2001 32RH Auto: Odd Shift Sound (P to R) - Jeep Wrangler Forum
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Old 08-11-2019, 04:14 PM
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2001 32RH Auto: Odd Shift Sound (P to R)

OK, I've had my transmission worked on CONSTANTLY from a local transmission shop. It started as a rebuild, but then I had to return every week for 5 weeks for persistent leaking. (It never leaked before the rebuild, but it did have trouble shifting sometimes.) New pan seal every week and a lot of head-scratching from the shop employees. They finally fixed the issue with a new pan and replacing a few small seals and things inside. They're still not sure what actually fixed the leak or where it was coming from, but it's fixed now, and that's what matters, I suppose. (What a nightmare!)

Anyway... I just got it back and the leaking is now fixed. It drives great around town and on the highway. However, I noticed that when I get in the Jeep and shift from park to reverse to back out of the driveway or parking space, it lets out a fairly loud PSSSHHHHHHHHHHH kind of pneumatic sound. (Like a sudden punctured tire.) I've never noticed this sound before, so naturally I'm wondering if it's (A) bad and (B) related to my recent transmission woes.

Any advice would be greatly appreciated.

Thanks in advance.

Regards,
Chris

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2001 TJ Wrangler Sport 4.0 Automatic with Dana 30/35, 4.10 Yukon Gears, BFG KO2 31" Tires, and Stainless Steel Bumpers (for a touch of Classic Retro).
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Old 08-12-2019, 10:14 AM   #2
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Checked The transmission fluid??
Block tires, run engine to normal operating temp, go thru gears, leave in N

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Old 08-14-2019, 07:48 PM   #3
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My tj’s are both manual, but my jk is auto and it makes an awful groan/squall when going into reverse from park. It’s a normal sound for a jk auto, and it’s the brakes. Is the sound your hearing the brakes?
https://www.wranglerforum.com/f274/w...-258286-2.html

Don’t know if the tj autos groan like that or not. Jk manuals don’t groan either.
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2004 Rubicon. OME 2.5” lift. 1” body lift. 33” MTs.
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Old 08-15-2019, 09:07 AM
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It's funny that you mention the brakes. On the first day that it happened, it only happened when shifting. My foot was constantly on the brake, and I shifted from P to R to P to R (etc) without ever lifting my foot off the brake. And with each shift from P to R, I heard the loud PSSSHHHHHHHHHHH sound. Since I wasn't pumping the brakes, I never thought the sound might be coming from the brakes. However, I tried it again on Tuesday morning, and the shifting made no noise at all. Everything was perfectly quiet when shifting from P to R. Only now, the brakes made that same loud PSSSHHHHHHHHHHH sound with every push to the floor. So I assume it was the brakes all along and not the transmission. Of course, I still wonder why the sound only came when I shifted and not from pumping brakes (since my foot never lifted off the brake pedal). Strange stuff to me. One of the reasons I've never tried understanding the mysteries of how cars work. Way too crazy and complex for my simple intellect. Best for me to leave it to the expert mechanics. :/

Thanks for the replies, everyone. I always value your insights. It's good to hear thoughts and opinions outside of my local repair shop.

Regards,
Chris
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