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 Loss of 4th Gear/Overdirve

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rivren
Member


Name : Ren Bortignon
Location : Metro Detroit, MI
Joined : 2010-06-08
Post Count : 51
Merit : 2

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PostSubject: Loss of 4th Gear/Overdirve   Loss of 4th Gear/Overdirve EmptyMon Jul 29, 2013 7:27 pm

My '95 Riv is running good but I have an issue with my '88 Oldsmobile Toronado. The transmission is not shifting into overdrive. A transmission repairman confirmed that gears 1,2 & 3 are working properly as well as the Torq Converter Clutch. He is telling me the 4th gear teeth are worn down. I believe I lost 4th gear about 2 weeks ago. I didn't even notice. I had absolutely no slipping or prior warning. My concern is to pay for mechanical transmission repair when it could be electrical. I pulled the code EO39 which relates to the TCC. The manual reference a 15amp fuse which I confirmed is good and the brake switch which could play a role. I asked the repair guy while we were doing a test drive about the brake switch and he said it and the TCC were working properly. I'd appreciate any thoughts or suggestions.
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rivren
Member


Name : Ren Bortignon
Location : Metro Detroit, MI
Joined : 2010-06-08
Post Count : 51
Merit : 2

Loss of 4th Gear/Overdirve Empty
PostSubject: Re: Loss of 4th Gear/Overdirve   Loss of 4th Gear/Overdirve EmptyFri Aug 16, 2013 11:05 pm

in case anyone is interested, I salvaged a 77k trans and had my mechanic swap it out. it's been 2 weeks and 500 miles and the 1988 olds toro is running strong in R or 1 or 2 or 3 or 4th gear.
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AA
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AA

Name : Aaron
Age : 42
Location : C-bus, Ohio
Joined : 2007-01-13
Post Count : 18370
Merit : 241

Loss of 4th Gear/Overdirve Empty
PostSubject: Re: Loss of 4th Gear/Overdirve   Loss of 4th Gear/Overdirve EmptyFri Aug 16, 2013 11:32 pm

Great news. Thanks for the update!

_________________
'98 SC Riviera • 281k miles • 298 HP/370 TQ • 0-60: 5.79s • ET: 13.97 @ 99.28 • 4087 lb • 20.1 avg MPG • Nelson Ledges Lap: 1:30
3.4" pulley • AL104 plugs • 180º t-stat • FWI w/K&N • 1.9:1 rockers • OR pushrods • LS6 valve springs • SLP headers • ZZP fuel rails
KYB GR2 struts • MaxAir shocks • Addco sway bars • UMI bushings • GM STB • Enkei 18" EV5s w/ Dunlop DZ101s • F-body calipers
EBC bluestuff/Hawk HP plus • SS lines • Brembo slotted discs • DHP tuned • Aeroforce • Hidden Hitch

^^^ SOLD ^^^ frown

'05 GTO • 85k miles • 0-60: 4.8s • 16.9 avg MPG • Nelson Ledges Lap: 1:26
Because fun


'70 Olds Ninety-Eight Holiday Coupe • 116k miles • 455 Rocket V8
Because cool


'95 Celica • 152k miles • 0-60: yes
Because free
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Loss of 4th Gear/Overdirve Empty
PostSubject: Re: Loss of 4th Gear/Overdirve   Loss of 4th Gear/Overdirve Empty

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