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Old 06-12-2012, 11:37 AM   #1
CountryGirlT
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Wink 1972 GMC Sierra Grande 2500

Hey y'all my name is Truly and I'm just a girl fixin' up my beautiful green 72 GMC which has earned the name "Love Potion #9" because everyone loves this truck so much

I will post pictures very soon!

So far I have replaced the distributor, spark plugs, and shimmed the starter which helped quite a bit.

The main problem that still hasn't been solved is that giving it gas after it's been idleing for a while makes it wanna die. "Feathering" the gas pedal seems to work well but I'd like to solve the problem. Also the truck doesn't like to idle in drive very well.

I'm excited to be on this forum and to hear whats going on with you guys!
Talk to ya later!

-Truly
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Old 06-12-2012, 11:45 AM   #2
Tinkermc
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Re: 1972 GMC Sierra Grande 2500

welcome to rhe board and congrats on having your very own 72. there great trucks
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Old 06-12-2012, 11:56 PM   #3
CharlesUFarley
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Re: 1972 GMC Sierra Grande 2500

Sounds like your carb has a bad accelerator pump. What kind of carb is it?

Oh...and welcome to the forum.
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Old 06-14-2012, 11:39 AM   #4
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Re: 1972 GMC Sierra Grande 2500

Quote:
Originally Posted by CharlesUFarley View Post
Sounds like your carb has a bad accelerator pump. What kind of carb is it?

Oh...and welcome to the forum.
Thanks! It's a 4 barrel Rochester, haven't messed with it yet, but that could definitely be it.
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Old 06-14-2012, 07:34 PM   #5
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Wink Re: 1972 GMC Sierra Grande 2500

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Old 06-15-2012, 09:23 AM   #6
Indyuke
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Re: 1972 GMC Sierra Grande 2500

Welcome from just north of you in Marysville. Looks like a nice old GMC.
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Old 06-15-2012, 03:20 PM   #7
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Re: 1972 GMC Sierra Grande 2500

Welcome from Southern California! Nice truck!
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Old 06-15-2012, 03:22 PM   #8
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Re: 1972 GMC Sierra Grande 2500

Also check the choke. Make sure it's not closing on you. Also check for vacuum leaks with Starting fluid around the base of carb and vacuum fittings.
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Old 06-15-2012, 04:18 PM   #9
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Re: 1972 GMC Sierra Grande 2500

pics are much better with you in them, gives the truck more class
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Old 06-15-2012, 04:34 PM   #10
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Re: 1972 GMC Sierra Grande 2500

Clean looking truck! There is a guy down the road that has a 72 gmc 3/4 4x4 thats the same color as yours that I would love to buy from him.
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Old 06-18-2012, 10:59 AM   #11
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Re: 1972 GMC Sierra Grande 2500

Quote:
Originally Posted by Tinkermc View Post
pics are much better with you in them, gives the truck more class
Not sure if that was sarcasm or not... so thanks! Haha
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Old 06-15-2012, 04:35 PM   #12
CC69Rat
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Re: 1972 GMC Sierra Grande 2500

TN in the house .. Good looking truck ! Welcome.
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Old 06-18-2012, 10:56 AM   #13
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Re: 1972 GMC Sierra Grande 2500

Thanks for the comments everybody!
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