Installed tranny cooler now won't shift out of first gear - JeepForum.com
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Unread 04-29-2015, 09:58 PM   #1
fugitive
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2000 TJ Wrangler 
 
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Location: houston, tx
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Installed tranny cooler now won't shift out of first gear

I have the 32rh which was completely rebuilt about a year and a half ago along with the vent relocation. It's been operating normally since rebuild. Today I installed a core in front of the radiator and tied in after the stock trans cooler. On the first drive it shifted into second but not third. Then only first, regardless of 1,2 or D. Fluid level is fine. My only thought is that a piece of debris may have been in the core or one of the hoses and was sent back to the transmission via the return line. Is there anything I can check before taking back to the trans shop? Thanks.

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Unread 04-29-2015, 10:14 PM   #2
Knuckelhead
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You can disconnect the transmission line and run the engine with the transmission shifter in neutral to check fluid flow. The forward most fluid line on the transmission is the output, the rear mounted line in the input. You didn't by chance add an external filter in your efforts?

For convenience you can disconnect the fluid lines at the radiator...
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Unread 04-29-2015, 10:23 PM   #3
fugitive
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No extra filter added. Running the stock filter with a deep sump pan. Perhaps 4000 miles on ATF+4.
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Unread 04-29-2015, 10:44 PM   #4
Knuckelhead
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A collapsed inner fluid line can stop fluid flow, check the fluid flow to and from the transmission...
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