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Old 05-15-2014, 04:40 PM   #1
Edahall
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Hood raises while driving

The hood on both of my Suburbans raise slightly (in the front part of the hood) when driven down the highway. It's noticeable because the front part of the hood becomes higher than the fender gap. Anyone else notice this? Is this normal or is there a fix?
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Old 05-15-2014, 05:30 PM   #2
Jonboy
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Re: Hood raises while driving

See if you can pull the latch down and raise the side bumpers.
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Old 05-15-2014, 09:34 PM   #3
Edahall
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Re: Hood raises while driving

Quote:
Originally Posted by Jonboy View Post
See if you can pull the latch down and raise the side bumpers.
I've already adjusted the latch down as far as possible.
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1990 ¾ ton 4x4 Chevy Suburban
-Cummins Diesel - 12 valve - factory rebuilt
-6 speed bullet proof manual transmission - NV5600
-Gear Vendors Overdrive - HX35 Holset Turbo
-NP205 iron transfer case
-3.73 gears -2" Lift
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Old 05-15-2014, 10:49 PM   #4
Edahall
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Re: Hood raises while driving

Anyone else notice this issue or is it just my vehicles?
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1990 ¾ ton 4x4 Chevy Suburban
-Cummins Diesel - 12 valve - factory rebuilt
-6 speed bullet proof manual transmission - NV5600
-Gear Vendors Overdrive - HX35 Holset Turbo
-NP205 iron transfer case
-3.73 gears -2" Lift
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Old 05-16-2014, 09:04 AM   #5
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Re: Hood raises while driving

Its a normal thing for the two squares I've had. I could be wrong but I think its more common on 81-up. The hoods were weaker in the front center and allow them the outer edges to rise at highway speeds and flap like bird, lol. Both my trucks eventually cracked the metal on the very center of hood from the stress of flapping. In my opinion the front hood structure wasn't built heavy enough

So to answer your question.......Its not just you, lol
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Old 05-16-2014, 12:35 PM   #6
84chevyguyid
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Re: Hood raises while driving

My 87 does that too, sometimes it scares me cause i think my hood is unlatched.
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Old 05-16-2014, 04:09 PM   #7
Rich84
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Re: Hood raises while driving

My 70 hood wiggled like a bowl of jello.. but 84 doesn't.
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Old 05-16-2014, 04:33 PM   #8
willett
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Re: Hood raises while driving

Considered the high speed warning. Mine starts going ape above about 140km/h
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Old 05-16-2014, 05:00 PM   #9
MalibuSSwagon
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Re: Hood raises while driving

thats weird, never noticed the hood flapping on my 86. And I'm not one to miss details like a loose hood!
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Old 05-16-2014, 05:28 PM   #10
cam.man67
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Re: Hood raises while driving

I thought that was a feature on this era truck.
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Old 05-16-2014, 08:02 PM   #11
Greenlee
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Re: Hood raises while driving

Mine moves a little also. I've owned several of these trucks and this is the first one I've noticed it. I assumed I had something adjusted wrong when I put the hood on after paint. I replaces all of the little rubber stops and had the latch off. To tell the truth I don't remember any adjustment in the latch, but the rubber stops are adjustable.
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Old 05-17-2014, 04:41 AM   #12
Burmanater
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Re: Hood raises while driving

I've got mine adjusted to a spot that's just right and the hood sits even and it still comes up. Gotta remember we got the aerodynamics of a brick so your front end bluntly forces a lot of air around. A lot of it comes in between the hood and grill panel and the airflow raises the hood.

A buddy of mine made a rubber strip that was like a t and sandwiched it in between the hood and grille every time he closed the hood. You could hardly tell it was there but man did it make a difference with hood flop. Check all your gaps and stuff too.
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Old 05-17-2014, 05:52 AM   #13
ont_guy_38
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Re: Hood raises while driving

I would be checking for cracks around the latch on the hood just to make sure. Is it a aftermarket hood by any chance maybe? If adjusted properly, it shouldn't do this, if you have adjusted the latch properly you also have to have tension on the bumpers as stated earlier or it will just rock in the middle.
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