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2017 block heater

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Old Dec 11, 2019 | 08:12 AM
  #1  
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chadlandt
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2017 block heater

I have had the recall done on my block heater cord 3 times.
today it is -14 outside and it has been plugged in since 0600. I turned the key on to ck the oil temp and readout says -11.
this is after 2hr after plug in.
What should the temp come up too and how do I make sure it it working properly?

My last truck 2001 7.3L had an excellent block heater. In these temps I could plug in for 2 hrs and would start like it was 70 deg out. I could see the temp gauge needle even move off of cold.


I just don't want to ruin any internal parts due to cold starts, And I want to make sure my blk heater is working properly.

Thanks, Chad
 
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Old Dec 11, 2019 | 08:23 AM
  #2  
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sxrfun
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Are you reading oil temp or coolant temp? Block heater heats the coolant.....anyway to read actual coolant temp?
 
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Old Dec 11, 2019 | 08:44 AM
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chadlandt
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I know, but you would think it would be at least above the -deg mark on the oil side. Guess what I was asking is how much should the oil temp rise above ambient temperature? It has to rise some.

 
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Old Dec 11, 2019 | 08:47 AM
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I know, but you would think it would be at least above the -deg mark on the oil side. Guess what I was asking is how much should the oil temp rise above ambient temperature? It has to rise some.


 
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Old Dec 11, 2019 | 08:50 AM
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sxrfun
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Good question.....I have an 08 6.4.....I've never looked at actual temps...but what i do to check block heater is plug it in for several hours....then before starting the truck...open hood and feel the engine. Find a metal spot on engine where coolant is....ie i feel the upper part of my EGR cooler as it still has coolant flowing through it.
 
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Old Dec 11, 2019 | 09:02 AM
  #6  
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I’m with you Chad.

I have complained a couple times to the dealer about the block heater. Yesterday it was -16C, truck was plugged in for 4hr before starting and when I hit the command start, it fires immediately with no delay for the glow plugs. The manual states that plugging in the block heater for more than 3hrs is not needed. Definitely don’t like hearing a metal on metal clanging sound for the first 5 seconds of operation. I’ve never checked the coolant temps but was assured this is normal operation because the glow plug system reads the coolant temp. Last winter, in -35C temps while plugged in, I would skip the command start and let the glow plugs cycle 3 times before starting. No more metals on metal sounds. Something has to be wrong with the operation of the cold start systems, block heater or sensor not delaying for the plugs.
 
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Old Dec 11, 2019 | 09:21 AM
  #7  
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harmanrk
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From: Lansing MI
When using the block heater last winter (have not needed is yet this winter) I typically see a 35 to 40 degree rise on the coolant over the air temp. So at 0, I would see coolant at about 40 on startup. Oil temp shows air temp at startup These are the values my CTS2 unit displays from the PIDs. When starting to drive I can watch the coolant temp come down, and the oil temp come up, as it equalizes over the first mile or so, then tey start to rise together.

As was said, the block heater is in the water jacket, and heats the coolant, and the block. All the oil in down in the pan (or at least what is being measured for the temp gauge), so would not be heated by the block heater.

 
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