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Why does my Dodge Ram 2500 cummin's heat up when.

Tiny
GARYHELTON75
  • MEMBER
  • 2003 DODGE RAM
  • 155,248 MILES
Why does my Dodge Ram 2500 cummin's heat up when I am stopped for a short period of time? The waterpump is not leaking and when I am stopped my ac gets warm too. Thanks
Sunday, March 18th, 2012 AT 2:18 AM

2 Replies

Tiny
DRCRANKNWRENCH1
  • MECHANIC
  • 3,435 POSTS
There are several reasons it could be overheating;

the system pressure may be low

bad radiator cap

the fan may not be coming on

the temperature sensor has failed causing the above

the thermostat is partially stuck and won't open all the way

i am giving ypou a walk through diagnostic as well. Just follow the link below.

http://www.2carpros.com/articles/engine-surges
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Sunday, March 18th, 2012 AT 3:08 AM
Tiny
DRCRANKNWRENCH1
  • MECHANIC
  • 3,435 POSTS
I meant to give you this diagnostic, sorry.

https://www.2carpros.com/articles/engine-coolant-59420607
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Sunday, March 18th, 2012 AT 3:08 AM

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