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88posdak
Dodge Dakota
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3/02/2006
12:46:35
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 Subject: Gen1 POS problems
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Message:
Just the facts maam '88 V6 4x4 5spd DAK is allergic to repair, it
backfires, has no power, eats gas, no check engine light or codes
have replaced: fuel pump, fuel filter, MAP, O2 sensor, EGR valve &
transducer, plugs, wires, cap/rotor, checked for loose ring in
distributor cut the exhaust in front of the cat i've ran out of
possibilities
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Dan M
Dodge Dakota
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3/02/2006
13:25:12
|  RE: Gen1 POS problems
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Message:
may sound stupid, but what about the coolant temp sensor? I ran into that once with my old 95 CC 4x4 3.9L auto. would backfire. Had a shop scan it and they could not find anything wrong. I noticed the temp guage would fluctuate, replaced the temp sensor, no more backfiring.
I'm assuming that since you replaced map and egr, you checked the vacuum? could also be crankshaft position sensor.
The PCM reads pretty much most of the sensors to adjust the air/fuel ratio.
- Dan M
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88posdak
Dodge Dakota
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3/02/2006
13:38:46
| RE: Gen1 POS problems
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Message:
didn't think the TBI 3.9 pre-magnum engines had crank sensors
according to my scanner the coolant sensor is working in fact
according to scanner even the parts i replaced were functional tried
the old throw $$ at the problem trick and haven't gotten anywhere
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Scott C.
Dodge Dakota
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3/02/2006
17:18:24
| RE: Gen1 POS problems
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Message:
crank sensor is also known as cam sensor and that is located all in the distributor.... you could have a bad coolant temp sensor and or a bad TPS on the throttle body.... it aslo possible that your ignition coil could be breaking down.... and possible that you could have a bad fuel pressure regulator
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