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98 dodge ram 1500 high idle
08-07-2009, 03:42 PM
Post: #1
 
i have a 98 dodge ram 5.9 and last night i went to start it and the negative battery cable was lose and now power i tightened it down and went to start it and the truck had a high idle 2000 rpm so i drove it home and started to check stuff out and i know that the tps helps with the rpm so i unplugged it and it idle ok so the i plugged it back in still idle ok i took it for a test drive and drives fin but when i go to stop it sounds like it wants to die it idles at 500 rpm once at a stop goes back to normal 750 rpm i tested the tps harness and the constant volt side reads 5.17 volts and the throttle volts start at .16 volts and only get to 3.86 volt if any one can help i would appreciate it a lot and sorry for the long post




98 Dodge ram 1500 4x4 <BR>project truck<BR>4.88 gears lock right<BR>slight mods
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08-07-2009, 04:31 PM
Post: #2
 
Any check engine light?

Could be your IAC (Idle Air Control) motor/valve whatever it is.




-Jeremy (Jer)
1997 DODGE RAM 1500 4x4 - The Pig
D60/D70
37's on H2's

1996 DODGE RAM 2500 4x4
12v 5 Speed Quad Cab Long Box

1995 DODGE RAM 3500 2wd - Resto Project
360 V8, Auto
500,000km on the Original Engine/Trans

BUILT, NOT BOUGHT!
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08-07-2009, 05:30 PM
Post: #3
 
po123 code high current happened when i unplugged it and iac is brand new got it in jan or feb




98 Dodge ram 1500 4x4 <BR>project truck<BR>4.88 gears lock right<BR>slight mods
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08-08-2009, 11:41 AM
Post: #4
 
I'll have to double-check, but when I replaced my IAC valve, the only place it gets it's signal from is the computer. I would take that one back if you can, and swap it for another. Where did you buy it from?




On 2009-08-20 16:43, Chuckles wrote:
I would have deposited a large amount of uppercuts in that [censored]..

On 2009-08-27 15:09, heavymetalcowboy wrote:
You're not completely drunk until you have to hang on to the grass to keep from falling off the planet.
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