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Plenum gasket

  #11  
Old 05-18-2019, 05:06 PM
MoparFanatic21
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Originally Posted by potentshadow View Post
I recently did a plenum gasket, thermostat, thermostat housing, water pump and gasket and my temperature indicator always reads about 180 which is the type of thermostat I put in. Is there anyway I can make sure the temp readings are actually accurate so Im not driving my truck at high temps and not realize it?
Any scanner (even the chain stores ones) can show you what the PCM sees as the temperature
 
  #12  
Old 05-19-2019, 01:16 PM
Jeffery Last
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Well I put the truck on the barn approach, ran the idle up a little and watched the coolant in the radiator... have quite a bit of bubbles..... went for an hour drive... so far temp is running lower. Granted the outside temp is now in the 40s.. will see again when it warns up. Thanks all for the imput
 
  #13  
Old 05-19-2019, 02:02 PM
MoparFanatic21
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Originally Posted by Jeffery Last View Post
Well I put the truck on the barn approach, ran the idle up a little and watched the coolant in the radiator... have quite a bit of bubbles..... went for an hour drive... so far temp is running lower. Granted the outside temp is now in the 40s.. will see again when it warns up. Thanks all for the imput
I just had that problem today actually 85 temps and it was right under 200 (I have a 180 thermostat and it is always at the quarter mark). Bought some distilled water topped it off and it's back to normal.
 

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