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really awful
Typical Repair Cost:
Average Mileage:
129,926 miles
Total Complaints:
4 complaints

Most Common Solutions:

  1. not sure (3 reports)
  2. take dash apart and replace the heater core (1 reports)
1998 Dodge Ram 1500 AC / heater problems

AC / heater problem

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1998 Dodge Ram 1500 Owner Comments

problem #4

Oct 012009

Ram 1500 Sport 5.9L V8

  • Automatic transmission
  • 125,000 miles


Truck has had very little heat since I bought it. I have changed thermostat twice. 195deg. Burped the heating system and have a piece of plywood in front of the radiator. Working the truck. Like going up a steep hill. It will blow heat, but it can idle all day and not be warm in the cab if it's under 30 degrees outside.

Someone told me about changing a "Heat modulator valve" or" Relay" located on the passengers side fire wall. So far I haven't found this Valve/Relay.

Any Ideas would be great.

- , Lebanon, NH, USA

problem #3

Nov 192008

Ram 1500 Laramie SLT 5.9L V8

  • Automatic transmission
  • 128,000 miles

Heat went out in the start of winter. Replaced the thermostat but that wasn't it, determined it was the heater core that went bad. I was not going to pay that much money to get it replaced so I stuck 2 pieces of cardboard in front of the radiator to make the engine warm up faster so I could get some excess heat from that.

- , Indianapolis, IN, USA

problem #2

Nov 182009

Ram 1500 5.2L V8

  • Automatic transmission
  • 130,000 miles

Heater air does not get hot when temperature falls below 45 degrees. First and last Dodge, this truck is evil.

- , Jackson, TN, USA

problem #1

Nov 302008

Ram 1500 1500 SLT 5.9L V8

  • Automatic transmission
  • 136,702 miles

i have never had a truck that would not produce any heat in the winter .whats my cure? i need help with this,and no its the thermostat.

- , Sault Ste Marie, Ontario, Yemen

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