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Unread 10-10-2013, 07:38 PM   #1
Gearhead31
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1995 ZJ 
 
Join Date: Feb 2012
Location: St Pete, Florida
Posts: 1,921
zj trans problem

So I have less than 20k mi on a trans rebuild. The shop is now closed up so I can't have them check it out again to see if they messed up. I think I got shafted by them..

So there is a couple random erratic shifting problems I'm having, first is around ~12mph, it rapidly kicks between first and second but usually after 30+min of driving and only once in a while. Second, once every couple weeks or so, when I floor it to try to merge around heavy traffic on the freeway, it likes to start kicking very rapidly between 3rd and "4th" until I ease off the gas, then it acts perfectly fine until the next time a week or so later. I'm not sure when it started but I can't check the level of the trans fluid. When hot and checking it like i should be, it's slightly frothy and jumps up 2 1/2" above the full line. When the shop did the rebuild, it was supposed to be a full service, and I'm pretty sure I was charged for a full service(rebuild, sensors, filter, the works). I'm at a loss, did they jip me money and leave me screwed for another sensor replacement job or is there something worse off(that fluid issue has me kinda freaked out and worried about my baby).
Forum search shows sensors would most likely cause the shifting issues but they were supposed to be replaced, so idk. I don't know if I can really trust that shop much. What they did right for other work was great but I've found other things they screwed up that even a half wit wouldn't do and they were a fully licensed shop with like 16 certifications

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1995 ZJ ltd, 4.0 i6, *cough stock cough* 253,xxx and still pumping strong
1998 Chevy Cheyenne K1500, 5.7L Vortec, mostly stock
*In peace, sons bury their fathers. In war, fathers bury their sons. - Herodotus
[QUOTE=JasonStebbins]We can call it the Whoosh King Catalog System. :D[/QUOTE]
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Unread 10-10-2013, 07:59 PM   #2
ZeeJay1997
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1997 ZJ 
 
Join Date: Dec 2008
Location: Sweet Home, Alabama
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When hot and checking it like i should be, it's slightly frothy and jumps up 2 1/2" above the full line.

if the vehicle is level, fluid hot and in neutral (not park), you have an over filled transmission.
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Unread 10-11-2013, 09:05 AM   #3
kjc
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1993  
 
Join Date: Oct 2013
Location: Blue Springs, MO
Posts: 6
X2 what ZeeJay1997 said.. I'd find a piece of hose that'll fit down the dipstick tube and suck out a few pints. Easier than dropping the tranny pan. Put it in a clean container so you can add some back if needed. Clear hose probably best (ATF is NOT very tasty even when fresh)
After you get the correct level, test drive to see if it behaves correctly. If not, I'd adjust your TV cable. It's easy to do, and if not adjusted properly CAN cause damage to your tranny.
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Unread 10-11-2013, 09:11 AM   #4
KJK
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1998 ZJ 
 
Join Date: Jan 2007
Location: Dallas, Texas
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It's probably the governor pressure sensor and/or the solonoid as you suspect. There is a Borg-Warner part available that is more robust and a direct replacement. See it here.
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Unread 10-15-2013, 08:40 PM   #5
Gearhead31
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Location: St Pete, Florida
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O_o for some reason, the reply I posted never published....
Thanks for the info. I'll start on the simplest fixes and go from there. I'm going to avoid the shops here like the plague from now on. Simple things are getting screwed up and time after time, shop after shop...
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1995 ZJ ltd, 4.0 i6, *cough stock cough* 253,xxx and still pumping strong
1998 Chevy Cheyenne K1500, 5.7L Vortec, mostly stock
*In peace, sons bury their fathers. In war, fathers bury their sons. - Herodotus
[QUOTE=JasonStebbins]We can call it the Whoosh King Catalog System. :D[/QUOTE]
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Unread 10-15-2013, 08:45 PM   #6
Gearhead31
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1995 ZJ 
 
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Location: St Pete, Florida
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sorry for the late reply, I've been crazy busy finishing a trailer build, installing a splice-in trailer light kit(OMG WHAT A PITA), and taking care of business and such.
__________________
1995 ZJ ltd, 4.0 i6, *cough stock cough* 253,xxx and still pumping strong
1998 Chevy Cheyenne K1500, 5.7L Vortec, mostly stock
*In peace, sons bury their fathers. In war, fathers bury their sons. - Herodotus
[QUOTE=JasonStebbins]We can call it the Whoosh King Catalog System. :D[/QUOTE]
Gearhead31 is offline   Reply With Quote




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