Start up squeal... can't figure it out - Pirate4x4.Com : 4x4 and Off-Road Forum

SDJeeper99 · 10-30-2006, 04:40 PM

I've got an 89 Toyota 3.0 six cylinder. Everytime I start it when it's cold, it squeals. I've changed belts, tightened belts, used belt dressing. It still squeals. I can rev it up, and it will quit, then it wont do it until I shut it off and then start it again. Any ideas on what to do? It's starting to aggrivate me.

Murfman · 10-30-2006, 05:28 PM

does it only do it when its cold or can it be warm and you shut it off and start back up it squeals? sounds like it could be a bearing, if its not the belts being too tight.

red90runner · 10-30-2006, 05:40 PM

I have a similar problem on my 1999 4runner with the 3.4L. Haven't checked it out yet, but my guess it was a belt or something. I am interested to see what ur problem is if its not the belt.

BlazerGuy 90 · 10-30-2006, 06:12 PM

If its not a belt, then it might possibly be a bearing in the water pump or alternator.

SDJeeper99 · 10-30-2006, 06:34 PM

Quote:

Originally Posted by Murfman

does it only do it when its cold or can it be warm and you shut it off and start back up it squeals? sounds like it could be a bearing, if its not the belts being too tight.

It very seldomly squeals a bit when it's warm. I just had a thought though. My AC compressor is siezed.... wonder why I didnt think about that earlier.

stannuri · 11-01-2006, 09:59 AM

Check the tensioner bearing.

Adam3000 · 11-01-2006, 10:32 AM

A belt squeal is almost unmistakeable. IS there a tensioner bearing in the ac compressor ? You say your ac compressor is SEIZED. Does the pulley spin ? If you could get someone to start it for you then you could stand infront , mark with a white marker , and see if it doesn't spin for the "start up" , which would be why it's squealing. Also if that is the case. I think the intervals you're supposed to change your belts at are so short that you would be okay with that squeal for a couple extra weeks if you can't afford that AC compressor. You're not going to use that Ac compressor this winter so that could wait. Can you get the Compressor REPAIRED ? Also make sure you have the right TYPE of belt for the pulleys you have. You know..... VBelt, V RIBBED ! belt .............

yotaboyz · 11-01-2006, 01:02 PM

A buddy of mine has a cherokee that does the same thing. We replaced belt, alternator, and pulleys. Still haven't figured it out yet usually just rev it up a couple times and it quits. I guess we will just deal with it.

Adam3000 · 11-02-2006, 06:04 AM

Does YOUR friend have an ac compressor ?

yotaboyz · 11-02-2006, 08:41 AM

no!

4in100 · 11-02-2006, 08:57 AM

check the tensioners and pulley bolts. I had a squeal that turned out to be the harmonic balancer wobbling because the crank bolt head broke off....grrr

NetBSD · 11-02-2006, 10:21 AM

i have something simmilar in my 1990 dodge spirit, cold starts it screams like a lil pig, when i turn on the heater at idle it screams, mine is my alt bearings i think, id take the bulley off the alt and turn it by hand, listen for bad bearings

Adam3000 · 11-02-2006, 10:35 AM

Quote:

Originally Posted by yotaboyz

no!

Oh I see.

Hillbilly_jeeper · 11-02-2006, 06:08 PM

I dont know how it compares, but our snow cats at work, when the fan clutch starts to go, sometimes they will squeal real bad on cold start up, sounds just like a belt squeal. never heard a car fan clutch do it, but i guess if a larger fan clutch can, maybe a car one could too?

cheaprides · 11-03-2006, 05:42 AM

take the belt off and start the truck cold. see if you can get it to make any kinda noise. no noise so turn each pully to see if anything feels "scratchy" bearings are going outa something this is the easyest way to tell

Adam3000 · 11-03-2006, 06:42 AM

Quote:

Originally Posted by Hillbilly_jeeper

I dont know how it compares, but our snow cats at work, when the fan clutch starts to go, sometimes they will squeal real bad on cold start up, sounds just like a belt squeal. never heard a car fan clutch do it, but i guess if a larger fan clutch can, maybe a car one could too?

I didn't know that...............

10-30-2006, 04:40 PM	#1 (permalink)
SDJeeper99 Registered User Join Date: Dec 2005 Member # 62796 Location: South Dakota Posts: 220	Start up squeal... can't figure it out I've got an 89 Toyota 3.0 six cylinder. Everytime I start it when it's cold, it squeals. I've changed belts, tightened belts, used belt dressing. It still squeals. I can rev it up, and it will quit, then it wont do it until I shut it off and then start it again. Any ideas on what to do? It's starting to aggrivate me.

10-30-2006, 05:28 PM	#2 (permalink)
Murfman Registered User Join Date: May 2002 Member # 11973 Location: Colorado Springs, Co Posts: 573	does it only do it when its cold or can it be warm and you shut it off and start back up it squeals? sounds like it could be a bearing, if its not the belts being too tight. __________________ Only in a Jeep

10-30-2006, 05:40 PM	#3 (permalink)
red90runner Gives Zero Join Date: Sep 2004 Member # 35527 Location: Campbell, CA Posts: 1,491	I have a similar problem on my 1999 4runner with the 3.4L. Haven't checked it out yet, but my guess it was a belt or something. I am interested to see what ur problem is if its not the belt. __________________ -Pat Polygoats Offroad Club

11-01-2006, 09:59 AM	#6 (permalink)
stannuri Registered User Join Date: Jan 2004 Member # 25807 Location: Rio de Janeiro - Brazil Posts: 37	Check the tensioner bearing. __________________ 00 TJ 4.0 Auto 4 Speed Atlas ProRock 60s 5,38 ARB 46" tires 104" WB

11-02-2006, 06:04 AM	#9 (permalink)
Adam3000 Registered User Join Date: Apr 2006 Member # 71580 Posts: 172	Does YOUR friend have an ac compressor ? Last edited by Adam3000; 11-02-2006 at 06:05 AM.

10-30-2006, 06:12 PM	#4 (permalink)
BlazerGuy 90 Registered User Join Date: Aug 2005 Member # 51594 Posts: 27	If its not a belt, then it might possibly be a bearing in the water pump or alternator.

11-01-2006, 10:32 AM	#7 (permalink)
Adam3000 Registered User Join Date: Apr 2006 Member # 71580 Posts: 172	A belt squeal is almost unmistakeable. IS there a tensioner bearing in the ac compressor ? You say your ac compressor is SEIZED. Does the pulley spin ? If you could get someone to start it for you then you could stand infront , mark with a white marker , and see if it doesn't spin for the "start up" , which would be why it's squealing. Also if that is the case. I think the intervals you're supposed to change your belts at are so short that you would be okay with that squeal for a couple extra weeks if you can't afford that AC compressor. You're not going to use that Ac compressor this winter so that could wait. Can you get the Compressor REPAIRED ? Also make sure you have the right TYPE of belt for the pulleys you have. You know..... VBelt, V RIBBED ! belt .............

11-01-2006, 01:02 PM	#8 (permalink)
yotaboyz Registered User Join Date: Sep 2004 Member # 35837 Location: Columbia, TN Posts: 208	A buddy of mine has a cherokee that does the same thing. We replaced belt, alternator, and pulleys. Still haven't figured it out yet usually just rev it up a couple times and it quits. I guess we will just deal with it.

11-02-2006, 08:41 AM	#10 (permalink)
yotaboyz Registered User Join Date: Sep 2004 Member # 35837 Location: Columbia, TN Posts: 208	no!

11-02-2006, 08:57 AM	#11 (permalink)
4in100 Rock God Join Date: Aug 2005 Member # 51267 Location: Buford, GA Posts: 1,728	check the tensioners and pulley bolts. I had a squeal that turned out to be the harmonic balancer wobbling because the crank bolt head broke off....grrr

11-02-2006, 10:21 AM	#12 (permalink)
NetBSD Registered User Join Date: Jul 2005 Member # 50360 Location: Mount Carmel, PA. Posts: 1,636	i have something simmilar in my 1990 dodge spirit, cold starts it screams like a lil pig, when i turn on the heater at idle it screams, mine is my alt bearings i think, id take the bulley off the alt and turn it by hand, listen for bad bearings __________________ 89 Ranger, 2.9, 6" lift, 35" baja claws 92 Silverado, 6.2L, GM-3 Turbo at 10PSI

11-02-2006, 06:08 PM	#14 (permalink)
Hillbilly_jeeper Registered User Join Date: Jan 2005 Member # 42069 Location: Alta, Ca Posts: 98	I dont know how it compares, but our snow cats at work, when the fan clutch starts to go, sometimes they will squeal real bad on cold start up, sounds just like a belt squeal. never heard a car fan clutch do it, but i guess if a larger fan clutch can, maybe a car one could too? __________________ I tried that jeep thing....but I still don't understand it!

11-03-2006, 05:42 AM	#15 (permalink)
cheaprides Registered User Join Date: Jan 2005 Member # 40933 Location: newstanton pa Posts: 344	take the belt off and start the truck cold. see if you can get it to make any kinda noise. no noise so turn each pully to see if anything feels "scratchy" bearings are going outa something this is the easyest way to tell __________________ 84 toyota on junkyard 31s and dual cases. still building

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