Idle trouble when cold

215

Asked by Jan 13, 2011 at 12:18 PM about the 2003 Dodge Dakota

Question type: Maintenance & Repair

Hey guys, with just a few more miles away from pushing the 150,000 mark, my 2003 3.9L dakota has thrown me a
curve ball. When it starts up on a cold morning, it starts, but idles very very low and fluctuates, occasionally
stalling. if you give it gas, it'll run fine until you take your foot off. in fact, that's how you get it to warm up quicker.
once the engine is just a little warm, it idles fine. If you turn it off then back on, it'll start up like it's brand new. I'm
at a loss of what's wrong. I'm guessing a sensor somewhere on the throttle body, but it doesnt explain why it runs
fine when it's warm. Any ideas would help.

7 Answers

195

Is it happening at any point on a tank of gas. Full, half, 1/4, under a 1/4?

2 out of 2 people think this is helpful.
215

happens at any point in time. I thought about water in the gas tank, and that's a good possibility. does water move to the top or bottom of gas, or does it mix?

195

I was thinking it could be your fuel pressure regulator. Mine does the same thing. Idles extremely rough and sometimes dies when I stop and I know my regulator is going.

2 out of 2 people think this is helpful.
4,395

get the idling checked on ur dakota. and also the fuel pressure pump might need replacement. http://dodge-dakota.org/2002-pictures/

195

Has it goten any better? I got to thinking it could just be the cold, now that the sub zero temperatures have stopped my trucks been running good.. So it very well might just be the cold

215

I'm thinking it's just new spark plugs. I put 93 gas in it and now it runs like a champ. I'm not the original owner, and I can't tell you when the last time those were replaced. I may drop a 5.2 in come summertime, that should fix any issues with the engine running rough =P

195

Haha yeah I'd think so!!

Your Answer

Add photo

Related Questions

  • Rough engine idle 25 answers

    Has anyone had this problem with their dodge 3.9L. I'll be driving at cruise speed and I can feel my truck chug, RPM's fluctuate, then goes back to normal. But continuously happens. I had the trucks f...

    2001 Dodge Dakota 2 Dr Sport Standard Cab SB

    -

    Maintenance & Repair

  • What engine part do I need run diagnostic code came back with p0507 idle speed performance higher than expected 2 answers

    Vehicle idles High when cold and runs rough

    2007 Dodge Dakota ST Quad Cab 4WD

    -

    Maintenance & Repair

  • idle air control valve 12 answers

    location for the idle air control valve

    1998 Dodge Dakota

    -

    Maintenance & Repair

  • truck idles crazy and misfires 3 answers

    my 93 dodge dakota is acting weird, ive made other posts but i cant find them. this is for anyone who can help (judge roy) helped last time i think. my truck idles hard checking the iac tomorrow, ju...

    1993 Dodge Dakota 2 Dr LE Standard Cab SB

    -

    Maintenance & Repair

  • cold start trouble 1 answer

    I have a 1995 b2500 Dodge Van with a 5.2 engine. The first thing in the morning my van will not start unless I leave the key in the on position for about 30 seconds, then starts fine. What will cause ...

    1995 Dodge Ram Van 3 Dr 2500 Cargo Van

    -

    Maintenance & Repair

Dakota

Looking for a Used Dakota in your area?

CarGurus has 4,297 nationwide Dakota listings starting at $1,495.

ZIP:

Search Dodge Dakota Questions

Dodge Dakota Experts

#1 banana
banana
Reputation 1,000
#1 Samantha Brown
Samantha Brown
Reputation 1,000
#3 Snidely
Snidely
Reputation 850
View All

Related Models For Sale

Used Dodge Ram 1500
531 Great Deals out of 12,827 listings starting at $1,995
Used Ford F-150
2,700 Great Deals out of 212,349 listings starting at $1,000
Used Toyota Tacoma
614 Great Deals out of 35,124 listings starting at $2,155
Used Chevrolet Colorado
263 Great Deals out of 19,418 listings starting at $1,995
Used Chevrolet Silverado 1500
2,284 Great Deals out of 155,168 listings starting at $1,395
Used Ford Ranger
204 Great Deals out of 6,719 listings starting at $1,450
Used Nissan Frontier
431 Great Deals out of 24,034 listings starting at $1,900
Used Chevrolet S-10
10 Great Deals out of 1,656 listings starting at $2,450
Used GMC Sierra 1500
938 Great Deals out of 62,274 listings starting at $1,395
Used GMC Canyon
100 Great Deals out of 7,702 listings starting at $2,500
Used Dodge Durango
299 Great Deals out of 24,117 listings starting at $1,500
Used Toyota Tundra
582 Great Deals out of 30,721 listings starting at $2,637
Used Dodge Ram 2500
152 Great Deals out of 5,500 listings starting at $2,500

Used Cars For Sale

2010 Dodge Dakota For Sale
7 Great Deals out of 118 listings starting at $5,499
2009 Dodge Dakota For Sale
5 Great Deals out of 81 listings starting at $7,015
2008 Dodge Dakota For Sale
16 Great Deals out of 315 listings starting at $4,595
2007 Dodge Dakota For Sale
16 Great Deals out of 373 listings starting at $3,400
2006 Dodge Dakota For Sale
28 Great Deals out of 671 listings starting at $1,500