Diesel - FAQ - Start Here First - Page 2 - Chevy Colorado & GMC Canyon
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post #21 of 22 (permalink) Old 08-03-2016, 02:00 PM
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Originally Posted by rbrak29 View Post
Have a 2015 Canyon SLT V6. Purchased a new 4000# travel trailer to do some trial tours before my wife and I retire. After picking up the trailer and towing it back home (approx 220 miles), traveling down a relatively flat highway the V6 had a difficult holding 60 - 65 and some trouble finding the correct gear. 9.5 mpg. Transmission temp over 210F at times. Outside temp. 85F. Would the diesel do any better?
(Off topic: Do I need an aftermarket tranny cooler?)
I just towed my 1983 S-10 pick-up @ 300 miles. I think it weighs @ 3000 pounds. Got 21mpg. No issues and didn't need to use tow/haul. Pretty hot that day. Trans temp was @ 190-195. BTW - I got 31 mpg coming home empty.

GO DMAX !

Rob
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post #22 of 22 (permalink) Old 11-14-2016, 05:55 PM
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Originally Posted by malibujase View Post
Any issues with the tuner?
Mine was in for 12 hours and now has to go to the dealer to have a manual ReGen because it went into limp mode and has not stopped wanting to ReGen yet even though I have driven it (in limp mode) as well as ran it above 2k rpm for an extended period.
Rather nerve racking to have to take my truck in immediately after putting in the tune. I put it back to stock on Monday and have a service appointment for Thursday. I have been working with Duramax tuner on the issue. They say it's very isolated. The truck did run like much better for the 20 miles I drove it before it falling limp.
Time to delete

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