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Old 12-05-2010, 03:10 PM   #1 (permalink)
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Block heater not working, how to test?

Ok, so I just bought this 01 2500 and it has gotten to 20 degrees or so, therefore I plugged her in, and in the morning it was not warm at all!

So how can I check this system for faults? I checked the connection at the heater on the block, and the plugs on both ends look good. Is there a resistance spec for the heater itself? Would like to get this working ASAP!
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Old 12-05-2010, 04:31 PM   #2 (permalink)
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see if this helps...

block heater problem
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Old 12-05-2010, 07:10 PM   #3 (permalink)
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So the cord just needs continuity, if it does then its a bad element? So the element warms via Coolant passage way?
Thanks!
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Old 12-05-2010, 08:23 PM   #4 (permalink)
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mine when plugged in the WTS light goes off after like 3 seconds. when unplugged takes like 25
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Old 12-05-2010, 08:44 PM   #5 (permalink)
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Talking tROUBLESHOOTIN.

Quote:
Originally Posted by Redline89 View Post
So the cord just needs continuity, if it does then its a bad element? So the element warms via Coolant passage way?
Thanks!
Check if your cord is faulty first. Then replace element if the cord is good. You can feel the block get warm (maybe give it .5 to 1 hour before check) around the heater element if both parts of this unit are functional.
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Old 12-05-2010, 10:38 PM   #6 (permalink)
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Ok, so if the cord has continuity,then replace the element. check.

So, does the element heat via coolant passage?
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Old 12-06-2010, 11:51 AM   #7 (permalink)
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Originally Posted by Redline89 View Post
Ok, so if the cord has continuity,then replace the element. check.

So, does the element heat via coolant passage?
the block heater is on the exhaust side of the engine and it sits through a coolant plug,

The way to see if it works at all is to plug it in and check the block, if the engine is really warm to the touch after 2 hours then the block heater works fine, if not then check the block heater wire.

If the block heater wire is warm or hot in any area then its prolixly corroded inside, this can and does happen, rarely did we ever replace the actual heating element in the engine block.

Hope this helps.
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Old 12-06-2010, 02:59 PM   #8 (permalink)
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Ok thanks. Im checking the dealer down tge street to see if they have either part...

It sure takes forever to heat up....
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Old 12-06-2010, 06:50 PM   #9 (permalink)
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Exclamation

[QUOTE=Redline89;3602886]Ok thanks. Im checking the dealer down tge street to see if they have either part...

I had a quote for cable from dealer at 79 bucks, local diesel shop got me an aftermarket one for 29 bucks and the quality seemed fine and it works good to.
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Old 12-06-2010, 08:26 PM   #10 (permalink)
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Yeah my dealer cost at dodge is 45 bucks for cable and 56 for the element. So im gonna buy from genos.

So I tested the cable and its got a loose connection inside it....
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Old 12-06-2010, 08:27 PM   #11 (permalink)
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Oh and does it connect one way to the element? Or can go both ways?
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Old 12-06-2010, 10:05 PM   #12 (permalink)
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Talking One Way

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Oh and does it connect one way to the element? Or can go both ways?
The cord goes on the element or vice versa only one way, you can not make an error with it (ground is in middle of the three prongs and offset from center line)
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