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Jeep Wrangler shudders/stalls when put in gear after cold start

Motor Vehicle Maintenance & Repair Asked on August 31, 2020

I have a 2012 Jeep Wrangler Unlimited auto trans, around 80,000 miles.

This started a few months ago. When I start it cold, like after sitting overnight, it starts fine, sounds fine.

But when I put it in gear (D or R), it either shudders and RPM’s drop and feels like it’s going to stall, or it actually stalls. It usually does a full stall when it’s really cold (like below 30 degrees). Otherwise, it does the shudder.

When it stalls, it starts right back up, and then it is OK – I can put it in gear and it acts normally.

The only other thing, potentially related, is that it seems to run a little rough when moving very slowly (like < 5 mph). But at idle it seems OK.

I changed the transmission fluid, and that made no difference.

Any ideas about what to look at?

2 Answers

Chrysler has found the torque converter is a problem going into lock up mode when putting in reverse making it sputter shudder and stall

Answered by Jay on August 31, 2020

Yes Bevan go to the link below To page 21-528 about half way down the page it shows Engine stalls when shifting into r or d It will show no codes the techs need to read the manual not there tester as usual

http://www.lx.abodiesonline.com/Manuals/NAG1%20Manual.pdf

Answered by Jay on August 31, 2020

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