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#1 |
Registered User
Join Date: May 2011
Location: Texas
Posts: 984
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I'm wondering what's wrong with my truck. Sometimes when I put it in reverse it moves forward a smidge for a second. Could this be because I need rear main seals, or is my trans about to kick the bucket. Could it also be not enough fliud.
Thanks. 84 305 Posted via Mobile Device |
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#2 |
Registered User
Join Date: Feb 2011
Location: Leesville, LA
Posts: 157
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Re: Is it slipping? Please, help with advice...
Like you said, probably not enough fluid in the transmission. Hope it's that, anyway.
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#3 |
Robert Olson Transport
![]() Join Date: Oct 2002
Location: recent transplant to NC USA
Posts: 20,288
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Re: Is it slipping? Please, help with advice...
its prolly not enough fluid, but never overfill... are you on an incline? every automatic trans i have wil roll back a little when im on a hill with the nose higher than the rear if i let go of the brake and idle some ,and its perfectly normal
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Bob 1951 International running on a squarebody chassis "If a man's worth is judged by the people he associates himself with, then i am the richest man in the world knowing some of the fine people of this board" http://67-72chevytrucks.com/vboard/a...t.php?f=25&a=9 (you can review the site rules here!) PM Me for your vehicle/parts hauling needs in the North East US or see my Facebook page Robert Olson Transport Live each day to the fullest.. you never know when fate is going to pull the rug out from under you... I hate cancer!! |
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#4 |
Registered User
Join Date: May 2011
Location: Texas
Posts: 984
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Re: Is it slipping? Please, help with advice...
Not on a hill, walmart parking lot. It could very well be to much fluid, because when I had the trans dipstick seal replaced the guy took a lot of fluid out and said it was too much in there. Its like always leaking due to needing seals.
So, my question is how to tell if there's too much fluid, because looking at the dip stick it doesn't go pass the line. How is that possible? Should I drain the fluid and add new to be sure it has the rignt amount? Thanks. Posted via Mobile Device |
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#5 |
Registered User
Join Date: May 2009
Location: Motor City
Posts: 9,194
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Re: Is it slipping? Please, help with advice...
Are you checking the fluid level properly? It's not like an engine, where you pull the dipstick with the engine off. Adding trans fluild with the engine off will result in an overfull situation.
Here's how I do it, just in case: a) Engine idling in Park b) Pull the trans dipstick and without looking at it wipe it off. c) Reinsert dipstick d) Get in the vehicle; cycle slowly through Reverse, Neutral, Drive, Neutral, Drive, Reverse and back to Park; foot on the brake, vehicle stopped. Give it a chance to hit each gear as you make the selection. e) Hop back out, pull the dipstick and take a look at the fluid level shown f) Add as necessary (taking fluid out is a problem). K
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Chevrolet Flint Assembly 1979-1986 GM Full Size Truck Engineering 1986 - 2019 Intro from an Old Assembly Guy: http://67-72chevytrucks.com/vboard/s...d.php?t=342926 My Pontiac story: http://forums.maxperformanceinc.com/...d.php?t=560524 Chevelle intro: http://www.superchevy.com/features/s...hevy-chevelle/ |
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#6 | |
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Join Date: Apr 2012
Location: Tuscaloosa, AL
Posts: 131
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Re: Is it slipping? Please, help with advice...
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#7 |
Registered User
Join Date: May 2009
Location: Motor City
Posts: 9,194
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Re: Is it slipping? Please, help with advice...
Yes - good catch.
Cfan10 - I should have apologized in advance in the event I was telling you something you already knew - K
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Chevrolet Flint Assembly 1979-1986 GM Full Size Truck Engineering 1986 - 2019 Intro from an Old Assembly Guy: http://67-72chevytrucks.com/vboard/s...d.php?t=342926 My Pontiac story: http://forums.maxperformanceinc.com/...d.php?t=560524 Chevelle intro: http://www.superchevy.com/features/s...hevy-chevelle/ |
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#8 | |
Registered User
Join Date: May 2011
Location: Texas
Posts: 984
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![]() Quote:
The guy that changed the dipstick seal, drained about a quart of trans fluid. He said it was way too much fluid. Was he right because when I shift to reverse it moves forward a bit. Posted via Mobile Device |
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#9 |
Registered User
Join Date: Dec 2011
Location: Elkhart, IN
Posts: 1,308
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Re: Is it slipping? Please, help with advice...
Sorry not trying to jack your forum, but will autotrans not go into gear if there is no fluid in it?
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1985 Chevrolet K10 Custom Deluxe---SOLD 1997 Ram 2500 5.9 Cummins 1985 Chevrolet Camaro Z28 1987 Chevrolet K10 Silverado "The Beast" build 1987 Silverado http://67-72chevytrucks.com/vboard/s...=1#post6150257 |
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#10 | |
Registered User
Join Date: May 2009
Location: Motor City
Posts: 9,194
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Re: Is it slipping? Please, help with advice...
Quote:
K
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Chevrolet Flint Assembly 1979-1986 GM Full Size Truck Engineering 1986 - 2019 Intro from an Old Assembly Guy: http://67-72chevytrucks.com/vboard/s...d.php?t=342926 My Pontiac story: http://forums.maxperformanceinc.com/...d.php?t=560524 Chevelle intro: http://www.superchevy.com/features/s...hevy-chevelle/ |
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#11 |
Registered User
Join Date: Dec 2011
Location: Elkhart, IN
Posts: 1,308
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Re: Is it slipping? Please, help with advice...
How would it burn up if it doesn't go into gear?
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1985 Chevrolet K10 Custom Deluxe---SOLD 1997 Ram 2500 5.9 Cummins 1985 Chevrolet Camaro Z28 1987 Chevrolet K10 Silverado "The Beast" build 1987 Silverado http://67-72chevytrucks.com/vboard/s...=1#post6150257 |
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#12 |
Registered User
Join Date: Mar 2011
Location: Dallas, Texas
Posts: 920
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Re: Is it slipping? Please, help with advice...
It does go into gear, it just doesn't turn the output shaft because there's no fluid to provide friction. I'm gonna chime in here and say worn out differential gears. My K10 does this anytime you change gears (Fwd to Rev, Park to Fwd, Park to Rev) and it's because there's a lot of play in the diff gears.
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1955 Chevy 3600 http://67-72chevytrucks.com/vboard/s...61#post8589061 |
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#13 |
Registered User
Join Date: Dec 2011
Location: Elkhart, IN
Posts: 1,308
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Re: Is it slipping? Please, help with advice...
So it basically strips out the output shaft?
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1985 Chevrolet K10 Custom Deluxe---SOLD 1997 Ram 2500 5.9 Cummins 1985 Chevrolet Camaro Z28 1987 Chevrolet K10 Silverado "The Beast" build 1987 Silverado http://67-72chevytrucks.com/vboard/s...=1#post6150257 |
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#14 |
Registered User
Join Date: Mar 2011
Location: Dallas, Texas
Posts: 920
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Re: Is it slipping? Please, help with advice...
No, not at all. There are bands inside the transmission...like big belts you would win in wrestling, that are used to pull against drums to engage the forward and reverse gears. The tranny fluid is integral to keeping these bands from wearing down like worn out sand paper, as well as lubricating the rest of the transmission.
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1955 Chevy 3600 http://67-72chevytrucks.com/vboard/s...61#post8589061 |
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#15 |
Registered User
Join Date: Dec 2011
Location: Elkhart, IN
Posts: 1,308
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Re: Is it slipping? Please, help with advice...
Okay thanks, see I tried to learn this stuff, but I guess the best way to learn is by others. Thanks a lot, and sorry cfan10 for jacking your thread.
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1985 Chevrolet K10 Custom Deluxe---SOLD 1997 Ram 2500 5.9 Cummins 1985 Chevrolet Camaro Z28 1987 Chevrolet K10 Silverado "The Beast" build 1987 Silverado http://67-72chevytrucks.com/vboard/s...=1#post6150257 |
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#16 | |
Registered User
Join Date: May 2011
Location: Texas
Posts: 984
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#17 |
Registered User
Join Date: Mar 2011
Location: Dallas, Texas
Posts: 920
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Re: Is it slipping? Please, help with advice...
I learned everything I know about trannys rebuilding the transmission out of the Ford Ranger I used to have. Being broke and unable to pay a shop to do, I printed out a 200+ page "How-to" thread somebody had made detailing to the extreme how to rebuild it. The guy that bought it off me went and had it rebuilt again after I told him I did the rebuild. What the hell is the point in replacing all the brand new parts I just put in there when they're working fine?
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1955 Chevy 3600 http://67-72chevytrucks.com/vboard/s...61#post8589061 |
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#18 |
Registered User
Join Date: Dec 2011
Location: Elkhart, IN
Posts: 1,308
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Re: Is it slipping? Please, help with advice...
Yep that's how I am, will either successfully rebuild it or destroy it and have to buy a new tranny...
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1985 Chevrolet K10 Custom Deluxe---SOLD 1997 Ram 2500 5.9 Cummins 1985 Chevrolet Camaro Z28 1987 Chevrolet K10 Silverado "The Beast" build 1987 Silverado http://67-72chevytrucks.com/vboard/s...=1#post6150257 |
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