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23:12:11 - 12/19/2024
V6 Dakotas
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dcocuzzo
Dodge Dakota
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11/11/2007
20:38:13
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 Subject: 98 Dak 3.9- More new codes!!!
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OK- check engine light's back on- Did a "hard reset" as suggested; no change. Check engine light stays off for a few miles (10 to 20) then it's back on. Up to 7 codes, P0300 thru P0306- all misfire codes. Can be all, can be one, some are "pending". I did however notice something recently that has repeated itself now that it's colder here- the truck runs great at startup, but as it gets to temp it then stumbles quite a bit like it is way out of time (pinging, missing and farting) then clears up and runs fine- but the codes don't come on immediately thereafter. Any clues? I am confounded- It is almost as if it comes off of a "cold-circuit" setting and can't handle the transition- What sensor(s) would that point to- especially if I don't get a code for it??? Recall from my last post there's a new TPS, Crank Pos Sensor, cat, coil, dist cap/rotor, wires and plugs...
Thanks for all your help to date- this is great stuff!
Dave
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?
Dodge Dakota
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11/13/2007
14:02:28
|  RE: 98 Dak 3.9- More new codes!!!
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How about the 'temp' sensors - near the top rad hose connection to block - may be under your
A/C compressor if you have.
Also the Air Intake Temperature sensor
[ just to front of throttle body on Passenger side
of intake manifold ] ..
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dcocuzzo
Dodge Dakota
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11/20/2007
12:37:35
|  RE: 98 Dak 3.9- More new codes!!!
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Still having issues- now its colder (snowing today). I replaced the temp sensors as suggested (air charge and coolant temp)- no change. In fact, starts fine, runs OK, then it acts worse sooner- then it clears up and runs fine when up to temp. I now seem to be back to the start- now no misfire codes, just a pending P1391- cam or crank pos sensor code. Those parts have been replaced already!!! HELP! I am desperate and ready to take it to the dealer to find out whats wrong- there's nothing left to replace!!! Any ideas?
Thanks, Dave
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martom107
Dodge Dakota
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11/21/2007
10:25:55
|  RE: 98 Dak 3.9- More new codes!!!
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hi, i am in same situation as you, and i have almost change everything except the truck me too lol mine is a 2002, but for your problem, while looking for mine garage guy ask me if when cold truck is better? and he told me cause if yes might be the o2 sensor cause the o2 sensor don't work when the truck is cold, but when start to get warm a bit then they start there job... so might be your problem on here, hope it can help you.
Tom
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