Idle trouble when cold

Ted Weaver

Asked by Ted 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

Tyler VanEps

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.
Ted Weaver

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?

Tyler VanEps

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.

1 out of 1 people think this is helpful.

get the idling checked on ur dakota. and also the fuel pressure pump might need replacement.

Tyler VanEps

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

Ted Weaver

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

Tyler VanEps

Haha yeah I'd think so!!

Your Answer

Add photo

Related Questions

  • Rough engine idle 17 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

  • 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

  • dodge dakota idling and dying 45 answers

    My dakota will start then idle down and die. I can pump the gas and it will stay running but if i hold the peddle down or let off it will die. I have replaced the fuel pump, fuel filter, and the idl...

    1994 Dodge Dakota 2 Dr STD Extended 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

Looking for a Used Dakota in your area?
CarGurus has 3,959 nationwide Dakota listings starting at $200.

Search Dodge Dakota Questions

Dodge Dakota Experts

#1 banana
Reputation 750
#2 Snidely
Reputation 690
#3 Justin Doucette
Justin Doucette
Reputation 660
View All

Related Models For Sale

Used Dodge Ram Pickup 1500"
662 Great Deals out of 12,833 listings starting at $1,500
Used Ford F-150"
2,635 Great Deals out of 160,762 listings starting at $1,299
Used Toyota Tacoma"
497 Great Deals out of 17,306 listings starting at $1,999
Used Chevrolet Colorado"
249 Great Deals out of 12,879 listings starting at $1,995
Used Ford Ranger"
252 Great Deals out of 6,525 listings starting at $795
Used Chevrolet Silverado 1500"
1,952 Great Deals out of 136,545 listings starting at $999
Used Nissan Frontier"
287 Great Deals out of 10,432 listings starting at $1,991
Used Chevrolet S-10"
33 Great Deals out of 1,627 listings starting at $399
Used GMC Canyon"
87 Great Deals out of 7,104 listings starting at $3,500
Used Toyota Tundra"
509 Great Deals out of 16,055 listings starting at $2,600
Used GMC Sierra 1500"
859 Great Deals out of 61,340 listings starting at $1,000
Used Dodge Durango"
321 Great Deals out of 22,179 listings starting at $700
Used Ford Explorer Sport Trac"
82 Great Deals out of 1,810 listings starting at $2,295
Used Jeep Wrangler"
607 Great Deals out of 43,071 listings starting at $3,000
Used Dodge Ram Pickup 2500"
243 Great Deals out of 5,181 listings starting at $2,395

Used Cars For Sale

2010 Dodge Dakota For Sale
11 Great Deals out of 132 listings starting at $9,480
2009 Dodge Dakota For Sale
5 Great Deals out of 54 listings starting at $7,800
2008 Dodge Dakota For Sale
16 Great Deals out of 318 listings starting at $5,500
2007 Dodge Dakota For Sale
14 Great Deals out of 324 listings starting at $3,995
2006 Dodge Dakota For Sale
35 Great Deals out of 505 listings starting at $2,995