Squealing sound when car turns on!
Printed From: West Coast Fieros
Category: Technical Topics Forum
Forum Name: Technical Questions and Discussions
Forum Description: Got a technical question about your fiero? ask it here.
URL: http://www.westcoastfieros.com/forum/forum_posts.asp?TID=2586
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Topic: Squealing sound when car turns on!
Posted By: InfernoFiero
Subject: Squealing sound when car turns on!
Date Posted: 19 July 2011 at 1:26am
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Hello,
The Fiero squeals which may last just a few seconds when I turn on the car. I notice the sound comes from the back of the car... Is this a waterpump issue? |
Replies:
Posted By: Patrick
Date Posted: 19 July 2011 at 8:11am
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Sounds like a loose or worn belt. What was the final outcome with your http://www.westcoastfieros.com/forum/forum_posts.asp?TID=2557&KW - coolant issue and with your http://www.westcoastfieros.com/forum/forum_posts.asp?TID=2549&KW - leaky sunroof ?
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Posted By: Romeo
Date Posted: 19 July 2011 at 8:35am
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Patty is spot on. It is a belt due to some cause or another, and if you were leaking coolant in that area, that seems like the most probable culprit. ------------- Never shift into reverse without a back-up plan. |
Posted By: InfernoFiero
Date Posted: 20 July 2011 at 12:43am
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Hello,
I finally fixed the leaks by drilling the holes in each of the sunroof drains, but just much more clearly so no rubber was in the way. I put the comment in that post so if my page ever pops up in GOOGLE it give some sort of hope to the person viewing it. That being said, I have not been able to do the coolant burping yet, as I have been far too busy! I will do it this weekend for sure (oh wait, I'm working then too)! Anyways, I am extremely confused when you both say that the belt could be the issue. I bought the Fiero under the impression that there was NO belt. That's what the seller told me, and being skeptical I researched this online. http://tinyurl.com/3kv4sjg - This website says there is no belt or chain! |
Posted By: Patrick
Date Posted: 20 July 2011 at 12:49am
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I'm honestly beginning to suspect that you're just trying to yank our chains. You're telling us that when you look at your engine you can see NO belt on it? It's no wonder then you have overheating (and no doubt charging) issues!
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InfernoFiero wrote:Posted By: InfernoFiero
Date Posted: 20 July 2011 at 12:58am
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No, I am being completely genuine with my shock. I was
under the impression that it was gears to gears as explained in the link as opposed to having a belt! At first I was skeptical though, because a car without any belt/chain was a first for me. I didn't look to notice any belt, but I guess we have a belt then!!! AHHHHHHHH! |
Posted By: Patrick
Date Posted: 20 July 2011 at 1:01am
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No one here has made any reference to a timing belt. |
Posted By: InfernoFiero
Date Posted: 20 July 2011 at 1:08am
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I thought you guys were talking about the timing belt. My
bad. Tomorrow I'll try to find the belt you guys are talking about. I thought there was only one belt for cars and that being the timing belt . What does this belt you guys are referring to do? |
Posted By: Patrick
Date Posted: 20 July 2011 at 1:15am
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Have a look at your engine and you tell us. Seriously. Consider this a little test to see how genuine you are in your desire to work on a car. |
Posted By: Romeo
Date Posted: 20 July 2011 at 8:40am
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Aw Patty, at least throw him a bone. The belt is located on the "nose" of the crankshaft, far over to the passenger side. ------------- Never shift into reverse without a back-up plan. |
Posted By: InfernoFiero
Date Posted: 20 July 2011 at 2:44pm
| I appreciate your help guys, thanks! |
Posted By: karnak
Date Posted: 20 July 2011 at 10:39pm
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If you do find the belt then you can check it to see if it is tight but not
too tight (motor off). Espically if it is a v belt . If you over tighten it it via the alternator bracket, then the belt might not squeak but the tension you apply may either damage the belt or hurt the alternator or water pump. A water pump or alternator that is starting to fail can lead to squeaking also but would likely be more constant. Rain that comes thru the vent can make the belt squeak. I recomend a shot of belt dressing on it first (comes in an aerosol can) is a reasonable starting point If it is not a v belt and is a serpentine belt then replace it Gary |
Posted By: InfernoFiero
Date Posted: 27 July 2011 at 5:13pm
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Hello,
I ended up buying belt dressing like suggested by karnak and left the car on and sprayed it at the same spot for a few seconds. No squeaks ever since! Thank you guys for help! |
Posted By: InfernoFiero
Date Posted: 28 July 2011 at 3:46pm
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The belt is squealing again, so I will now replace the
belt. If the squealing returns, I guess I will have to replace the belt pulleys as I do see some rust on them. |
Posted By: Colby
Date Posted: 28 July 2011 at 4:35pm
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Have you adjusted the tension on the belt yet? You may want to try that first before replacing it. ------------- 88 Formula 5 speed |
Posted By: InfernoFiero
Date Posted: 28 July 2011 at 5:59pm
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I'm a little worried that I might over-tighten the tension!
Am I supposed adjust the tension to the point where there should be no more than 1/2" of deflection when pressure is applied with your thumb? |
Posted By: Colby
Date Posted: 28 July 2011 at 11:46pm
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Don't worry too much about it. I'd guess that it would take quite a bit of pressure before anything bad came from it. Just start off by making it a little bit tighter, then if it still squeaks, do a little bit more, etc. ------------- 88 Formula 5 speed |
Posted By: Romeo
Date Posted: 29 July 2011 at 9:14am
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Yes, the easiest way is as Colby says. Just snug it up, start it, listen, and tighten it little by little until you find the right tension. And the half an inch deflection is typically accurate if you want to try and go that route too. ------------- Never shift into reverse without a back-up plan. |
Posted By: InfernoFiero
Date Posted: 01 August 2011 at 6:07pm
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Alright thanks, and is the only difference for the
accessory belt for a Fiero with A/C just be a bit longer in length than the belt for a non A/C Fiero? Edit: Nevermind, they are the same length. I managed to replace the belt, and my car isn't squeaking anymore, and I feel a significant difference in power. My acceleration is much more quicker, and my rpm at start up doesn't go higher than 1.5 (usually was around 2)! |
Posted By: Romeo
Date Posted: 02 August 2011 at 9:03pm
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Hm. 1.5 is still rather high, it should be down around 1-1.2 ------------- Never shift into reverse without a back-up plan. |
Posted By: InfernoFiero
Date Posted: 22 September 2011 at 11:23pm
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So ever since replacing the sepertine belt there was no squeaking whatsoever during the dry summer. Now, with the recent rainy days, it is starting to squeak again, worse and worse. I'll try to tension it as a temporary solution if that, but any reason why the belt is so sensitive to water? |
Posted By: Patrick
Date Posted: 23 September 2011 at 1:42am
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My '84 duke is the same way. It ticks me off. By the way, it's not a serpentine belt on your '84, unless you've had an '87 or '88 duke dropped in there. It's just a V-belt.
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Posted By: Romeo
Date Posted: 23 September 2011 at 3:13pm
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Temperature affects how much grip is available. It tends to rain on colder days, and colder temperatures increase the chances of the belt slipping. Also a factor is the water itself, obviously. I'm sure you know yourself, but a wet belt has much smaller coefficient of traction available (Consider you tire's grip in the rain). And the last factor is the wear of the belt itself. As it ages, it's going to wear away the "inside" of the belt, which will effectively increase its length ever-so-slightly.
Obviously those two things create a bit of a double standard: You want it tight enough to prevent slippage during cold, damp weather. But the tighter you make it, the more drag you apply to the motor, wasting efficiency. One such solution is spring-loaded tensioners (often called automatic tensioners) which will apply more tension as the belt wears (Negating the wear on the belt) and will often push more of the belt around high-load accessories (Water pump and alternator). ------------- Never shift into reverse without a back-up plan. |
Posted By: Patrick
Date Posted: 23 September 2011 at 3:44pm
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I would love to have an auto-tensioner on my duke ( http://www.westcoastfieros.com/forum/forum_posts.asp?TID=1790&KW - like I have on my GT ), but there is nothing available (as far as I know) for an '84-'86 duke with a V-belt. Heck, even a simple idler pulley would help if it could provide additional belt wrap around the alternator pulley.
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Posted By: CFoss
Date Posted: 24 September 2011 at 8:41am
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The tensioner is a great idea. I just have to find one that fits somehow. When I go through some water I get a splash and then she slips. My splash guards are almost rotted out so that's why. It sucks cause my voltage goes down, and it causes a ripple through the whole thing: lights, ignition, etc. Chay ------------- 86 SE 3.4 |
Posted By: Patrick
Date Posted: 24 September 2011 at 2:31pm
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Looky what I found. I had forgotten about this thread. http://www.fiero.nl/forum/Forum2/HTML/112118.html - Has anyone ever designed/made an idler arm/pulley for the '84-'86 duke?
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