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Old 01-22-2018, 09:49 AM   #4
williamgcastro
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Join Date: May 2009
Posts: 35
Default Re: Silly question on factory engine block heater.

I never used mine so I am not an expert.

I seem to recall that there was a thermostat built into the power cord and only activated at lower temperatures. Not sure what the activation temperature was.

I also recall a member posting on here how he could not get his car to start in very cold temperatures one day. Apparently the cam phasers were not in the "start" position and with the cold oil they would not move. I believe there was an ECM update that fixed this issue.

The heater only warms the oil so I doubt that you will find any difference to the warm up of the car. I had a more traditional block heater in another car that warmed the coolant in the engine and I was able to notice that the car did seem to warm up faster using this style.

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