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RobH
Dodge Dakota
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4/23/2006
22:58:27
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 Subject: '01 3.9 Dakota-Startig/idle problem
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Howdy all,
I am still having some strange problems with my 3.9 01 Dakota. I will say
take a half hour trip to the store,it runs great,go in for 30 min,come back
out start it up and begin to drive out of the parking lot and it seems like
the idle goes high and low,back and forth,like its revving high and then
dropping down,at times in reverse it will stall out.
Another thing i notice is durign the same situation above,when i go back and
try to start,i will turn the key and crank for say 4-5 seconds and it wont
start,stop for a second then hit the key again and it fires right up.
I had an oldsmobile that sort of did this and the problem was a mass airflow
sensor.
Anyone have any ideas what my problem might be? I just changed all the wires
and plugs,air filter and pcv valve,thinking these would fix the problem but
they didnt
Thanks
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Scott C.
Dodge Dakota
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4/24/2006
19:36:11
| RE: '01 3.9 Dakota-Startig/idle problem
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Message:
sounds like ya got a bad IAC Valve.... that allows the engine to idle when the accelerater isnt depressed.... its possible that its sticking once it gets hot.... or you could have a bad cam/crank sensor that is acting up causeing it to start and not start at times....
Scott C.
Royal Auto
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RobH
Dodge Dakota
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4/25/2006
00:17:54
| RE: '01 3.9 Dakota-Startig/idle problem
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Message:
Thanks so much for your reply.If one of those things were bad,would i get a check engine light?
Second question,how can i check the IAC? Are they expensive to replace? Where is it at?
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sled
Dodge Dakota
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4/28/2006
01:19:09
| RE: '01 3.9 Dakota-Startig/idle problem
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Message:
I had the same problem... It was the IAC controller, located on the firewall side of the throttle body, it is easily removed with 2 torque screws. Clean it up and the problem should go away. It only took me 15 min to do.
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RobH
Dodge Dakota
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4/28/2006
12:25:49
| RE: '01 3.9 Dakota-Startig/idle problem
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I cleaned it yesterday and the whole end of the rod was coated with this thick black goo,took 10 min of carb cleaner spraying to get it clean. I sure hope this does it.
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J and J Auto
GenII
5/02/2006
05:18:30
| RE: '01 3.9 Dakota-Startig/idle problem
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Message:
go figure all the obd2 just turn the IAC black
my obd1's stay clean
starving for gas will also cause some of those
symtoms check the fuel presure
Larry
J&J Auto
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Tara
Dodge Dakota
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3/21/2009
17:49:42
|  RE: '02 3.9 Dakota-Startig/idle problem
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Message:
I have an '02 Dodge Dakota SLT. It is idling high even when not touching the gas pedal. Have replaced the throttle position sensor and one other sensor but not fixing problem. Also, loses ALL power when going up a hill. HELP!!!
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Da Bumper
Dodge Dakota
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4/07/2009
15:03:28
| RE: '01 3.9 Dakota-Startig/idle problem
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Message:
Bump
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Da Bumper
Dodge Dakota
JOIN HERE
4/08/2009
22:06:20
| RE: '01 3.9 Dakota-Startig/idle problem
IP: Logged
Message:
Bump
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