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herby
Dodge Dakota
JOIN HERE
11/11/2003
22:40:31
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 Subject: 87 3.9 runs ruff
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Message:
I have an 87 dakota with a 3.9 ltr. auto . When the truck is warm it runs great , but if it is cold and damp it stumbles real bad . I have rebuilt the carb installed new wires plugs cap and rotor as well as plugs .It has a new fuel filter and pump. I was told the carb was freezing up but I even wrapped the bottom of the carb with insulation. I just changed the ox sensor and I am at a loss . Any ideas ?
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J and J Auto
GenII
11/12/2003
03:06:16
| RE: 87 3.9 runs ruff
IP: Logged
Message:
Take a look at your EGR system
Larry
J&J Auto
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Trav
Dodge Dakota
JOIN HERE
11/12/2003
13:19:29
| RE: 87 3.9 runs ruff
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Message:
I have an 87 that does almost the same thing but it doesn't run ruff it just sounds like the water pump is running fast (it makes a loud blowing sound)but when it gets warm it runs regular. I have had the new water pump for 30,783 miles.
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herby
Dodge Dakota
JOIN HERE
11/13/2003
19:28:31
| RE: 87 3.9 runs ruff
IP: Logged
Message:
Replaced egr checked hoses upgraded to hotter plugs still running terrible when wet and cold . Could it be a timeing advancement via the computer to the distributor and the carb.
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J and J Auto
GenII
11/13/2003
20:37:04
| RE: 87 3.9 runs ruff
IP: Logged
Message:
Could be a lot of things
carbon traked cap
bad plugs
bad wires
bad coil
bad sensor
bad O2
low fuel presure during cold start
You just need to track it down
Larry
J&J Auto
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ron
Dodge Dakota
JOIN HERE
11/15/2003
18:28:46
|  RE: 87 3.9 runs ruff
IP: Logged
Message:
Check your battery gauage before you staet the truck. If its low that might be the problem
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