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Replacing block heater ??

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Old Dec 31, 2008 | 10:13 PM
  #1  
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Replacing block heater ??

When replacing the OEM block heater, do i need to drain the antifreeze first ?
 
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Old Dec 31, 2008 | 10:23 PM
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Mark, I am pretty sure that is an oil heater.. I am subscribing to just to learn the answer..
 
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Old Dec 31, 2008 | 10:26 PM
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I don't think you have to but you will have it coming at you while replacing it with the new one. And it is antifreeze that it heats.
 
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Old Dec 31, 2008 | 10:28 PM
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Tracy, I picture this thing being a rod heater, does this thing run down a port in the engine,along a coolant jacket, or how does it work??
 
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Old Dec 31, 2008 | 10:32 PM
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It is similar it how a hot water element works it heats the coolant keeping the block warm which will inadvertently keep oil in the block warm.
 
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Old Jan 1, 2009 | 12:03 AM
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Are you sure it is bad? Ohm check it.. it should have about 40 ohms if operating properly. Check it at the block.. Read alot of posts where the cord/plug were bad..
 
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Old Jan 1, 2009 | 12:50 AM
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it is most likely your block heater cord and not the heater. mine was acting up and i changed the cord and it is good to go!
 
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Old Jan 1, 2009 | 09:12 AM
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They are right Mark check your cord first 90% of the time that is all it is and that is a lot easier fix.
 
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Old Jan 1, 2009 | 09:38 AM
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Thanks guys, and Happy New Year.

My truck block heater is fine

My buddys truck is the one where working on today, he bought a new heater of E-bay and asked me to help him install it, along with a long list of other things.
 
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Old Jan 1, 2009 | 10:04 AM
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Originally Posted by maevans
Thanks guys, and Happy New Year.

My truck block heater is fine

My buddys truck is the one where working on today, he bought a new heater of E-bay and asked me to help him install it, along with a long list of other things.
Sounds like a fun day of helping out Mark.
 
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Old Jan 1, 2009 | 11:56 AM
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Originally Posted by maevans
Thanks guys, and Happy New Year.

My truck block heater is fine

My buddys truck is the one where working on today, he bought a new heater of E-bay and asked me to help him install it, along with a long list of other things.

if the new heater came with a separate cord, just try swapping that out first!
 
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