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05-04-2015, 07:36 PM
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#1 |
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Registered User
Join Date: Dec 2014
Location: Coal City, IL
Posts: 695
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Another junkyard rescue
I just saved this 1985 C10 SWB from the junkyard. The only thing wrong with it is the transmission. It will not shift out of first unless I manually down shift it, then manually up shift it. It is a nicely optioned truck and didn't want to see it scrapped. It looks like a standard turbo 350 trans without any computer or TV cable.
My question is what are my fix options. I'm hoping it isn't anything mechanically wrong with the trans. And maybe it is just the vacuum line or the electrical connector on the vacuum line for the shift module.
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Tony Nicholas @ Midwest Metal Masters 1953 Chevy 3100 392 Hemi w/727 & 9” Ford 1985 Chevy C/10 6.0L 4L80 373 locker |
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05-04-2015, 08:07 PM
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#2 |
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Registered User
Join Date: Mar 2014
Location: Blossvale NY
Posts: 202
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Re: Another junkyard rescue
I wish I could offer some advice on the shifting issue, but I can't..
But I have to say, I cannot fathom why someone would scrap a truck like that!! Nice rescue! 
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Who needs a Hemi when ya got a Chevy! |
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05-04-2015, 08:34 PM
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#3 |
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Registered User
Join Date: Sep 2009
Location: Weare,NH
Posts: 1,592
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Re: Another junkyard rescue
Nice save!
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05-04-2015, 08:37 PM
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#4 |
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Vintage 4x4s
Join Date: Sep 2010
Location: Prior Lake, MN
Posts: 4,305
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Re: Another junkyard rescue
I like it!
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67 GMC K1500 Custom- 305V6 SM420, PTO, Ram Assist, yellow (the outcast) (project period correct upgrades) 67 GMC C2500 351V6 TH400, AC, PS, PB (can't decide what to do with. Update, decided to keep and will restore  )86 CHV K30 502 th400, apple red NEW 71 CHV K20 350 SM465, ochre (saved work truck) 71 CHV K20 292 SM465, white, tach, PTO, (future project) 72 CHV K20 350 350th, medium blue (project stocker) 01 CHV K2500hd crew, indigo blue ^3 dont run and the others don't see winter either '86 K30 Cummins "Fireside" thread: http://67-72chevytrucks.com/vboard/s...d.php?t=649649 '71 K20 "get driveable" thread: http://67-72chevytrucks.com/vboard/s...d.php?t=590642 '72 K20 Build Thread: http://67-72chevytrucks.com/vboard/s...=493477&page=6 |
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05-04-2015, 09:07 PM
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#5 |
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Registered User
Join Date: Mar 2008
Location: red deer alberta
Posts: 777
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Re: Another junkyard rescue
Check vacuum modulator and hose....
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05-04-2015, 09:55 PM
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#6 | |
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Registered User
Join Date: Jun 2012
Location: Minnesota
Posts: 509
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Re: Another junkyard rescue
Quote:
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05-04-2015, 11:00 PM
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#7 |
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Account Suspended
Join Date: Jun 2011
Location: Des Moines, IA.
Posts: 4,143
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Re: Another junkyard rescue
Its also worth dropping the trans pan to inspect the linkage arm that holds the end of the shift cable-if its adjusted (by previous owner) incorrectly (as is the case often with the install of aftermarket carbs) then at part and WOT the cable tension can actually break that cable linkage. It basically bolts to the valve body and actuates a small piston-if it breaks/ninds, no shifting out of first gear.....and sometimes not out of park either.
Another cause could be a sticking/bad governor....try removing it, wipe the inside of the bore with a rag soaked in clean trans fluid and reinstall the governor. These are just some things I've encountered myself. |
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05-05-2015, 01:28 PM
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#8 |
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Registered User
Join Date: Dec 2014
Location: Coal City, IL
Posts: 695
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Re: Another junkyard rescue
Thanks everyone. I'll check those things out. I also see the shifter is out of adjustment between the column indicator and trans.
__________________
Tony Nicholas @ Midwest Metal Masters 1953 Chevy 3100 392 Hemi w/727 & 9” Ford 1985 Chevy C/10 6.0L 4L80 373 locker |
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05-05-2015, 02:13 PM
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#9 |
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Registered User
Join Date: Oct 2014
Location: somewhere . . .
Posts: 974
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Re: Another junkyard rescue
local junk yard(s) may have a transmission for one ...
a friend of mine scored a 700R4 w/ a GM Good wrench tag ( remanufactured, I am guessing ) on one for 100.-
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dont want to hear excuses, i want to hear solution(s) |
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05-05-2015, 05:14 PM
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#10 |
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Registered User
Join Date: Dec 2014
Location: Coal City, IL
Posts: 695
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Re: Another junkyard rescue
I got the trans issue fixed. The short hose from the modulator to the steel line was split. I still have two more issues to solve. It pulls to the right when braking, and the high idle solenoid doesn't seem to move in or out.
Anyone know how to set the cold idle and how to set the hot idle on this electronic quadrajet carb? Thanks again for everyone's help.
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Tony Nicholas @ Midwest Metal Masters 1953 Chevy 3100 392 Hemi w/727 & 9” Ford 1985 Chevy C/10 6.0L 4L80 373 locker |
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05-05-2015, 05:27 PM
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#11 |
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Registered User
Join Date: Jan 2009
Location: Arkansas
Posts: 687
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Re: Another junkyard rescue
Wow, you really scored then!
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05-06-2015, 01:26 AM
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#12 |
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Registered User
Join Date: Jul 2004
Location: Braggs, okla
Posts: 161
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Re: Another junkyard rescue
with it pulling, I would pull the tire it is pulling to, check the rotor, brake pads, and remove dust cap for wheel bearings, inspect the grease, dirty, caked, dried out etc
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78 dualy crew cab wife calls "the beast" 79 silverado "yeller" 99 tahoe 02 Gmc sierra |
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05-06-2015, 01:27 AM
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#13 |
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Registered User
Join Date: Jul 2004
Location: Braggs, okla
Posts: 161
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Re: Another junkyard rescue
really nice save
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78 dualy crew cab wife calls "the beast" 79 silverado "yeller" 99 tahoe 02 Gmc sierra |
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05-06-2015, 12:13 PM
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#14 |
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Registered User
Join Date: Sep 2011
Location: Sweet, ID
Posts: 157
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Re: Another junkyard rescue
Would truly have been a shame to destroy something of value--way to common today. (Cash for clunkers) I'd drive that clunker any day!
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