Getting hotter out here just wondering what is considered normal for coolant & transmission temperatures?
On the Grapevine in CA specifically I was seeing about 200-220° for my coolant and as high as 225° for my transmission. I think the outside temp was about 85 and was hauling about 42k.
I know these temperatures are not horrible but when it does hit 90-110° outside what is considered normal?
Does anybody run a aftermarket transmission cooler on their trucks?
Temperatures running mountains
Discussion in 'Ask An Owner Operator' started by Semi Disturbed, May 22, 2022.
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Another Canadian driver and Flat Earth Trucker Thank this.
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200-220. It shouldn’t run any hotter.
Another Canadian driver, blairandgretchen and Flat Earth Trucker Thank this. -
And I imagine you already have a trans cooler on the truck.
Another Canadian driver, blairandgretchen, Oxbow and 1 other person Thank this. -
What do you have for a truck? If it’s newer you’ll be seeing higher temps, and the transmission sits right next to the DPF for the most part. If you’re concerned it’s running too warm you can downshift a gear and run about 1509 rpm and not work the components so hard in the heat.
OhNoTerry, Another Canadian driver and Siinman Thank this. -
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Hammer166, Nostalgic, Sirscrapntruckalot and 6 others Thank this.
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I always run engine fan on manual if I have the switch to do so .. I find you give up a tad of power at the bottom but have more near the top due to charge air staying cooler. I know it may burn a minimal amount of fuel extra but I pass guys steady who are leaking fluids on the shoulder near the top so it’s a good trade off IMO
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#### here i was thinking 1527 was the correct r’s to run hills atHammer166, Nostalgic, Opendeckin and 6 others Thank this. -
Vacuum the radiator, charge air cooler, AC condenser and trans cooler (if applicable). Let the coil cleaner sit 10 minutes (make sure it stays wet) and pressure wash it. You’d be amazed at the crap that comes out. That crap acts as an insulator and hampers cooling. Re-apply coil cleaner and re-wash if necessary.
I wouldn’t recommend anything over 400 PSI as you can damage the fins.mitmaks, D.Tibbitt, rollin coal and 2 others Thank this.
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