1996 Dodge Ram heater

Tiny
MIKEY61046
  • MEMBER
  • 1996 DODGE RAM
  • V8
  • 4WD
  • AUTOMATIC
  • 105,000 MILES
I just replaced my water pump and altanator and now it wont heat up my inside of my truck its like a luke warm it doesnt get hot and it wont defrost my windows the temp. Gauge reads just a little higher than normal whatcan I do to fix this
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Saturday, March 8th, 2008 AT 6:14 PM

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Tiny
SERVICE WRITER
  • EXPERT
Couple thoughts:

The thermostat may be sticking open and not allowing it to heat up like it's supposed to.

There is an air pocket that may be in the heater core.

The water pump may be a problem.

Questions:
What liter size is the engine?

Is the water pump new or reman?

Was the heat present before the work?

Did you overheat it at all, gauge going into the red?
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Saturday, March 8th, 2008 AT 6:18 PM
Tiny
MIKEY61046
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Saturday, March 8th, 2008 AT 6:21 PM
Tiny
SERVICE WRITER
  • EXPERT
Feel the heater hoses at the core are they hot going in and hot coming out or just luke warm coming out?
Should be hot on both sides.

IF you have access to a heat temp gun shoot the rad from top to bottom as there have been a common thread of radiators plugging at the bottom.

Did you copmpare the new pump to the old one to make sure the fins were not a reverse directional?
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Saturday, March 8th, 2008 AT 6:41 PM
Tiny
MIKEY61046
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The hoses are hot on both sides

whats a heat temp gun

and the repair shop put the water pump on I didnt
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Saturday, March 8th, 2008 AT 6:45 PM
Tiny
SERVICE WRITER
  • EXPERT
Take it back to the shop, that is thier baby to figure out.

They may need to bleed the system. Hopefully they didn't put a reman one on as the fins can be corroded and not changed by the reman company or a reverse fin put on.
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Saturday, March 8th, 2008 AT 6:55 PM

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