Chip=high tranny temp even with 6.0 cooler - Ford Powerstroke Diesel Forum
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Old 05-09-2013, 03:42 PM
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Chip=high tranny temp even with 6.0 cooler

So I install my 6.0 cooler a couple weeks ago and normal driving with my beans chip set on daily I could hit 190 pretty easy if I was in it up a decent grade. Well today I had the day of work and decided to take my new dirt bike out. Was going up a 12 mile 6% grade in daily tune and my tranny hit 230. All I had was my bike in the bed. I pulled over to let it cool. So the back ground on my chip it's for the same year as my truck but it was burnt for a nvk PCM. I have a Cali truck dpc 452 PCM and when I hooked it up it worked fine. Would the different in PCMs cause any issues? I know I need it reborn as I also don't like how it want to shift into the next gear and back when I'm just putzing around.
Hope some of this makes sense


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Old 05-09-2013, 04:02 PM
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check the bypass... sounds to me like it has gone bad.... so no oil is going to the cooler.... They go bad pretty often...
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Old 05-09-2013, 04:05 PM
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I'll check but I think the bypass is working cause as soon as I pull over or crest the grade it cools pretty fast


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Old 05-09-2013, 04:07 PM
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It just drives me crazy lol I read about ppl barely going over 170 with over 10,000lbs trailer with the 6.0 cooler and I have yet to even pull my toy hauler yet with the upgrade ld cooler. Must be these crappy SoCal mountains lol


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Old 05-09-2013, 04:14 PM
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I have a sct tuner in my 6.0 and run a race tune all the time, even while towing 9,000#, I just watch the egt's but I have never hit over 190 on the trans. Now given I live in Delaware and its flat as a pancake but still I have 38's and towing a tandem axle, deck over trailer with two tractors on it I have never hit over 190 mostly it stays around 170 all the time. Do you all run in tow haul mode or regular shift mode when towing?
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Old 05-09-2013, 04:21 PM
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Well I haven't pulled a trailer yet since I installed the 6.0 cooler but when I tow my toy hauler... Roughly 12,000# loaded I used my tow tune


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Old 05-09-2013, 04:22 PM
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And yes my truck only had a bike and I also run 35's


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Old 05-09-2013, 04:24 PM
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I'm going to take it in to the shop hopefully this weekend and have the fluid and filter changed. I'm debating on picking up a deep tranny pan at the same time but I have heard mixed reviews about the pans... Some say a waste of money others swear buy them


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Old 05-09-2013, 04:26 PM
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I just want this thing straightened out. Nothing worse than having to worry about your truck and starring at gauges while your towing lol


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Old 05-09-2013, 04:46 PM
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was the cooler new? i did the same cooler swap on my truck and saw a dramatic drop in temps.... then about a month later i saw really high temps but my bypass had gone bad... next time it gets that how pull over and touch the bypass line in the middle and if it feels scorching hot you have a bad bypass..... its only about 15 bucks new
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