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Old 10-04-2009, 08:23 PM   #1
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Transmission noise, and heat problem

I have a lifted 04 wrangler , 3" body and 4" suspension on 35" tires. Whenever my jeep is idling there is a noise that comes from the transmission area, and also whenever the clutch is ppressed it kinda gets a little louder. Spoke with the local off road shop and he says that jeeps just have loud transmissions when they are lifted and nothing sounds unordinary. Also, mechanic said it checked out and is in great shape for an 04 with 40k miles. I was just wondering If anyone else has thos issue, and if when they shift into 1 or 2 gear it kinda clunks/grinding noise, like it's missing the gear or maybe my shifter needs to be extended??

Also, whenever i drive the jeep and the engine/transmission warms up there is an EXCESSIVE amount of hot air being blown into the cabin near the driver and passenger feet, is there a way to stop this air from coming in??

Thanks guys n gals

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Old 10-04-2009, 08:32 PM   #2
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there is a noise when the jeeps stands and when idling without an engaged gear?
and when you press the clutch it becomes a bit less noisy?
that sounds normal to me. I had the same with my old wranglers with manual tranny.

with a 3" BL you need to extend the shifter stick.

two of the air outlets of the heating are beside the driver and passenger feet in the center of the jeep.

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Old 10-04-2009, 10:02 PM   #3
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I know the a/c vents for the feet are in front of the shifter, but there is excessive air coming from around there, maybe by the shifter as well... It's not coming from the air vents themselves
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Old 10-06-2009, 06:02 PM   #4
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Humm, mine is not lifted and it make a horrible noise in neutral when I let out the clutch. It like something rattling and loud.. This is normal??? It get less noticeable with more rpms..

Bill
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Old 10-06-2009, 06:58 PM   #5
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The TJ's transmissions are for trucks so they are louder by nature than car transmissions are. Extra tranny noise at idle when you're not stepping on the clutch pedal is perfectly normal since the transmission input shaft and gears are spinning whenever you're not holding the clutch pedal down.

Doing such a tall body lift (3" body lifts are bad news) changes the airflow underneath and creates extra airflow on top of the transmission which blows into the shifter and t-case shifter openings in the floor. You can always pull the console and lay some insulation down over that area to keep the heat out.
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Old 10-07-2009, 06:30 AM   #6
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That is what I was thinking with the gears and shaft spinning.. Just thought with them dipping in 90 weight gear oil they wouldn't be that loud.. Maybe in need of a tranny oil change..

thanks
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Old 10-07-2009, 06:52 AM   #7
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Yeah, my interior shifter boot was missing ... I guess my wrangler got a little hungry or something haha. The transmission noise etc sounds alot better with my new boot in ther, had to custom make one to fit
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Old 11-29-2010, 05:05 PM   #8
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Ya I have a 3 in body lift (installed by previous owner to clear tires) and I had to remove my boot because it would pop the stick out of 2, 4, and r and I have a soft top so i can barely hear anything around 45
I have noticed my transmission seems louder than normal. Like when I have the clutch in coming to a stop with the stick in 1st or 2nd it makes a grinding noise.
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Old 11-29-2010, 05:14 PM   #9
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Quote:
Originally Posted by Exl2392
I have a lifted 04 wrangler , 3" body and 4" suspension on 35" tires. Whenever my jeep is idling there is a noise that comes from the transmission area, and also whenever the clutch is ppressed it kinda gets a little louder. Spoke with the local off road shop and he says that jeeps just have loud transmissions when they are lifted and nothing sounds unordinary. Also, mechanic said it checked out and is in great shape for an 04 with 40k miles. I was just wondering If anyone else has thos issue, and if when they shift into 1 or 2 gear it kinda clunks/grinding noise, like it's missing the gear or maybe my shifter needs to be extended??

Also, whenever i drive the jeep and the engine/transmission warms up there is an EXCESSIVE amount of hot air being blown into the cabin near the driver and passenger feet, is there a way to stop this air from coming in??

Thanks guys n gals
Sounds about normal
Haha

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