5.9 gas cooling problem

Asked by May 09, 2016 at 05:39 PM about the 1998 Dodge Ram 1500 4 Dr Laramie SLT 4WD Extended Cab SB

Question type: Maintenance & Repair

Having a cooling problem  I just bought this truck
the radiator was sepperated from the plastic side
tanks to the cooling tubes I've replaced with a
used one the clutch fan is new and the water
pump was replaced and the thermostat 194° put it
a pan heated up on stove to make sure it worked    
I can let idle for 40 minutes as I'm filling water
making sure all the air is out with the a.c. on and
temp climbed to 210° after an hour of run time all
and all with everything buttoned up  I can live with
that but as soon as run the truck 70 mph it gets
hot 230-250 turn off the a.c and it comes back
down to 230 and seems to stay but if you push the
motor harder it gets hotter as I go slower setting in
traffic/stop lights it cools down to 210-220 I just
don't get it. It seems to be backwards it should be
over heating with the a.c. on idling other than
rolling down the road with more air and water
movement any help would be great info

2 Answers

Feeling kinda silly but I found the issue Radiator was plugged in the mid section NOTE TO SELF As you do any changes to the cooling system run you hand on the Radiator palm flat and if your coolant is flowing property you will feel even heat from top to bottom of radiator GRRR

100

Fist get to regular temp squeze hoses to check for flow BE CAREFULL HOT .may have to flush your heater core .had that with mine after putting new radiator in

Your Answer

Dodge Ram 1500 Experts

  • #1
    Dan Connell
    Reputation
    6,510
  • #2
    pudgybear
    Reputation
    6,380
  • #3
    dandyoun
    Reputation
    5,790
View All

Related Models For Sale

Used Ford F-150
2,774 Great Deals out of 212,572 listings starting at $1,300
Used Chevrolet Silverado 1500
2,353 Great Deals out of 173,314 listings starting at $699
Used Dodge Ram 2500
158 Great Deals out of 5,252 listings starting at $2,500
Used GMC Sierra 1500
1,117 Great Deals out of 65,142 listings starting at $1,750
Used Toyota Tacoma
656 Great Deals out of 45,743 listings starting at $2,700
Used Ford F-250 Super Duty
346 Great Deals out of 47,784 listings starting at $1,899
Used Dodge Dakota
90 Great Deals out of 3,607 listings starting at $1,800
Used Ford Mustang
543 Great Deals out of 36,560 listings starting at $1,500

Used Cars For Sale

2010 Dodge Ram 1500 For Sale
76 Great Deals out of 1,369 listings starting at $6,798
2009 Dodge Ram 1500 For Sale
42 Great Deals out of 1,065 listings starting at $5,990
2008 Dodge Ram 1500 For Sale
77 Great Deals out of 1,565 listings starting at $2,950
2007 Dodge Ram 1500 For Sale
59 Great Deals out of 1,418 listings starting at $2,588
2006 Dodge Ram 1500 For Sale
52 Great Deals out of 1,249 listings starting at $2,994

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.