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post #1 of 15 (permalink) Old 01-12-2013, 07:49 PM Thread Starter
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Ford mechanic question

I have a 2000 ford expedition 5.4 not running right. If you step on the gas quick at idle it will Give a slight hesitation and then rev up. While driving it sputters some but is really bad when it needs to down shift. I changed the fuel filter. Nothing. I cleaned the maf sensor. Nothing. I am not positive the maf sensor is good though. It had a lean code bank one and two which I cleared and they have not returned. Before I spend over 100 dollars for a maf sensor I thought I'd check here for ideas??? Thanks

Ralph O.
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post #2 of 15 (permalink) Old 01-12-2013, 07:57 PM
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Re: Ford mechanic question

most parts stores will scan it free before you buy any parts

NRA,UBP,DU,DELTA

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post #3 of 15 (permalink) Old 01-12-2013, 08:09 PM
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Re: Ford mechanic question

possible TPS problem
http://easyautodiagnostics.com/ford_...nose_tps_1.php
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post #4 of 15 (permalink) Old 01-12-2013, 08:32 PM
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Re: Ford mechanic question

Clean the throttle body out good with a toothbrush and throttle body cleaner............

between that and the MAF sensor would be my guess.......

You didn't happen to change the battery in it recently did you?

"Most people miss opportunity because it comes dressed in overalls, and looks like hard work"
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post #5 of 15 (permalink) Old 01-12-2013, 08:33 PM Thread Starter
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Re: Ford mechanic question

2011/2012 winter changed the battery.

I scanned it for codes

Ralph O.
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post #6 of 15 (permalink) Old 01-12-2013, 09:17 PM
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Re: Ford mechanic question

check the vacuum lines , I know on the ford explorers they have a plastic elbow on one of the vacuum lines that is known to crack but I dont know if the expedition have that or not
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post #7 of 15 (permalink) Old 01-12-2013, 10:40 PM
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Re: Ford mechanic question

Not sure if the 2000 have these or not, but a friend of mine had some issues like this and it was two of the individual coil packs at the plugs.

Don't take yourself so seriously.......no one else does....
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post #8 of 15 (permalink) Old 01-13-2013, 08:54 PM
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Re: Ford mechanic question

Quote:
Originally Posted by trado
2011/2012 winter changed the battery.

I scanned it for codes
OK, try cleaning the MAF and the throttle body good.........it seems that these new vehicles with computers will train themselves to run "dirty" over time.......when you change the battery, it resets the computer, and it thinks that it is dealing with a 100% clean engine......cleaning the MAF and throttle body good should take care of the problem

I had the same problem with my truck this spring.....I changed the battery out, it would idle, and accelerate, but as soon as you let off of the accelerator it would shut down.......it was also starved for power a little.......but I cleaned the MAF and throttle body out, and it took care of the problem.....

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post #9 of 15 (permalink) Old 01-13-2013, 10:32 PM Thread Starter
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Re: Ford mechanic question

I cleaned the maf with contact cleaner with no change. I do not believe it is the coil packs I replace one of them before but this is not really a misfire.

Ralph O.
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post #10 of 15 (permalink) Old 01-13-2013, 10:33 PM
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Re: Ford mechanic question

The best way to fix that is to
Take the Ford to a scrapyard
Then buy a Chevy
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