C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Underhood pressure / shaking hood.

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Old Apr 16, 2004 | 05:42 PM
  #1  
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From: San Diego , CA Double Yellow DirtBags 1985..Z51..6-speed
Default Underhood pressure / shaking hood.

This seems to be happening on the highway, especially on windy days... I can see the hood literally bouncing ~1/4". Is this because of underhood pressure, or some other cause, like bad hood hinges or latches? :auto:
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Old Apr 16, 2004 | 05:48 PM
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Default Re: Underhood pressure / shaking hood. (CentralCoaster)

i'm pretty sure it's the frame flexing, and the hood not being damped well against the flex. my car did this a ton, but 3/4 of it went away when i installed the R-D camber brace.

-michael
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Old Apr 16, 2004 | 05:51 PM
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Default Re: Underhood pressure / shaking hood. (CentralCoaster)

I had this same problem. When on the highway, a corvette is at it's best. The desire to literally fly is overwelming..... OK,OK. Really, I did have the same problem. My hood latch, the one with the point and spring on the hood itself, came loose. The nut under the plate, you have to remove it to see, broke lose and allowed the "pin" to move. There was a weld point that broke. Bought some off of ebay, replaced and :thumbs: all is well.


[Modified by ductape, 10:52 PM 4/16/2004]
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Old Apr 16, 2004 | 06:03 PM
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Default Re: Underhood pressure / shaking hood. (ductape)

:iagree: same here but it just unscrewed rather than broke...grab the hood at the latch point and see if you can lift it, if theres any slack n the latching mechanisum.
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Old Apr 16, 2004 | 10:22 PM
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Default Re: Underhood pressure / shaking hood. (CentralCoaster)

my car did this a ton, but 3/4 of it went away when i installed the R-D camber brace.
Kev, if the latch fix doesn't do the trick, you can borrow my R&D camber brace. It's just sitting in a corner while my motor gets back together and in. At least you could isolate by process of elimination.
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