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  #1  
Old 11-07-2010, 09:10 PM
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Mama's 300D
 
Join Date: Jan 2008
Location: Missouri
Posts: 482
81 300D tranny slippage getting worse- Help, please.

The 81 has been doing great all summer, as usual, and is now starting to slip, (as in, not kicking in till higher rpm's or letting off the gas even more than usual to bump up a gear). This time it seems to be a little worse than the normal change of seasons situation. I changed the fluid and filter in the spring, and have been checking the oil level (The wife says if the oil is low, the transmission doesn't shift as well.) Does anybody have a suggestion as to what might need to be addressed first? (Second, third??) Thanks!
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1951 Chevy 3100

2003 Indian Chief Roadmaster

1983 GMC 1 ton Dually

1982 Chevy 1 ton Dually, service body (sold)

'90 GMC Suburban 6.2 "SS Veg-Burban"
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'81 300D ~ Mama's car...my job (now my car)(but still my job) SOLD

'83 300sd ~ rescue car SOLD

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  #2  
Old 11-08-2010, 01:37 AM
Registered Hack
 
Join Date: Mar 2008
Posts: 4,601
she is right!

check the fluid again

then mess with the adjustable cable that attaches to the throttle on the passenger side of the engine. That will help with shift timing.

if adjustments can't bring all the shifts into range of eachother, it may time for a 'Superior Shift Kit'.
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  #3  
Old 11-08-2010, 06:28 PM
showme's Avatar
Mama's 300D
 
Join Date: Jan 2008
Location: Missouri
Posts: 482
Fluids good. thanks. anybody else?
__________________
"Knowing is not enough, we must apply.
Willing is not enough, we must do." Goethe

***********************************


1951 Chevy 3100

2003 Indian Chief Roadmaster

1983 GMC 1 ton Dually

1982 Chevy 1 ton Dually, service body (sold)

'90 GMC Suburban 6.2 "SS Veg-Burban"
(single tank WVO\diesel conversion) SOLD

'81 300D ~ Mama's car...my job (now my car)(but still my job) SOLD

'83 300sd ~ rescue car SOLD

2005 Ford Taurus (Mama's new car)(NOT my job!)
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  #4  
Old 11-08-2010, 06:49 PM
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Join Date: Dec 2006
Location: Eastern Mass
Posts: 231
Look for vacuum leaks. Could be with colder weather vacuum connections/hoses are stiffer and don't seal as well.Would make for harder shifts.
Though I think the Bowdin cable should also be cheked and or adjusted.
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