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01-30-2005, 07:25 PM
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#1 |
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Registered User
Join Date: Nov 2002
Location: Spring TX
Posts: 113
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700R4 problem
85 Blazer, 350 and 700R4. 45,000 miles on 700R4 rebuild
Problem is while trying to cruise at 40-45 mph it keeps shifting between 3 and 4. Bouncing back and forth, shifts maybe twice per second. All other shifts are ok. Accelerating through this speed range all acts ok. 50 mph and above it stays in 4th and converter locked up. Got a good hard 1-2 shift. 40-45 mph is the only time it does this and that's the only problem there is. Trans fluid is red, does not smell burnt. Also it's not the lock up converter shifting in and out, if it were it would do it at other speeds above 50 mph. Is this the servo or the governor gear? TV cable is adjusted properly. Thanks in advance for your suggestions.
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350 Crate 10 bolt 3.73 2.5 lift 32x11.50 1904 Edelbrock http://www.oplnk.net/~spirit/K5front.jpg |
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01-30-2005, 08:46 PM
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#2 |
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Robert Olson Transport
 
Join Date: Oct 2002
Location: recent transplant to NC USA
Posts: 20,310
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im told that if you drop down the pan on these trans and you take down the filter under there is a sensor that locks up the torque converter . its like $45 at napa and it sounds like what is bad there
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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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01-31-2005, 11:12 AM
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#3 |
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Professional Beer Tester
Join Date: Aug 2004
Location: Louisiana
Posts: 453
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Don't know if it's your problem or not, but I have ran across a few 700's that I had to cheat the TV cable adjustment a little bit to make them act right. Good luck.
60-66 Nut
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60 Ford F100 Custom Cab 61 Apache Short Fleetside 64 C10 Short Stepside 65 C80 409 V8 5spd(X-Firetruck) 83 GMC 350 Olds Diesel 85 GMC Short Bed 86 GMC Short Bed 90 GMC R3500 Crew Cab 92 GMC 1500 |
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02-01-2005, 10:06 PM
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#4 |
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Right on the line, baby!
Join Date: Oct 2003
Location: Phila, PA 19130
Posts: 1,486
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a "little" more info
For some background info, you can check out this site:
<<http://www.tvmadeez.com/article/index.php>>
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83 GMC 406 th400/3.73 Eaton Truetrac posi, headers, x pipe, & racePros. Tubular control arms, lowering rear springs, caltracs. Still ugly, but getting built right, although slowly Click and scroll down for site vendors! Subscribe here! |
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