My dodge truck is running hot up around 220 when driving in town, over the Mt. Pass etc.

Asked by Jun 28, 2015 at 01:39 PM about the 2001 Dodge Ram 2500 2 Dr SLT 4WD Standard Cab LB

Question type: Maintenance & Repair

I've replaced the thermostat with a 190 and it still is running hot, my truck is a 2001 with
215000 miles, it's been bullet proof! I had the original Thermostat replaced at a garage
about 205000 miles because the OEM stuck open and the truck would not run up to
operating temp. He also flushed and filled it with new coolant.

2 Answers

235

My guess, GUESS now, is that the coolant mixture is off. Most people don't know this, but its the water that does all the cooling work, not the antifreeze. The antifreeze is simply a liquid that is manufactured to attempt to cool as good as water but prevent from freezing during winter hence the name. Water is the best cooling, but it will seize the block if it freezes. Several tests decades ago determined the optimized mix is 50/50. Too much antifreeze and the vehicle gets hot, too little and not enough protection. SO I recommend thinning out your mixture with more water.

58,375

May be time for a new radiator,

Your Answer

Add photo

Related Questions

Search Dodge Ram 2500 Questions

Dodge Ram 2500 Experts

#1 Dan Connell
Dan Connell
Reputation 1,970
#2 Ram2500Diesel
Ram2500Diesel
Reputation 490
#3 AJBurns
AJBurns
Reputation 420
View All

Related Models For Sale

Used Dodge Ram 3500
86 Great Deals out of 2,425 listings starting at $5,000
Used Ford F-250 Super Duty
468 Great Deals out of 42,478 listings starting at $2,995
Used Chevrolet Silverado 2500HD
433 Great Deals out of 28,915 listings starting at $2,998
Used Dodge Ram 1500
527 Great Deals out of 12,901 listings starting at $1,795
Used GMC Sierra 2500HD
128 Great Deals out of 13,665 listings starting at $1,500
Used Ford F-150
3,336 Great Deals out of 203,178 listings starting at $1,273
Used Chevrolet Silverado 1500
2,615 Great Deals out of 148,184 listings starting at $1,800
Used Ford F-350 Super Duty
457 Great Deals out of 26,645 listings starting at $3,900
Used Chevrolet Silverado 2500
5 Great Deals out of 249 listings starting at $4,500
Used Toyota Tundra
643 Great Deals out of 28,029 listings starting at $1,599
Used GMC Sierra 1500
1,137 Great Deals out of 57,460 listings starting at $995

Used Cars For Sale

2010 Dodge Ram 2500 For Sale
17 Great Deals out of 304 listings starting at $7,900
2009 Dodge Ram 2500 For Sale
20 Great Deals out of 305 listings starting at $9,000
2008 Dodge Ram 2500 For Sale
26 Great Deals out of 609 listings starting at $7,590
2007 Dodge Ram 2500 For Sale
24 Great Deals out of 803 listings starting at $3,995
2006 Dodge Ram 2500 For Sale
41 Great Deals out of 1,282 listings starting at $5,200