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Why does my truck's performance change so much?

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Old 03-06-2004 | 11:04 PM
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FastSS's Avatar
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From: Bloomington IN
Why does my truck's performance change so much?

So yea like the topic says

Aside from my tranny problems, I start it and its really loud and deep and its a lot faster than normal... sometimes its quieter and more raspy and slow as hell

Im talking probably a good 2 second difference over a 1/4 mile

whats the deal with that? any ideas?
Old 03-07-2004 | 12:16 AM
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How do you mean alot faster than normal, are you talking about the idle speed?

Need a bit more info on exactly what its doing.

Jason
Old 03-07-2004 | 01:54 AM
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Performance wise is what he's talking about. I know what you mean. Some days, mine's real authorative sounding and runs like a scalded dog. Other days, I've been mistaken for a ricer and the truck can't hardly get out of it's own way.
Old 03-07-2004 | 08:47 AM
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Yup.. I've noticed it, too. Think it's time to replace some filters and give the beast a little TLC.
Old 03-07-2004 | 10:11 AM
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Mine does the same thing, and I do my filters on the 5-10-20 schedule. If is just like some women, sometimes they want to perform, and other times they are "If you want too, I guess".
Old 03-07-2004 | 05:51 PM
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Originally posted by firestorm
If is just like some women, sometimes they want to perform, and other times they are "If you want too, I guess".

HAHA, you hit it right on the spot!!!
Old 03-07-2004 | 08:07 PM
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From: Frankfort, Ky.
Ambiet Temp.
Humidity.
Fuel
Fuel Filters
Will make a BIG diff. in preformance.

: Eddie :
Old 03-07-2004 | 08:55 PM
  #8  
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I dont think this is just a 24vavle issue. Im no diesel expert, but Ive noticed the same thing on my daily driver (95 12valve). Ive also noticed it on both Pete's that Ive worked on.

Id believe that it was a combination of atmosphere (air temps, humidity, etc) and the quality of the fuel.
Perhaps even how the fuel is affected by atmospheric conditions.

Im just guessing, I dont have an answer, but these trucks do have on and off days.

Rich
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