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  1. What temp to plug in the 3.0 Duramax - Chevy and GMC Duramax …

    Dec 21, 2022 · An updated calibration will be available shortly. Also inform the customer to avoid engine block heater use in temperatures above 0°F/–18°C. While the owner’s manual states …

  2. How To: Block Heater FAQ - Chevy and GMC Duramax Diesel Forum

    Nov 24, 2010 · The block heater is simply an element (kind of like a probe) in the coolant stream in the block. When plugged in, power flows thru it and causes the element to get hot.

  3. 3.0L & DEF in the cold - Chevy and GMC Duramax Diesel Forum

    Oct 10, 2021 · Also inform the customer to avoid engine block heater use in temperatures above 0°F/–18°C. While the owner’s manual states an engine block heater should be used in …

  4. Gauge of cord for winter plug in? - The Diesel Stop

    Nov 26, 2006 · After that, the block heater element was installed on all diesels, but the cord to plug it in was standard only in a few really-cold states. The cord is optional and you can buy it …

  5. Block heater on 2024 L5P - Chevy and GMC Duramax Diesel Forum

    Jan 7, 2024 · The GM “block heater” is very sensitive and if you are taking your truck into work , or a facility that cycles their plugs on and off for any length of duration you will blow the block …

  6. What temp should I use block heater? - The Diesel Stop

    Dec 29, 2012 · Thanks for all the great reads here here folks, I'm new to diesel. Here's the question: at what temperature should I be concerned about plugging the block heater in? …

  7. Installing engine block heater - The Diesel Stop

    Nov 16, 2014 · Block Heater questions again So all of this great discussion about block heaters! Now the question is has anyone attempted the same updates with the 2014 F-250 6.7L?

  8. Engine block heater?? | Chevy and GMC Duramax Diesel Forum

    Sep 23, 2019 · A block heater isn't generally needed above 0F and in fact the engine will typically start just fine down to 0 even without glow plugs. That is the nature of an open chamber diesel …

  9. When to start using block heater? - Chevy and GMC Duramax …

    Dec 17, 2009 · Ok, when should I start using the block heater? All our diesel trucks at work have been getting "plugged in" for about a month now, most of which are Fords. The mechanic at …

  10. Does my truck have a Block heater - Chevy and GMC Duramax …

    Feb 1, 2010 · The block heater is located on the passenger side just forward of the motor mount. It has a removable/replaceable cord. If you can't find the cord, it may have been damaged at …