Hood won't pop up. - The 1947 - Present Chevrolet & GMC Truck Message Board Network

red71c10 · 06-19-2010, 07:21 PM

As long as I've owned this truck, I've had to release the latch with one hand and help the hood up with the other. The hood springs pull it up once I get it started and they hold it up fine. I'm wondering why it won't pop up when I release the latch. Any thoughts?

JimKshortstep4x4 · 06-19-2010, 08:14 PM

Make sure the hood hinges are lubed and adjust the stops so that there is some pressure on the hood. Also, make sure the alignment pin is not binding.

Jim

Sinister · 06-19-2010, 08:38 PM

Weak springs. I replaced my hood hinges and springs and there was a big difference. Hood pops right up now.

red71cheyenne · 06-19-2010, 09:09 PM

You could also try "tensioning" the springs by loosening the hinge bolts and pushing up the hood and re-tighten the bolts. Adds a little extra lift to the spring action.

cdowns · 06-20-2010, 02:28 AM

cleaning and lubrication makes moving parts work better

red71c10 · 06-20-2010, 02:45 AM

Lubricating everything was the first thing I did. If I help the hood up to the first stop (where it's not fully latched, but not fully released) and then pull up on the latch again, it goes up the rest of the way with no trouble. It's just getting it from fully latched to "popped up" that that's the problem. I will try and adjust the stops and see if that helps. The alignment pin doesn't seem to be binding.

LONGHAIR · 06-20-2010, 08:48 AM

Quote:

Originally Posted by red71cheyenne

You could also try "tensioning" the springs by loosening the hinge bolts and pushing up the hood and re-tighten the bolts. Adds a little extra lift to the spring action.

That is completely wrong. All it will do is effect the height of the back of the hood when it is closed. It does nothing to the springs at all. The spring is contained with-in the hinge itself and is a completely independent unit.
The hood springs have nothing to do with the initial opening of the hood, they just hold it open.

cdowns · 06-20-2010, 09:07 AM

i'd also try to loosen the latch and striker on both the core support and hood to see if there is a slight misalignment causing it to bind that little bit//could b off by 1/8inch or so and cause that slight hangup

**LockDoc** · 06-20-2010, 11:28 AM

Quote:

Originally Posted by cdowns

i'd also try to loosen the latch and striker on both the core support and hood to see if there is a slight misalignment causing it to bind that little bit//could b off by 1/8inch or so and cause that slight hangup

with cdowns on this. I think the locator pin on the hood is hanging up.

red71cheyenne · 06-20-2010, 07:00 PM

Quote:

Originally Posted by LONGHAIR

That is completely wrong. All it will do is effect the height of the back of the hood when it is closed. It does nothing to the springs at all. The spring is contained with-in the hinge itself and is a completely independent unit.
The hood springs have nothing to do with the initial opening of the hood, they just hold it open.

As the wise man once said: "Opinions are like a$$holes. Everyone has one and they all stink."
I had the same issue with the 71 and got that advice on this board. Tried it, and guess what? It worked.

**truckdude239** · 06-20-2010, 08:16 PM

umm its normal mine does it too

LONGHAIR · 06-20-2010, 08:20 PM

Facts are not opinions.
Someone told you wrong and maybe that adjustment fixed the bind of the latch pin by coinsidence.
Adjusting the hinge mounting points has absolutely nothing to do with "Tensioning" the springs...which cannot be done anyway.
If the springs are worn, they need to be replaced, but all they do is draw the hinges together. This holds the hood up, it does not "pop" it from the latched position. It they did the hood would raise by itself when you unlatched it.

Sinister · 06-20-2010, 09:00 PM

When I unlatch my hood it raises by itself. New springs and hinges.

Rob H. · 06-20-2010, 11:08 PM

I've got the same problem with my 72. I do need to use more lubrication, that's been the least of my worries with it right now. But it is aggravating, I just recently replaced the hood with another one because the inner brace the hoodlatch mounts too was rusted out.
The problem is still there so still need to figure it out.

red71c10 · 06-20-2010, 11:53 PM

I adjusted the pin and now the hood pops enough to get it open with no trouble. The hood does seem to vibrate or "oilcan" more when I'm idling than it did before, but that's another issue. Thanks guys!!!!

DonnyZ · 09-14-2021, 10:14 AM

This is an old thread... but my 69 C10 had the same issue. My Fix was replacing (installing) the side hood bumpers I got from LMC. I bought my C10 3 months ago and the hood issue has been driving me nuts - LMC -30-1829
HOOD BUMPER SET-SIDE
CHEVY GMC 67-72
$4.95

06-19-2010, 07:21 PM	#1
red71c10 The Red Menace Join Date: Feb 2009 Location: Roseburg, OR Posts: 577	Hood won't pop up. As long as I've owned this truck, I've had to release the latch with one hand and help the hood up with the other. The hood springs pull it up once I get it started and they hold it up fine. I'm wondering why it won't pop up when I release the latch. Any thoughts? __________________ 1971 Custom 10 - 350/350TH - Pwr steering, gauges, Chrome front bumper, Chrome hubcaps, Door edge guards, HD rear springs (current) 1968 C-20 Custom Camper - 350/350TH (orig 327), Pwr steering & brakes, gauges w/tach (former) 1968 C-20 - 307/3sp column (Dad's when I was a kid) "Driving is like coloring. Things get messy if you can't stay inside the lines."

06-19-2010, 08:14 PM	#2
JimKshortstep4x4 Senior Member Join Date: Jul 2001 Location: Muskegon,MI,USA Posts: 6,026	Re: Hood won't pop up. Make sure the hood hinges are lubed and adjust the stops so that there is some pressure on the hood. Also, make sure the alignment pin is not binding. Jim __________________ 1971 Shortbox step side 4x4, 350 sbc, 3:07 rear end 1965 Impala SS 400 sbc, Muncie rock crusher 1966 Impala SS 396 bbc, TH 400 1969 El Camino, 350 sbc, TH 350 1971 Snowplow built on a Blazer frame 1972 GMC Short bed, stepside, TH 400, 427 BBC

06-19-2010, 08:38 PM	#3
Sinister Between Trucks... Join Date: Mar 2002 Location: Los Angeles, CA. Posts: 3,830	Re: Hood won't pop up. Weak springs. I replaced my hood hinges and springs and there was a big difference. Hood pops right up now. __________________ Beat it to fit, Paint it to match...

06-19-2010, 09:09 PM	#4
red71cheyenne Back in the sticks Join Date: Jan 2001 Location: Fordland, MO Posts: 3,188	Re: Hood won't pop up. You could also try "tensioning" the springs by loosening the hinge bolts and pushing up the hood and re-tighten the bolts. Adds a little extra lift to the spring action. __________________ 1971 Cheyenne C-10 w/700R4 and Tuned Port Injection 1969 K5 Blazer w/Tuned Port 2010 2SS/RS Flaming Orange Camaro 2011 K1500 Suburban 2014 K1500 Pickup 2008 Nissan Altima? The wifes' hoopty

06-20-2010, 02:28 AM	#5
cdowns Senior Member Join Date: Jan 2003 Location: daytonabeach Posts: 22,956	Re: Hood won't pop up. cleaning and lubrication makes moving parts work better __________________ 71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY

06-20-2010, 02:45 AM	#6
red71c10 The Red Menace Join Date: Feb 2009 Location: Roseburg, OR Posts: 577	Re: Hood won't pop up. Lubricating everything was the first thing I did. If I help the hood up to the first stop (where it's not fully latched, but not fully released) and then pull up on the latch again, it goes up the rest of the way with no trouble. It's just getting it from fully latched to "popped up" that that's the problem. I will try and adjust the stops and see if that helps. The alignment pin doesn't seem to be binding. __________________ 1971 Custom 10 - 350/350TH - Pwr steering, gauges, Chrome front bumper, Chrome hubcaps, Door edge guards, HD rear springs (current) 1968 C-20 Custom Camper - 350/350TH (orig 327), Pwr steering & brakes, gauges w/tach (former) 1968 C-20 - 307/3sp column (Dad's when I was a kid) "Driving is like coloring. Things get messy if you can't stay inside the lines."

06-20-2010, 09:07 AM	#8
cdowns Senior Member Join Date: Jan 2003 Location: daytonabeach Posts: 22,956	Re: Hood won't pop up. i'd also try to loosen the latch and striker on both the core support and hood to see if there is a slight misalignment causing it to bind that little bit//could b off by 1/8inch or so and cause that slight hangup __________________ 71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY

06-20-2010, 08:16 PM	#11
truckdude239 Senior Member Join Date: Sep 2005 Location: Lewisville, Nc Posts: 10,236	Re: Hood won't pop up. umm its normal mine does it too __________________ David fuller Ase Certified Mechanic Click here to help support our board!! 1971 Chevy c-10 under going a 4.8l LSx swap Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=421305 2007 Honda Accord my daily 145kmiles 2002 Honda Accord 4 door With 330k(sisters car) 2005 toyota Avalon 228k( brothers car) 2002 Sububran 5.3 245k 2000 Tahoe 5.3l 378 General manager for Marco's Carwash & lube

06-20-2010, 09:00 PM	#13
Sinister Between Trucks... Join Date: Mar 2002 Location: Los Angeles, CA. Posts: 3,830	Re: Hood won't pop up. When I unlatch my hood it raises by itself. New springs and hinges. __________________ Beat it to fit, Paint it to match...

06-20-2010, 11:08 PM	#14
Rob H. Registered User Join Date: Nov 2008 Location: Petersville KY Posts: 673	Re: Hood won't pop up. I've got the same problem with my 72. I do need to use more lubrication, that's been the least of my worries with it right now. But it is aggravating, I just recently replaced the hood with another one because the inner brace the hoodlatch mounts too was rusted out. The problem is still there so still need to figure it out. __________________ Rob 72 C/10 (under reconstruction)(destruction ? LOL) 48 Willys CJ2A 1952 Super "A" Farmall (Grandfather's) Last edited by Rob H.; 06-20-2010 at 11:09 PM.

06-20-2010, 11:53 PM	#15
red71c10 The Red Menace Join Date: Feb 2009 Location: Roseburg, OR Posts: 577	Re: Hood won't pop up. I adjusted the pin and now the hood pops enough to get it open with no trouble. The hood does seem to vibrate or "oilcan" more when I'm idling than it did before, but that's another issue. Thanks guys!!!! __________________ 1971 Custom 10 - 350/350TH - Pwr steering, gauges, Chrome front bumper, Chrome hubcaps, Door edge guards, HD rear springs (current) 1968 C-20 Custom Camper - 350/350TH (orig 327), Pwr steering & brakes, gauges w/tach (former) 1968 C-20 - 307/3sp column (Dad's when I was a kid) "Driving is like coloring. Things get messy if you can't stay inside the lines."

09-14-2021, 10:14 AM	#16
DonnyZ Registered User Join Date: Jul 2021 Location: LONGMONT Posts: 3	Re: Hood won't pop up. This is an old thread... but my 69 C10 had the same issue. My Fix was replacing (installing) the side hood bumpers I got from LMC. I bought my C10 3 months ago and the hood issue has been driving me nuts - LMC -30-1829 HOOD BUMPER SET-SIDE CHEVY GMC 67-72 $4.95



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