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Under-dash rattle - any suggestions?

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  • stude dude
    replied
    Check the wiper linkage. As the pivots get sloppy the driver arms begin to rattle.

    Chris.

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  • Mrs K Corbin
    replied
    Yep, give it up while you can.

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  • mbstude
    replied
    Originally posted by plee4139 View Post
    As brilliant as you all are, none of you correctly identified the source of arguably the worst old-car rattle ever. Although I haven't road tested it yet, I believe I've finally found the source: The bracket near the steering wheel which supports the dash was missing.Oddly enough, I remember seeing a bolt on the car floor quite a while ago, and I kept it just for this purpose. I'll post an update as soon as I get it on the road, and if there's just one little sound, you're all forbidden to post an opinion, ever!
    You didn’t share much information towards a diagnoses, not even the model of car you own. “It appears to be coming from the heater blower” is a long ways from “I found a bolt on the floor a while ago and a brace is missing”.

    Old cars aren’t for everyone.

    Leave a comment:


  • plee4139
    replied
    As brilliant as you all are, none of you correctly identified the source of arguably the worst old-car rattle ever. Although I haven't road tested it yet, I believe I've finally found the source: The bracket near the steering wheel which supports the dash was missing.Oddly enough, I remember seeing a bolt on the car floor quite a while ago, and I kept it just for this purpose. I'll post an update as soon as I get it on the road, and if there's just one little sound, you're all forbidden to post an opinion, ever!

    Leave a comment:


  • studegary
    replied
    Originally posted by RadioRoy View Post
    Perhaps the original poster could tell us what year and model he has.
    I assume that he is referring to his Sky Hawk, but that is only an assumption and vehicle information should be in the initial post.

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  • RadioRoy
    replied
    Perhaps the original poster could tell us what year and model he has.

    Leave a comment:


  • GrumpyOne
    replied
    Bad under-the-dash windshield wiper grommets can cause a real annoying rattle that only occurs under certain conditions...

    Leave a comment:


  • 8E45E
    replied
    Originally posted by plee4139 View Post
    I think I may have found the source of the under-dash rattle which has been driving me crazy. It appears to be coming from the heater blower and removing it doesn't appear to be an owner-friendly task. Has anyone else experienced this problem and if so, how was it resolved?
    In the case of a '61 & newer Lark, if one has the RH air vent in the open position while driving at highway speeds, the fan will 'freewheel' as the squirrel-cage is directly in the path of the intake. One will hear it rotating with a resultant squeak or two as its not turning at full rpm's without the fan motor being 'on'.

    Craig

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  • Mrs K Corbin
    replied
    Trap the Midget with the hammer
    Seriously tho I would crawl under there with some duct tape and anything that appears loose just put a piece on it. see if that helps.
    First, tho do the ant-rattle device thing on the hood hinge cross bar. A little heater hose should do it.

    Leave a comment:


  • studegary
    replied
    Originally posted by Jerry Forrester View Post
    If you are talking about your Sky Hawk, make sure the anti-rattle devices are on the hood hinge cross bar. I think they are 3/8" X 2" rubber tube.
    Thanks! Just what I would post. They are usually the cause of what people describe as under dash rattles on C/K cars. It is not only important that the two of them are there, but also that they are in the correct locations. (I think that they originally were more than 2" long.)

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  • Jerry Forrester
    replied
    If you are talking about your Sky Hawk, make sure the anti-rattle devices are on the hood hinge cross bar. I think they are 3/8" X 2" rubber tube.

    Leave a comment:


  • jclary
    replied
    Not sure of exactly what car you are talking about, but I'm thinking you have some kind of Hawk,(year?). If yours is like the ones I have had, there are two heater motors. One for the main under-seat heater and one for the defroster. Which one do you think is the problem? What do you think is going on? Is the rattle only evident when the heater is operating, or just from the bumps encountered from the road in normal driving? Blower fan loose on the shaft? It could be worn bearing/bushing or the mounting vibration dampeners where it bolts to the brackets that hold it in place, or possibly some trash buildup that has caused an imbalance during operation.

    My memory is that it is not too big of a challenge to get to these blowers, but I have not had a Hawk in years and I was nowhere near as old as I am now. Check all the mounting bracket fasteners first, and go from there. Hopefully, you have your manuals so that you can get a good picture of the assembly before approaching with tools.

    Leave a comment:


  • plee4139
    started a topic Under-dash rattle - any suggestions?

    Under-dash rattle - any suggestions?

    I think I may have found the source of the under-dash rattle which has been driving me crazy. It appears to be coming from the heater blower and removing it doesn't appear to be an owner-friendly task. Has anyone else experienced this problem and if so, how was it resolved?
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