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Topic: Block heater question (Read 2075 times) previous topic - next topic

Re: Block heater question

Reply #40 –
Quote from: hjrein –
Not to change the tone of the subject, but I have a question regarding replacing my block heater.
You and I have pretty much the same coach. When I turn my block heater on the switch at the bottom of the bed on the co-pilot side has a light that comes on inside it. Is that the way yours works? Have you tested to make sure that there is 120vac at the receptacle where the block heater plugs in? You should also be able to check the resistance of the heater (measure from prong-to-prong on the electrical plug). It should be 4 or 5 ohms I think. If it's infinity then the unit is open.

I would contact Cummins. You will need your EID (engine ID) number because if you don't have it they'll tell you that every engine is different. But I suspect any block heater for any Dodge in the early 90s would do the job.

Craig

Re: Block heater question

Reply #41 –
Hey Craig.  Yes we do have pretty much the same coach.  I do have the block heater switch at the bottom of the bed, but the red light on just means the outlet in the engine compartment that the block heater plugs into is working (on).  Unplugged the heater and tested the plug - got OL - no resistance whatsoever.  Plugged it back in and unhooked from the block and tested cord for voltage - 120 volts.  could not get my tester to touch the actual prongs of the heater to check for resistance but I believe testing the electrical plugs prongs (as you suggested) was sufficient to test for resistance.  I will probably contact cummins tomorrow - just don't want to buy a cheapo (poor quality)heater.  Thanks.  Did you ever put in a resonator.

Howard

Re: Block heater question

Reply #42 –
Thanks Craig - Cummins did have the block heaters and cord.  They even had it in stock.
Howard