Why does my 072007 hemi idle up while driving down the highway?

10

Asked by Jan 12, 2012 at 02:29 PM about the 2007 Dodge Ram 1500

Question type: Maintenance & Repair

Idles up 2 to 3 hundred more rpm's all by itself. Doesn't matter if cruise control is on, off,
or in use.

2 Answers

20

The hemi has MDS where it goes from 8cyl to 4 cyl or vice versa you probably don't feel it but see it on the tach, mine does it all the time

1 out of 1 people think this is helpful.
10

Dodge dealership said to clean the intake. It has been a little better since then but still does it. I can definitely feel it when it does it. Feels like I push on the gas and it accelerates when it does it.

Your Answer

Add photo

Related Questions

  • Loss of oil pressure at idle,5.7 hemi 3 answers

    2009 dodge ram 1500 4x4,5.7 hemi.125,000 miles. Recently loss of oil pressure at idle,in gear,stopped. Drops down to 5 psi. At 70 mph, gauge reads 40-45 psi. Changed oil pressure sensor with oem. Fi...

    Dodge Ram 1500

    -

    Maintenance & Repair

  • 2011 Ram 5.7 hemi has an engine rattle at highway speeds 1 answer

    I bought a '11 Ram with the 5.7 Hemi a month ago with 52k on it. It doesn't idle smooth, and even when the rpms are up at cruising speed the rpm gauge jumps up and down by about 100 rpm. What worrie...

    2010 Dodge Ram 1500

    -

    Maintenance & Repair

  • My air conditioner is blowing hot air 18 answers

    All of a sudden hot air start blowing from my air conditioner. I have a 2006 Dodge Ram 1500 Hemi. My husband put freon in it. But I only get cold air when I am driving on the highway, and it just for ...

    2006 Dodge Ram 1500 ST Quad Cab SB 4WD

    -

    Maintenance & Repair

  • Rough Idle Issue 29 answers

    I have a 2003 Dodge ram 1500 SLT with the 4.7ltr engine that has 190,000 miles on it. It was idling real rough recently so I cleaned the throttle body out and changed out the idle control sensor. Th...

    2003 Dodge Ram 1500 SLT LB

    -

    Maintenance & Repair

  • Hemi MDS 228 answers

    I was wondering if anyone other than me absolutely hates the MDS system in their Hemi engines. Does anyone know how to disable it without having to by a Diablo Predator tuner? I know you can cut and c...

    Dodge Ram 1500

    -

    Car Customization

Search Dodge Ram 1500 Questions

UK Questions

Are you a UK consumer? CarGurus now has a discussion forum in the UK.

Dodge Ram 1500 Experts

#1 Dan Connell
Dan Connell
Reputation 5,690
#2 pudgybear
pudgybear
Reputation 5,300
#3 dandyoun
dandyoun
Reputation 4,940
View All

Related Models For Sale

Used Ford F-150
3,021 Great Deals out of 207,756 listings starting at $1,000
Used Chevrolet Silverado 1500
2,513 Great Deals out of 152,116 listings starting at $1,500
Used Dodge Ram 2500
157 Great Deals out of 5,617 listings starting at $2,950
Used GMC Sierra 1500
975 Great Deals out of 60,125 listings starting at $1,299
Used Toyota Tundra
661 Great Deals out of 28,289 listings starting at $2,798
Used Toyota Tacoma
705 Great Deals out of 31,954 listings starting at $2,750
Used Dodge Charger
467 Great Deals out of 30,103 listings starting at $2,275
Used Ford F-250 Super Duty
487 Great Deals out of 43,316 listings starting at $1,900
Used Dodge Dakota
131 Great Deals out of 4,336 listings starting at $995
Used Nissan Titan
248 Great Deals out of 15,814 listings starting at $3,000
Used Dodge Challenger
335 Great Deals out of 25,059 listings starting at $7,988
Used Dodge Ram 3500
98 Great Deals out of 2,338 listings starting at $5,000
Used Ford Mustang
532 Great Deals out of 42,736 listings starting at $1,699
Used Chevrolet Tahoe
819 Great Deals out of 27,811 listings starting at $1,700

Used Cars For Sale

2010 Dodge Ram 1500 For Sale
77 Great Deals out of 1,473 listings starting at $5,995
2009 Dodge Ram 1500 For Sale
47 Great Deals out of 1,253 listings starting at $6,000
2008 Dodge Ram 1500 For Sale
83 Great Deals out of 1,719 listings starting at $2,995
2007 Dodge Ram 1500 For Sale
63 Great Deals out of 1,606 listings starting at $2,421
2006 Dodge Ram 1500 For Sale
84 Great Deals out of 1,533 listings starting at $2,899