Rough Idle

Asked by Chris Feb 01, 2019 at 04:11 PM about the 2003 Dodge RAM 1500 ST RWD

Question type: Maintenance & Repair

We have a 2003 Dodge Ram 1500 2 wheel drive single cab 5.7 litre Hemi
just replaced the computer and after market Throttle Body and it idles rough,
the RPM go up and down....Old computer was frying coils and truck was
losing power would have to pull over, shut if off and re-start it and it would go
again for a while, this is been going on for over a month and the mechanic
cannot figure it out, we replaced the Trottle Body as it was bad with an
aftermarket one, Dodge dealer told me sometimes the computer will not
accept a aftermarket one...any suggestions???

1 Answer

The idle jumping up and down is your throttle position sensor it running rough when you have to shut it off and restart it will be your lock up solenoid in your transmission

Your Answer:

CarGurus Experts

  • #1
    Dan Connell
    Reputation
    19,900
  • #2
    dandyoun
    Reputation
    15,170
  • #3
    Gene Arnett
    Reputation
    11,710
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Ford F-150
311 Great Deals out of 13,911 listings starting at $3,888
Used Chevrolet Silverado 1500
179 Great Deals out of 7,272 listings starting at $6,995
Used GMC Sierra 1500
146 Great Deals out of 8,031 listings starting at $4,944
Used Dodge RAM 2500
4 Great Deals out of 31 listings starting at $7,900
Used Toyota Tundra
32 Great Deals out of 949 listings starting at $10,698
Used Toyota Tacoma
43 Great Deals out of 861 listings starting at $9,975
Used Chevrolet Silverado 2500HD
33 Great Deals out of 1,547 listings starting at $5,990
Used Dodge Durango
54 Great Deals out of 1,846 listings starting at $9,998
Used Ford F-250 Super Duty
28 Great Deals out of 783 listings starting at $9,995
Used Jeep Grand Cherokee
121 Great Deals out of 3,800 listings starting at $4,999
Used Ford Mustang
46 Great Deals out of 1,634 listings starting at $5,999

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.