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 Tranny stuck in 3rd

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robotennis61
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Tranny stuck in 3rd Empty
PostSubject: Tranny stuck in 3rd   Tranny stuck in 3rd EmptyFri May 04, 2012 11:47 pm

tranny stuck in 3rd ARGHHHHHHHH!!!!!!!!!!!!!!!!!!!1WHAT IS IT????????
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LARRY70GS
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Tranny stuck in 3rd Empty
PostSubject: Re: Tranny stuck in 3rd   Tranny stuck in 3rd EmptySat May 05, 2012 9:01 am


_________________
98 Riviera SC3800  All stock except gutted air box.
1970 Buick GS455 Stage1, TSP built 470BBB, 602HP/589TQ
Best MPH, 116.06 MPH, Best ET, 11.54
https://www.youtube.com/watch?v=UHCda-t_Jls
https://www.youtube.com/watch?v=sfT2tEO4XcU
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robotennis61
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Tranny stuck in 3rd Empty
PostSubject: Re: Tranny stuck in 3rd   Tranny stuck in 3rd EmptySat May 05, 2012 4:37 pm

Man.thats a lot of info.Everything worked fine until I came up to a very short steep driveway coming out of one of the strip casinos.There was traffic on the incline so I put the car in 1st. I drove up the incline and out onto the street.I pulled into traffic to make my way to the far left of the blvd to make a left.I forgot I had her in 1st and when an opening presented,I gunned it.I was surprised at how hard she pulled!? I'm like WTF? then I remembered she was still in 1st.I shifted to drive and made the left hander after the light changed. about a mile or two down the road I felt a heavy thud coming from underneath the car.I came to a stop to check out some tires.After I was done I started her up and hit the road.I turned into the express lane and gave her some gas when I noticed how high the revs were,thats when I knew there was a problem.3rd all the way home.
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LARRY70GS
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LARRY70GS

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Tranny stuck in 3rd Empty
PostSubject: Re: Tranny stuck in 3rd   Tranny stuck in 3rd EmptySat May 05, 2012 5:39 pm

I thought maybe that would help. The Transmission is definitely the weak link in our cars. Might be time for a rebuild.

_________________
98 Riviera SC3800  All stock except gutted air box.
1970 Buick GS455 Stage1, TSP built 470BBB, 602HP/589TQ
Best MPH, 116.06 MPH, Best ET, 11.54
https://www.youtube.com/watch?v=UHCda-t_Jls
https://www.youtube.com/watch?v=sfT2tEO4XcU
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robotennis61
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robotennis61

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Tranny stuck in 3rd Empty
PostSubject: Re: Tranny stuck in 3rd   Tranny stuck in 3rd EmptySat May 05, 2012 5:43 pm

It does help.for sure.Thanks! I'll go over all that one at a time.I read somewhere that our trannys solenoids can be R&Rd without removing the tranny.I cant find the post.Question of cracking the case and servicing.I'll try to find it.
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robotennis61
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Tranny stuck in 3rd Empty
PostSubject: Re: Tranny stuck in 3rd   Tranny stuck in 3rd EmptySun May 06, 2012 3:47 am

Its actually tranny stuck in second.I hope I didnt pop a band or fry my clutches.
anybody have any ideas?
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deekster_caddy
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Tranny stuck in 3rd Empty
PostSubject: Re: Tranny stuck in 3rd   Tranny stuck in 3rd EmptySun May 06, 2012 7:18 am

This sounds like something broke, not a solenoid fix. I think BillBoost may have posted about replacing the solenoids but I can't find it.

My engine removal thread started with a radiator, I will see if I can find it.

I removed an engine/trans together from the bottom on a GTP. On my Riv I did the engine and trans seperately. When I dropped the GTP drivetrain, I removed the wiring harness/fluid lines etc, then unbolted the upper engine mounts and upper strut mounts, then the subframe bolts, lowered the subframe to the floor, then used my engine hoist w a chain around the front bumper and lifted the car up high enough to clear the engine. That was a car headed for the junkyard and I was looking for the fastest way out. No need to remove axles, etc, the engine and entire front suspension came out together. Not sure how well the Riv would appreciate being lifted by the bumper like that.
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deekster_caddy
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Tranny stuck in 3rd Empty
PostSubject: Re: Tranny stuck in 3rd   Tranny stuck in 3rd EmptySun May 06, 2012 7:20 am

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robotennis61
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Tranny stuck in 3rd Empty
PostSubject: Re: Tranny stuck in 3rd   Tranny stuck in 3rd EmptySun May 06, 2012 12:22 pm

thanks!
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robotennis61
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robotennis61

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Tranny stuck in 3rd Empty
PostSubject: Re: Tranny stuck in 3rd   Tranny stuck in 3rd EmptyMon May 07, 2012 4:32 am

The oddest thing happend to me tonight. I was moping around bummed that I might need a new trans or at least have to tear into the side cover and replace the solenoids.I popped the hood with every intention of diving into the FSM before bed and try and make sense of what was going on and why she began to act up.I looked over all the electrical connections,everything looked good there,I then jiggled the gear selector linkage when out of the blue I heard a loud POP! same kind of sound when you disconect an air tool. I jumped back and said"WTF!?" I looked over to the compressor thinking My hose just popped,wasnt that, I figured the sound had to have come from the trans,it could not have come from anyplace else! I thought this has got to be some kind of pressure lock I put the trans in when I gunned her across the road in 1st.I then took her out for a spin praying that my hunch was correct and it was! trans shifting into 3rd & 4th wailing her tits off on the highway! Cruze joy Thanking my lucky stars and gratfful that I was there to witness the trans coming out of some sort of pressure lock.Whew!!!
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Jamax
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Tranny stuck in 3rd Empty
PostSubject: Re: Tranny stuck in 3rd   Tranny stuck in 3rd EmptyMon May 07, 2012 10:50 am

WOW! Glad to hear it. But of course it leads (probably) all of us to wonder: WTF happened?
Perhaps someone here will chime in with an answer.
I can think of only one thing, but I have to ask 2 questions. Does the Riv have an outside governer? And if so, did you hear a sort of clanging noise coming from below afterwards? If the answer to both is "yes", then I have the answer.
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deekster_caddy
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Tranny stuck in 3rd Empty
PostSubject: Re: Tranny stuck in 3rd   Tranny stuck in 3rd EmptyMon May 07, 2012 12:22 pm

Robo Sounds like you are lucky on this one! I forgot you are '95/4T60E so some of my swap notes may not apply...
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Hometown Hero
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Tranny stuck in 3rd Empty
PostSubject: Re: Tranny stuck in 3rd   Tranny stuck in 3rd EmptyMon May 07, 2012 1:12 pm

Possibly shift solenoid/valve assembly in your trans. I'm changing 2 in my Bonnie (same trans) either today or on the weekend. They are only $20CAN each. GM part #24202614, lotsa work though. OOPS just noticed its working again in later comment, lol.
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robotennis61
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Tranny stuck in 3rd Empty
PostSubject: Re: Tranny stuck in 3rd   Tranny stuck in 3rd EmptyMon May 07, 2012 1:37 pm

@ Jamax.-Nope.No clanging.I stood by the driver side of the car pulling wires jiggling things around looking for a loose connection.Then I jiggled around the control cable and the linkage when I heard the PoP.Like a champagne bottle being uncorked.POP! It scared the shit outa me.But no clangly metal scary sounds.Just pure POp.

@Deek-Youre notes are invaluable.

@Klix- How are you gonna do that? I.ve been looking all over for the how to?
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Hometown Hero
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Tranny stuck in 3rd Empty
PostSubject: Re: Tranny stuck in 3rd   Tranny stuck in 3rd EmptyMon May 07, 2012 2:31 pm

I will post some pictures of a step by step for the forum. Basically I will have to start by removing the transmission oil with our suction tank, then the front drivers wheel. Pull the strut assembly and CV axle out. Then I should be able to access the backside housing of the transaxle. I have to seperate it there and swap out the solenoids (hopefully won't have to lower the sub frame) if the is enough space. then replace the gasket and bolt it back together. While i'm in there I am going to replace the strut mounting kit it will all be out anyways and the original is making that grinding and popping sound pretty bad now. I will hopefully get started on it this afternoon the shop is slow so I can get it on the hoist and have at it. quiet
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robotennis61
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robotennis61

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Tranny stuck in 3rd Empty
PostSubject: Re: Tranny stuck in 3rd   Tranny stuck in 3rd EmptyMon May 07, 2012 2:44 pm

Dude,If you dont make a pictorial I swear I'll send you a lifetime subscription to the Rangers Hockey fan club newsletter.
usa
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Hometown Hero
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Tranny stuck in 3rd Empty
PostSubject: Re: Tranny stuck in 3rd   Tranny stuck in 3rd EmptyMon May 07, 2012 6:32 pm

Coulnd't get at it today, to many vehicles trickling in. I will have to do it on a weekend. I'll make sure I bring the camera those days. lol
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robotennis61
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robotennis61

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Tranny stuck in 3rd Empty
PostSubject: Re: Tranny stuck in 3rd   Tranny stuck in 3rd EmptySat Oct 20, 2012 6:40 pm

Update on the stuck tranny:
There is a fail safe device somewhere in the trans. It kicks in when the trans gets too hot. It then sends you home in "Limp Mode" I did not know this.I figured it had something to do with a bad solenoid .
I should say the overheating issues began with the instalation of a trans cooler. It was a typical 4 row cooler from Jegs. It did not cool enough.I placed it in the best spot to get cold fresh air from close to the ground. I then replaced it with a Hayden trans cooler with integral fan. I wired it up and have the fan come on at 175 180 deg or so. i have not had a problem since.
I spoke to the reps over at Hayden( cool people) and i was informed that a transmission is not so sensitive to "Operating" temperature as an engine.So 175 to 180 is fine eventho our FSM tells us the Trans operating temp is 200deg.

Word to those who plan to install a trans cooler,make sure it has an integral fan or else.Limp home!
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AA
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Tranny stuck in 3rd Empty
PostSubject: Re: Tranny stuck in 3rd   Tranny stuck in 3rd EmptySat Oct 20, 2012 7:09 pm

Mine started doing that after I disabled my TCC lock-up. I don't think 200ºF is too hot for our trans, as most of us are running between 200-220ºF on summer days without loosing 4th gear. I think what triggers limp mode is how fast the temp rises when TCC is not locked-up. I've managed to run at 200ºF without losing 4th sometimes, and other times it cuts out as low as 177ºF. My trans cooler usually keeps trans temp below 185ºF, and I usually don't have a problem except on long trips.

Currently my best weapon against the occasional limp home mode (still very rare) is the Aeroforce gauge. In the event I just reset the PCM while driving, takes 5 secs and get 4th gear back for the remainder of the trip.

_________________
'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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robotennis61
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robotennis61

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Tranny stuck in 3rd Empty
PostSubject: Re: Tranny stuck in 3rd   Tranny stuck in 3rd EmptySat Oct 20, 2012 7:54 pm

yup

http://tinyurl.com/9vfkkou

you should hear that little bastard on a hot Vegas day...spinning its little heart away happy as can be!
wwhhrrrr
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Tranny stuck in 3rd Empty
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