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Unread 04-16-2013, 05:35 PM   #1
Millhouse
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1970 FSJ Wagoneer 
 
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70 Wagoneer Tranny Slippage

Hey gang. So, now that the Waggy is running top notch, the tranny has started to slip. I have reverse, and when I put it in drive, it doesn't want to shift up. The fluid is at a good level and seems to look clean.

Any suggestions?

Thanks!

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Unread 04-16-2013, 11:47 PM   #2
Dr. Marneaus
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Rebuild it.

if you choose to DIY, a Turbo400 kit is like $250 plus maybe $50 in fluid and $90 for a torque converter.

http://www.summitracing.com/parts/sum-705021

If you choose to have it done by a shop, it'll be somewhere in the ballpark of $700-$900 most likely.

only other thing I can suggest is checking the governor, but that seems less likely.
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Unread 04-17-2013, 02:56 AM   #3
RockRollin
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Check the vacuum modulator. Also the governor could be apple cored.
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Unread 04-17-2013, 01:28 PM   #4
Dr. Marneaus
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Quote:
Originally Posted by RockRollin View Post
Check the vacuum modulator. Also the governor could be apple cored.
even without the vacuum modulator disconnected the thing should still shift.
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Andrew - Landscape architect in training. Not landscaper

If guns kill people, then pencils misspell words, cars make people drive drunk, and spoons made Rosie O' Donnell fat!

"One of the best ways to get yourself a reputation as a dangerous citizen these days is to go about repeating the very phrases which our founding fathers used in the great struggle for independence" - Charles Austin Beard

Quote:
Originally Posted by revelc View Post
Having a Full Size Jeep is likehaving a hot wife. When you take her out in public it turns heads, they can insight jealousy, you could look at them all day, they require a lot of attention, cost a lot to get them to do what you want them to do, but when they're not happy you'll be cussing, throwing things, and constantly weighing how much you'll lose if you divorce her.

The Beast Build Thread: Marns '73 Wagoneer Thread ----- The Camper Build Thread: Marns 1980 Jayco JayFinch6 Build Thread

Gone but not Forgotten: 97 TJs Build Up.
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Unread 04-17-2013, 01:38 PM   #5
RockRollin
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It doesn't downshift due to high vacuum conditions. Low vacuum can hold it in first.
I'm at 90% on the governer anyhow.
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Clawed: 90GW, TFI, Streetfire, 3"lift all spring, working RKE,
Edel2131, Holly 1850, mild cam (105º) 13mpg for now.
"Its a Jeep thing, and I still don't understand"
05 Renegade OME 927, 947, top plate, JBA 4.5s ,ST/MAXX 245/75/16
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Unread 04-21-2013, 07:19 AM   #6
Millhouse
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RockRollin was correct. Thanks dude! The vacuum line from the intake to the modulator practically crumbled when I took it off. Must have been sucking air.

It works great and am sure glad I don't have to rebuild it. (yet)

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Unread 04-21-2013, 08:01 AM   #7
RockRollin
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I like a low dollar fix for what seems like a high dollar malfunction.
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Clawed: 90GW, TFI, Streetfire, 3"lift all spring, working RKE,
Edel2131, Holly 1850, mild cam (105º) 13mpg for now.
"Its a Jeep thing, and I still don't understand"
05 Renegade OME 927, 947, top plate, JBA 4.5s ,ST/MAXX 245/75/16
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Unread 04-21-2013, 12:02 PM   #8
revelc
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Quote:
Originally Posted by RockRollin
I like a low dollar fix for what seems like a high dollar malfunction.
X2 Makes me want to fist pump for people when it happens.
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Unread 04-21-2013, 07:48 PM   #9
ghcoe
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That is why I work on my own vehicles. They would have told you it was a bad transmission and charged you a rebuild even if they did find the simple problem.
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Unread 04-24-2013, 08:13 PM   #10
super98lsc
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Good call! caught this late had same issue in the Stingray when the damned line came off after a hard launch, I thought I smoked some more hard parts such a great feeling when you find out its not. My worse was an honest mid 10 sec 383 IROC-Z, I dragged a Viper at the Texas Motorplex and won... idling off the track I feel vibrations, missfiring, and worse a nasty death knock. Turned out I ripped the trans crossmember right out of the lousy F body paper thin "frame" and the trans was hanging by 3-4 threads of 1 of the 4 bolts. It knocked the HEI off when the engine tilted back to the firewall. We screwed it back in with 4 self tapping screws and drove it home. Later installing a huge plate on the interior under the carpet then bolting the trans through it to distribute the load. I thought I had just lost a 10k Rher-Morrison 383.
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Unread 04-25-2013, 05:10 AM   #11
revelc
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Quote:
Originally Posted by super98lsc
Good call! caught this late had same issue in the Stingray when the damned line came off after a hard launch, I thought I smoked some more hard parts such a great feeling when you find out its not. My worse was an honest mid 10 sec 383 IROC-Z, I dragged a Viper at the Texas Motorplex and won... idling off the track I feel vibrations, missfiring, and worse a nasty death knock. Turned out I ripped the trans crossmember right out of the lousy F body paper thin "frame" and the trans was hanging by 3-4 threads of 1 of the 4 bolts. It knocked the HEI off when the engine tilted back to the firewall. We screwed it back in with 4 self tapping screws and drove it home. Later installing a huge plate on the interior under the carpet then bolting the trans through it to distribute the load. I thought I had just lost a 10k Rher-Morrison 383.
I would have dropped to my knees and thanked God on that one
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