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Old 02-04-2016, 09:40 PM   #1
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Default 1995 F150 Hesitation

1995 F150 5.0L V8

Hesitates when accelerating and idles rough. I thought it could be my throttle position censor, but I changed that and nothing. I have also change spark-plugs/ wires/ distributor cap and rotor, IAC. Cleaned out the throttle body and put on a new gasket and still the problem persists.

My question is could this be a vacuum problem? EGR valve, vacuum reservoir (coffee can)?

Thanks for any response.
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Old 02-04-2016, 10:44 PM   #2
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Sounds like everything I've done in the past year to debug mine. Does it do this: At a steady acceleration, and you feel it bucking or hesitate, and you let off the gas, and then it stops and then gas it up again and it goes?
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Old 02-04-2016, 11:58 PM   #3
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Originally Posted by ericantonio View Post
Sounds like everything I've done in the past year to debug mine. Does it do this: At a steady acceleration, and you feel it bucking or hesitate, and you let off the gas, and then it stops and then gas it up again and it goes?
Once in a while that will be the case, but I usually have to step on the gas for it to go.
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Old Yesterday, 12:10 AM   #4
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Originally Posted by Snasbury View Post
Once in a while that will be the case, but I usually have to step on the gas for it to go.
Yeah I was easing off on the gas. Then my GF drove the truck and she told me what happened and she said "oh, I stepped on it go make it go!" So either one worked.

I've changed IAC, IC, plugs (twice, realized I wasn't gapped correctly for a long time), wires, EGR, O2sensor, distributor cap, rotor, cleaned the throttle good inside/outside, cleaned MAF, changed all the vacuum lines.

And what finally worked......with the help of the forum, was changing the distributor. YMMV though. It's a 70-100 buck fix if you want to spend that much but I pretty much gave the car a full tuneup in the process so I feel good about that.

It was driving me nuts!! I would go uphill and it would hesitate all the time. And I don't drive it knowing I have to drive on hills but now I'm super confident I can do it (tested it out on the hilliest roads in my area).
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Old Yesterday, 12:52 AM   #5
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If you haven't pulled any codes, do that. Plenty of smart people here to help you. I had an issue that a new PCM fixed.
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