6.4 runs but wont accelerate!!! Help please - Ford Powerstroke Diesel Forum
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post #1 of 4 Old 11-13-2012, 09:46 AM Thread Starter
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6.4 runs but wont accelerate!!! Help please

This is my first Ford and my first diesel and i love it! I drive a 2008 F250 Harley davidson Edition 6.4. Its completely stock and a daily driver. This morning on my way to work it was fine until i got close to work. As i started up a slight hill i noticed my truck slowing down. I gave it gas and nothing. At the top of the hill i came to a stop at the light. I took off and it seemed sluggish and did not accelerate as it should. Seems like it had no boost. I need help guys!!!!!!!!!!! Any ideas what it could be before i take it to the dealership?????????

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JCON
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post #2 of 4 Old 11-13-2012, 02:42 PM
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Could be several things but lets start with the basics. Tell us a little about the maintenance of the truck.

last oil /oil filter change?
OEM or after market filters?
last fuel filters change?
Coolant level or status?
Air filter status?
Any codes or CEL?

Nelson
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2005 Pontiac GTO (1 of 645) (LS2 6.0L, 6 speed manual / 3.46 gear) 39k miles
2007 F-250 XLT (6.0L, 2wd, 6 speed manual / 3.73 gear) 42k miles
2008 F-450 LARIAT (6.4L, 4x4, 6 speed manual / 4.88 gear) 38k miles
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post #3 of 4 Old 11-14-2012, 07:52 AM Thread Starter
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I change the oil regularly. I dont have any after market filters. I bought the truck a little over a year ago and the fuel filters were changed by the ford dealership before i bought it so they havent been changed in a little over a year. Coolant levels are good and checked last month. The air filter was changed a month ago as well. I did have the check engine light turn on the day before i had this problem and it shut off. I wasnt on more that a few hours. Yesterday when i drove home the truck was fine. Is it true that you should not get gas when the gas truck is filling the units at the store? i did and a few minutes later i had this problem.
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post #4 of 4 Old 11-14-2012, 11:04 AM Thread Starter
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I change the oil regularly. I dont have any after market filters. I bought the truck a little over a year ago and the fuel filters were changed by the ford dealership before i bought it so they havent been changed in a little over a year. Coolant levels are good and checked last month. The air filter was changed a month ago as well. I did have the check engine light turn on the day before i had this problem and it shut off. I wasnt on more that a few hours. Yesterday when i drove home the truck was fine. Is it true that you should not get gas when the gas truck is filling the units at the store? i did and a few minutes later i had this problem.
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