like cleaning the MAF and throttle body.
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Old 02-18-2011, 10:52 AM   #6
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ok guys. heres the reason for no acceleration....and from the looks of it, its quite an obvious problem for F150's. The catalytic convertor, right bank, was clogged. And for some of yall out there that did not know this, the cat's are covered under a EPA warranty of 80,000 miles or 8 yrs which ever comes first, regardless of ownership! So when i found this out i visited the local dealership and he confirmed it and is going to replace both cats free of charge. Yee haw!
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Old 02-18-2011, 11:20 AM   #7
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Quote:
Originally Posted by Diddy_Kong
ok guys. heres the reason for no acceleration....and from the looks of it, its quite an obvious problem for F150's. The catalytic convertor, right bank, was clogged. And for some of yall out there that did not know this, the cat's are covered under a EPA warranty of 80,000 miles or 8 yrs which ever comes first, regardless of ownership! So when i found this out i visited the local dealership and he confirmed it and is going to replace both cats free of charge. Yee haw!
SCORE! Lol
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