Engine cooling.


Asked by Aug 31, 2009 at 09:24 AM about the 2003 Dodge Ram 2500

Question type: Maintenance & Repair

I have an 03 Ram 2500 with a Cummins Turbo Deisel and when ever I'm towing my 7,000lbs. camper in stop and go traffic, the engine over heats. Will a drain and flush of the coolant fix this?

3 Answers


check to make sure that the fan is coming on a coolant flush will not fix this and I would not recommend any additives to the coolant system to make it colder run the truck for awhile see if the fan comes on if it does not apply 12 volt power to the fan if it comes on then check that the wires are not torn or broken then check the relay if it does not come on then look for signs of a faulty fan burnt motor etc


it might help. considering the truck runs properly when not towing it sounds like that could potentially be the problem. another problem i could think of is maybe your thermostat isnt opening up properly or your fan isnt turning on properly either. try the flush. it couldnt hurt and probably is a good idea if you have a bunch of miles on your ride now.


one of the biggest problem i had with my 1996 cummins was overheating while towing as well. what i did was change over my fan to electric and then change my coolant protection from -34 50/50 (antifreeze/water) to -28 40/60 (antifreeze/water). i had a friend of mine help me with this decision as he did the same, after that i didn't have a problem.

Your Answer:

Ram 2500

Looking for a Used Ram 2500 in your area?

CarGurus has 4,825 nationwide Ram 2500 listings starting at $2,200.


Dodge Ram 2500 Experts

  • #1
    Dan Connell
  • #2
  • #3
View All

Related Models For Sale

Used Dodge Ram 3500
79 Great Deals out of 2,074 listings starting at $4,990
Used Ford F-250 Super Duty
487 Great Deals out of 40,156 listings starting at $2,700
Used Chevrolet Silverado 2500HD
404 Great Deals out of 30,313 listings starting at $3,000
Used Dodge Ram 1500
326 Great Deals out of 9,355 listings starting at $1,995
Used GMC Sierra 2500HD
145 Great Deals out of 17,680 listings starting at $2,995
Used Ford F-350 Super Duty
349 Great Deals out of 23,248 listings starting at $3,249
Used Ford F-150
2,356 Great Deals out of 208,288 listings starting at $998
Used Chevrolet Silverado 1500
1,788 Great Deals out of 154,391 listings starting at $1,000
Used Chevrolet Silverado 2500
205 listings starting at $5,400
Used Toyota Tundra
449 Great Deals out of 39,425 listings starting at $2,800
Used GMC Sierra 1500
746 Great Deals out of 61,254 listings starting at $1,395

Used Cars For Sale

2010 Dodge Ram 2500 For Sale
12 Great Deals out of 314 listings starting at $9,990
2009 Dodge Ram 2500 For Sale
14 Great Deals out of 284 listings starting at $7,950
2008 Dodge Ram 2500 For Sale
26 Great Deals out of 566 listings starting at $7,897
2007 Dodge Ram 2500 For Sale
27 Great Deals out of 711 listings starting at $6,300
2006 Dodge Ram 2500 For Sale
28 Great Deals out of 1,055 listings starting at $5,099

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.