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04-21-2021, 01:44 PM | #1 |
Registered User
Join Date: May 2015
Location: Montana
Posts: 3,696
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Re: Duramax/Allison downshift?
Well, I'm probably just talking into the void right now - but ...
The problem was the "coolant bypass hose" they said the clamp was loose and they don't know how in the world she made it from Montana to Michigan, and then from Michigan to Denver pulling a 10K# gooseneck without it leaking before yesterday! $340 to repair a loose hose clamp Would removing or loosening this hose be something a shop would do when draining/flushing/refilling the coolant ???
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Current/past Chevy/GMC trucks: 1958 Chevy C-60; 1965 GMC C-50; 1965 Chevy C-10; 1971 Chevy K-10; 1973 Chevy K-20; 1976 GMC C-20; 1977 Chevy C-10 Suburban; 1980 Chevy K-10; 1989 Chevy K1500; 1991 GMC V1500 Suburban; 2016 Chevy K2500 HD Other vehicles: 1988 Jeep XJ; 2011 Toyota 4Runner |
04-21-2021, 02:44 PM | #2 | |
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Join Date: Jan 2007
Location: Mississippi
Posts: 2,119
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Re: Duramax/Allison downshift?
Quote:
Over the phone diagnostics & on the road repairs are things that cause major headaches & wallet hurt sometimes. Sounds like the good Lord & good luck is on her side though!
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'72 C to K20 "Cannibalizer" http://67-72chevytrucks.com/vboard/s...32#post8653432 '85 K30 "Big Nassy" '06 3500 Duramax ...tow truck '06 Silverado SS...DD '06 C1500 WT...DD '07 Classic C1500 WT...DD Built & sold cause can't keep 'em all: '72 Blazer "The Bucket" http://67-72chevytrucks.com/vboard/s...d.php?t=433190 '55 Chevy straight axle gasser https://www.trifive.com/forums/showthread.php?t=173938 '69 Pro Street Chevelle http://www.chevelles.com/forums/showthread.php?t=332541 '86 M1031 CUCV http://67-72chevytrucks.com/vboard/s...d.php?t=553619 |
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04-21-2021, 03:57 PM | #3 | |
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Join Date: May 2015
Location: Montana
Posts: 3,696
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Re: Duramax/Allison downshift?
Quote:
The thing that's bothering us now is this: one morning after she got back to Michigan her truck wouldn't start. She called for a tow and the driver asked to look at it first. He found the fuel filter housing was loose and it had lost prime. I had just had the fuel filter(s) changed in Billings before she came and got the pickup and drove it back east I also had the dealer drain/flush/refill the engine coolant, and now the mechanic in Denver says he found a loose clamp on the bypass hose. I can't imagine that they would have messed with that at the dealer but it sure is making me wonder ...? Obviously, I'm not too happy with the Chevy dealer right now. We didn't buy her pickup from them because they don't keep anything that old on the lot, but I bought a 2016 from them a year ago, and I had over a grand worth of service done on the 2002. Anyway, I'm glad that it's something relatively simple and not something like a head gasket. Now she's got to get a ride back over the mountains next week to get her pickup back. I think when she gets back over to the ranch that she should load up the trailer real heavy and drive it up the west side of Monarch Pass and back just to test it out on a hard pull before she ever takes off with a loaded trailer on a long trip again She's only about 30 miles west of the summit where she's staying now.
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Current/past Chevy/GMC trucks: 1958 Chevy C-60; 1965 GMC C-50; 1965 Chevy C-10; 1971 Chevy K-10; 1973 Chevy K-20; 1976 GMC C-20; 1977 Chevy C-10 Suburban; 1980 Chevy K-10; 1989 Chevy K1500; 1991 GMC V1500 Suburban; 2016 Chevy K2500 HD Other vehicles: 1988 Jeep XJ; 2011 Toyota 4Runner |
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04-21-2021, 03:48 PM | #4 | |
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Join Date: Oct 2008
Location: Wentworth, NH
Posts: 4,928
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Re: Duramax/Allison downshift?
Quote:
If that hose is nasty to get to I doubt a shop would mess with it flushing the coolant. Surprising she got away with it from MT to MI and MI to CO towing a gooseneck with horses inside. She must be living right cause the good lord is looking out for her.
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1959 M35A2 LDT465-1D SOLD 1967 Dodge W200 B383, NP420/NP201 SOLD 1969 Dodge Polara 500 B383, A833 SOLD 1972 Ford F250 FE390, NP435/NP205 SOLD 1976 Chevy K20, 6.5L, NV4500/NP208 SOLD 1986 M1008 CUCV SOLD 2000 GMC C2500, TD6.5L, NV4500 2005 Chevy Silverado LS 2500HD 6.0L 4L80E/NP263 2009 Impala SS LS4 V8 RTFM... GM Parts Books, GM Schematics, GM service manuals, and GM training materials...
And please let us know if and how your repairs were successful. Last edited by hatzie; 04-21-2021 at 03:55 PM. |
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