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#1 |
Registered User
Join Date: Jun 2014
Location: Tahuya WA
Posts: 570
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My friend stopped by tonight and told me that his ('78?) Chevy 4X4 is broke down sitting on the side of the road.
![]() Said he went up a small hill on his way to work this morning and he felt the transmission slip a little, then shortly thereafter the trans. quit pulling altogether. Locked in the front hubs which didn't help. Knowing how good my friend (we'll call him Mr. Maintenance) is at keeping up on fluid levels, I assumed the trans. fluid was low without first checking the stick and added about 1 1/4 quarts of fluid. Now the fluid is about 1 1/4 quarts too full ![]() After I towed him home in my cool '69 C10 Stepside, ![]() Of course the pan doesn't have a drain plug, so I get to remove some pan bolts to drain off some excess fluid too. ![]() He said it never slipped before today and I know he does drive it like a little old lady. What should I be checking next? ![]() ![]() |
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#2 |
Proprietor of Dale's Corner
![]() Join Date: Nov 2012
Location: Vacaville , CA
Posts: 16,103
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Re: BRL's Chevy Towing Inc.
Smell the fluid..does it smell or look burnt?
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"Some Days Chickens And Some Days Feathers" Dale XNGH ECV Sam Brannan 1004 R.I.P. 67ChevyRedneck R.I.P. Grumpy Old Man |
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#3 |
Old member
Join Date: Jan 2002
Location: Liberty, & Garden City S.C. , U.S.
Posts: 19,936
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Filter inside the trans stopped up. Pump quit pumping.
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1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 ![]() Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs. |
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#4 |
Registered User
Join Date: Jun 2014
Location: Tahuya WA
Posts: 570
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Re: BRL's Chevy Towing Inc.
I'm thinking that may be a strong possibility.
Friend says he doesn't have reverse either, and it seems strange to me that clutch or band damage would eliminate all gears at once without any grinding noise or any other obvious signs of internal damage. Checked the trans fluid this morning like Ol Blue K20 suggested, by dripping a little from the stick onto a white piece of plastic, and while it is dark and in need of a complete flush, it did not smell burned. Obviously I'm going to have to drop the pan and see what's going on in there. ![]() He just bought the truck from a co-worker fairly recently, and the engine runs and idles pretty good...I epically like how the air filter lid is reversed because the snorkel is positioned to suck hot air directly from the radiator. ![]() Thanks for the suggestions guys. ![]() ![]() |
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#5 |
Registered User
Join Date: Jan 2011
Location: Chattanooga, TN
Posts: 2,151
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Re: BRL's Chevy Towing Inc.
Front pump broke in the TH350. It happens.
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'83 K20-TPI '73 C10 '79 C10-ex-diesel(SOLD) '07 Tahoe(Son driving) '14 Suburban-DD '71 C10-current project |
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#6 |
Parts and more parts
Join Date: Nov 2003
Location: Lebo, Kansas (middle of nowhere
Posts: 6,821
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Re: BRL's Chevy Towing Inc.
Agree on the front pump breakage issue.
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Frank |
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#7 |
Registered User
Join Date: Jun 2014
Location: Tahuya WA
Posts: 570
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Re: BRL's Chevy Towing Inc.
Could I just disconnect one of the cooler lines to see if the pump is working?
How difficult is it to replace if that does turn out to be the problem? Any special tools required? ETA: Of course rather than ask you for the answer to those questions I suppose I could just re-read this book. But if I recall correctly, the last time I looked over the contents of this book I realized that I would probably be better off just getting a rebuilt transmission. ![]() ![]() Last edited by BRL; 08-21-2014 at 11:39 AM. |
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#8 |
Registered User
Join Date: Jun 2014
Location: Tahuya WA
Posts: 570
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Re: BRL's Chevy Towing Inc.
Interesting development:
When I towed my friends tuck home the other night, we had left it out in front of his house. This morning we were all set to push it down the driveway, and he decided to start the engine so he could make use of the power steering. He put the trans. directly into neutral, and just for the heck of it I said "put it into reverse"...and reverse did engage, ![]() Still no forward gears though. ![]() Told him he could drive it to work backwards in a pinch. ![]() ...well at least I got a laugh out of it... Dropped the pan and there wasn't too much of the typical clutch and band debris sitting in there, but the filter itself looks pretty nasty. Every turbo 350 filter I've ever inspected was either a fine nylon or brass screen, but this one seems to be made up of some kind of fibrous cloth material. Anyway tonight he should come home from work with a filter kit and some fluid and I'm keeping my fingers crossed but... ![]() |
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#9 | |
Registered User
Join Date: Jun 2014
Location: Tahuya WA
Posts: 570
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Re: BRL's Chevy Towing Inc.
Quote:
Still has reverse but no forward gears. ![]() Time to consider the possibility of costly repair at a shop. |
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