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00:14:17 - 12/20/2024
General Dakota Board
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Joe E.
Dodge Dakota
JOIN HERE
5/12/2002
13:38:38
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 Subject: Help... low idle problem
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Message:
OK, heres the problem. My truck, a 1990 3.9L 2wd auto, runs great at normal driving speeds. Purs like a kitten. And with my 3.9L, a very small kitten. But as soon as I come up to a stop sign or have to slow way down, at 1000 rpm and less, my truck wants to die. It NEVER shuts off, but it sputters like its gonna. As soon as I give it gas and raise RPMs, it runs like that small kitten again. Does this all the time too, not just at warm up temps. Thanks for the help and advice and what to look into.
Joe E.
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joe_himself
Dodge Dakota
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5/12/2002
13:49:13
| RE: Help... low idle problem
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Message:
Not to familiar with the older daks like the one you have but on my dak it did the same thing wanted to stall all the time when comming to a stop or just idiling.. My problem was i needed to clean the TB.. after doing so it runs like it should.. maybe you should look into cleaning yours.. i beleive its a carb.. correct me if im wrong.. but cleaning your carb/tb may do the trick.
my 2 cents.
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Geoff
GenIII
5/12/2002
13:52:44
| RE: Help... low idle problem
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Message:
when my 2000 3.9L did that it turned out to be the O2 sensor fuse. took two days at the dealer to figure that out but i got a new O2 sensor as well as a new IAT sensor
Geoff
2000 3.9L RC Sport. Flame Red. 5-speed, 3.55, Airaid, Vortex Muffler, F&B 48mm TB, 180 T-Stat, Autolite 3923s, IAT Adjuster, Clear Corners, SS Grill Insert, JBA Plug Wires, Underdrive Crank Pulley. Hurst Shifter, Removed Clutch Fan, Sony CDX-MP450X MP3, JBA Headers
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Joe E.
Dodge Dakota
JOIN HERE
5/12/2002
13:59:33
| RE: Help... low idle problem
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Message:
Thanks guys. I will look into having my TB cleaned. Or maybe do it myself. That seems logical. Cuz when I am forcing gas into it, it runs great, but when gas is light, it runs rough. Or maybe injectors.
I will also look up that fuse. I have done the same as you Geoff, with tail light problems before. Went through all this trouble and foud it was a damn 20 AMP fuse. Thanks for the help.
Joe E.
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