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Old February 7th, 2012, 06:05 PM   #1
t buff
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03 24valve idle issue

I have a 24v cummins in an 03 3500 Ram. It has a rough idle. It dosent smoke at all.
Statrs easy.
After it stumbles it recovers real fast.

It just started doing this with in the last few weeks. The idle does not rise in park anymore either. No other problems. Just a rough idle spot ANY IDEAS?

I changed the tp sensor the other day and it does the same thing. Any help would be greatly appreciated

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Old February 7th, 2012, 06:16 PM   #2
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is it a 02 or 03? completely different motors.
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Old February 7th, 2012, 06:20 PM   #3
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03 thats y i put 03
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Old February 7th, 2012, 06:21 PM   #4
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03's arent referred to as a 24v thats why i asked. thats a common rail engine. but it sounds like you have a crank sensor going out
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Old February 7th, 2012, 06:30 PM   #5
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Ok. And the crank sensor would make it not idle high in park?
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Old February 7th, 2012, 06:37 PM   #6
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crank sensors will do funny things. think about what a crank sensors job is to do. when mine was going bad i would come off the highway and it would lope till it caught its idle again around 1200 or so or till when i got back on the pedal. had a rough idle in park as well.
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Old February 7th, 2012, 06:41 PM   #7
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Cool thanks for the help. If that
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Old February 7th, 2012, 06:41 PM   #8
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If that dont do the trick ill let you know
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Old February 7th, 2012, 06:45 PM   #9
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when was the last time the fuel filter was changed as well? do you keep up on your maintenance?

is it throwing any codes at all?
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Old February 7th, 2012, 06:56 PM   #10
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no codes. i changed it a few weeks ago and again today
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