loud clunk any time i shift to reverse.. - Jeep Wrangler Forum

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Old 09-02-2014, 10:12 PM   #1
zachattack's Avatar
Join Date: Jul 2014
Location: PHX, AZ
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Question loud clunk any time i shift to reverse..

as it says I have a loud clunk any time I switch to reverse also when its on a steep incline like 30 degrees or so its a real b!t(# to get out of park.. I feel like I'm about to break some thing.. Yes its a auto bit once I get the 4.0 block and ax15 my buddy has ill be converting her to stick.. But any ideas in the mean time?

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Old 09-03-2014, 12:34 AM   #2
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When you park on the incline, hold your brake shift into neutral, apply parking brake, release your brake pedal, then shift into park. When you park on a hill your putting the weight of your jeep on the tranny. This should help a little.

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Old 09-03-2014, 01:46 AM   #3
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Checked your u-joints lately?
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Old 09-03-2014, 06:11 AM   #4
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that's what I was thinking todd
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Old 09-03-2014, 11:32 AM   #5
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Location: Ridgway, Pa.
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It could be a bad rear u-joint. It can also be an idle that is set too high allowing for a severe backlash when the gears are changed. AS was stated above, parking on an incline with an automatic requires the proper use of the emergency brake in order to take the stress off of the drivetrain.
'87 YJ, 4.2L built and bored, 8.5" of lift, 8.8 rear, AX15/NP 231, Tom Woods drive shafts, Flat fenders, 12,000LB winch, Custom bumpers, Rattle can paint job. Never completed...
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Old 09-03-2014, 11:48 AM   #6
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The difficulty to get out of park will certainly be magnified by the weight of the vehicle on an incline, Green Zombie has the right procedure to avoid binding up the parking pawl in the transmission.

I would also recommend checking the fundamentals of the system, do you have proper fluid level in your trans, is the fluid in good condition? The parking pawl of the transmission needs fluid to properly engage and disengage the castle lugs, and it might also be worth making sure you don't have any binding in your shift cable.

I am not familiar with the Jeep Auto trans cable, but typically any cable driven system is susceptible to dirt and rust and can benefit from an air purge and some lubrication (I like aerosol bike lube as it is formulated not to bind with dirt).

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