squeeling noise!!!

bloke279 · 07-24-2006, 10:38 PM

hey all, i havent been on in a very long time due to new marriage and work... and all that crazy stuff!

anyways, i have a problem...

on my way home from work today, on a two lane highway, i got behind a very slow truck for a distance of a few miles. he was going 30 mph. being pretty hot outside, i had the a/c on, trying to cool off form a days work. When i got the slightest bit of a chance to pass, i took it. as i stepped into the accelerator, the 4.0 gave a mild chirp. i thought it was the belt slipping, that what it sounded like anyways. i never step on the gas hard when the a/c is on, just a pet peeve. when i got back into town, i turned the a/c off, and rolled the windows down. curious about the noise, i stepped in it again, accept this time i was at a complete stop. this time the squeel continued until i let commpletely off the throttle. any guesses?

i checked the belt, it seemed to be fine, not loose either. My engine compartment is very clean, a virgin to mud. so no uneccessary wear and tear.

please help. I have a warrenty too, but i want to go in with an idea...

thanks, bryant

adp5025 · 07-24-2006, 11:10 PM

cracked belt?

drew76924 · 07-24-2006, 11:22 PM

i sometimes have that too like it'l squeek for liek half a second and liek i'll lose power for liek half a sec at higher rpms but then after it will b fine >?

**Rocky529** · 07-24-2006, 11:38 PM

Quote:

Originally Posted by bloke279

hey all, i havent been on in a very long time due to new marriage and work... and all that crazy stuff!

anyways, i have a problem...

on my way home from work today, on a two lane highway, i got behind a very slow truck for a distance of a few miles. he was going 30 mph. being pretty hot outside, i had the a/c on, trying to cool off form a days work. When i got the slightest bit of a chance to pass, i took it. as i stepped into the accelerator, the 4.0 gave a mild chirp. i thought it was the belt slipping, that what it sounded like anyways. i never step on the gas hard when the a/c is on, just a pet peeve. when i got back into town, i turned the a/c off, and rolled the windows down. curious about the noise, i stepped in it again, accept this time i was at a complete stop. this time the squeel continued until i let commpletely off the throttle. any guesses?

i checked the belt, it seemed to be fine, not loose either. My engine compartment is very clean, a virgin to mud. so no uneccessary wear and tear.

please help. I have a warrenty too, but i want to go in with an idea...

thanks, bryant

What year is your TJ? If it does not have an auto-tensioner, make sure it is torqued down properly (run a search to find out how).

If it's not the torque, your idler pulley may be at blame.

bloke279 · 07-24-2006, 11:40 PM

not a crackd belt, ive inspected it thourghly. When i get a solid kick down, and it jumps to about 3500 rpm, it does it.

I just took my buddy for a ride, and i couldnt duplicate the noise at all. Thinking back now, ive come to the conclusion that the squeel only happens when the fan clutch is on. When i was on my way home it was running, and when it did it again, i had the jeep standing still with the a/c on for the wife for about five minutes, when i left the house, it did it again. again, the fan clutch was running.

its parked for the night, if it continues, ive got warrenty, it only has 29,000 miles on it!

**Poor Boy** · 07-25-2006, 03:09 AM

just tighten the belt an RCH and see if it happens again on a long drive.

Rule303 · 07-25-2006, 08:24 AM

Its the belt.

bloke279 · 07-26-2006, 01:03 AM

that was my suspisions. either that or a pulley. i will give it a try! it probaby doesnt help that i just amor all'ed the engine huh? haha...

garrett · 07-26-2006, 02:41 AM

its not the belt its the a/c pully bearings its happened to me in my old 96 cherokee 4.0 when i would turn the a/c on from a dead stop or when i just start it and drive i had to replace my a/c pully bearings

**Rocky529** · 07-26-2006, 02:43 AM

Quote:

Originally Posted by bloke279

that was my suspisions. either that or a pulley. i will give it a try! it probaby doesnt help that i just amor all'ed the engine huh? haha...

I would use a product that is made for the engine (unless you did, and are just using ArmorAll as a way to describe it).

Rule303 · 07-26-2006, 10:23 AM

Could be the armor all! Take the belt off and you'll know real quickly if its a pulley.

bloke279 · 07-28-2006, 07:24 PM

i didnt actully use armor all, it was just a gerneral term...
haha

its not doing it anymore, i will have to wait until it gets worse i guess so i can properlly diagnose the problem... oh well...

i think its the bearings...

Rule303 · 07-29-2006, 10:50 AM

Hard to diagnose over the net. A squealing belt sounds different from a bearing to me. Glad it cleared up for ya.

dtrick · 07-29-2006, 10:58 AM

i have the same sound when my ac is on as well, mainly when i take off from a complete stop and it stops once i am at about 15mph

07-24-2006, 11:10 PM	#2
adp5025 Registered User Join Date: Sep 2005 Posts: 360 Profile Gallery Classifieds My Jeeps	cracked belt? __________________ 1999 Jeep Wrangler Sport 4.0L 5 Speed (Dana 30/186MM Front Axle,3.73 Axle Ratio,Dana M35/194MM Rear Axle) 2004 Jeep Grand Cherokee OVERLAND 4.7H.O. V8 2007 Toyota Tacoma Double Cab 4.0L V6 TRD offroad [COLOR="Blue"][B][FONT="Franklin Gothic Medium"]Penn State University - Engineering[/FONT][/B][/COLOR]

07-24-2006, 11:40 PM	#5
bloke279 Registered User Join Date: Oct 2005 Posts: 424 Profile Gallery Classifieds My Jeeps	not a crackd belt, ive inspected it thourghly. When i get a solid kick down, and it jumps to about 3500 rpm, it does it. I just took my buddy for a ride, and i couldnt duplicate the noise at all. Thinking back now, ive come to the conclusion that the squeel only happens when the fan clutch is on. When i was on my way home it was running, and when it did it again, i had the jeep standing still with the a/c on for the wife for about five minutes, when i left the house, it did it again. again, the fan clutch was running. its parked for the night, if it continues, ive got warrenty, it only has 29,000 miles on it! __________________ Full Traction 3" altitude adjustment Warn front/rear bumper Hesco TBS Magnaflow CAT Back Exhaust 285/75r/16 BFG A/T on rubi wheels Clear marker lenses JKS discos [COLOR=Silver][B]Silver jeep club member #76[/B][/color]

07-26-2006, 01:03 AM	#8
bloke279 Registered User Join Date: Oct 2005 Posts: 424 Profile Gallery Classifieds My Jeeps	that was my suspisions. either that or a pulley. i will give it a try! it probaby doesnt help that i just amor all'ed the engine huh? haha... __________________ Full Traction 3" altitude adjustment Warn front/rear bumper Hesco TBS Magnaflow CAT Back Exhaust 285/75r/16 BFG A/T on rubi wheels Clear marker lenses JKS discos [COLOR=Silver][B]Silver jeep club member #76[/B][/color]

07-28-2006, 07:24 PM	#12
bloke279 Registered User Join Date: Oct 2005 Posts: 424 Profile Gallery Classifieds My Jeeps	i didnt actully use armor all, it was just a gerneral term... haha its not doing it anymore, i will have to wait until it gets worse i guess so i can properlly diagnose the problem... oh well... i think its the bearings... __________________ Full Traction 3" altitude adjustment Warn front/rear bumper Hesco TBS Magnaflow CAT Back Exhaust 285/75r/16 BFG A/T on rubi wheels Clear marker lenses JKS discos [COLOR=Silver][B]Silver jeep club member #76[/B][/color]

07-29-2006, 10:58 AM	#14
dtrick Registered User Join Date: Jun 2005 Location: St louis Posts: 31 Profile Gallery Classifieds My Jeeps	i have the same sound when my ac is on as well, mainly when i take off from a complete stop and it stops once i am at about 15mph __________________ 98 wrangler sahara white 2 inch body lift, 4 inch suspension lift teraflex 35x12.5 bfg all terrain

07-26-2006, 02:41 AM	#9
garrett Registered User Join Date: Jul 2006 Location: Texas Posts: 33 Profile Gallery Classifieds My Jeeps	its not the belt its the a/c pully bearings its happened to me in my old 96 cherokee 4.0 when i would turn the a/c on from a dead stop or when i just start it and drive i had to replace my a/c pully bearings