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01-17-2011, 01:02 AM
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#1 |
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Registered User
 Join Date: Dec 2010
Location: Little Rock, AR
Posts: 61
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noises while driving
I know this is the worst way to diagnose these kinds of things... but I figured I'd throw it out there.
I have a whirring "wow-wow-wow" noise that comes at driving at highway speeds. Its not consistant with engine RPM. And it changes depending on the gear (I THINK i have a TH350). Also, at idle, it sounds like something is shaking and hitting the trans tunnel. Maybe unbalanced driveshaft? In the next 2 weeks I will be completely rebuilding the suspension. Mild drop, all new bushings, alignment, possibly new tires, bearings, trying to make sure all moving parts are up to snuff seeing as how this is my daily for now. Thanks for the input. -david |
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01-17-2011, 01:20 AM
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#2 |
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motor exploder
Join Date: Mar 2009
Location: Pittsburgh, PA
Posts: 2,346
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Re: noises while driving
If it's vibrating and banging that bad, it may be bent, not just out of balance. but if it's doing it at idle (with the driveshaft not turning) it's probably something in your transmission. I'm just up the road from you in Sherwood, if you need some help, shoot me a PM. I'm off work until Tuesday.
__________________
Adam 1969 Chevy CST/10 stepside, DART Big M/TREMEC Magnum Extreme/3.73's w/Detroit Truetrac 1965 Chevy Bel Air Wagon (daily driver), 327/TH350,10 bolt w/3.08's 1961 Chevy Bel Air Sport Coupe, ZZ454/M21/9" rear w/3.50's & Detroit Truetrac 2005 GMC 1500 ccsb 2wd, 6.0L/4L65e/3.73 G80 2006 GMC 2500HD ccsb 4x4, DMax LBZ/Allison 6spd/4.56's w/Detroit TrueTrac   Use the SEARCH function on this forum - it is your friend!! Last edited by BossHogg69; 01-17-2011 at 01:21 AM. |
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01-17-2011, 01:27 AM
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#3 |
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Registered User
Join Date: Dec 2010
Location: Little Rock, AR
Posts: 61
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Re: noises while driving
Sweet... and just now, as I was under it, (still inspecting, seeing if I see any thing new/noticeable) I have a square pan tranny, which I think means I have a 700r4...
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01-17-2011, 02:18 AM
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#4 |
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Registered User
Join Date: Dec 2010
Location: Little Rock, AR
Posts: 61
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Re: noises while driving
AAAAAnd I dont think the crossmember was moved back when it was swapped... could be the tranny thumping the tunnel? Anyone?
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01-17-2011, 08:03 AM
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#5 |
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Registered User
Join Date: Feb 2006
Location: Smyrna, Ga
Posts: 1,647
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Re: noises while driving
Pics??
How close is the tranny to the crossmember? the tranny isnt going to move hardly at all while driving....if it bolted down properly. |
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01-17-2011, 12:08 PM
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#6 |
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Registered User
Join Date: Dec 2010
Location: Little Rock, AR
Posts: 61
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Re: noises while driving
I'll see if I can get some pics today. Its rough not knowing the history. What's been swapped, when, how, etc...
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