question on a 1986 GMC 1500 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

88 Dippy · 03-03-2009, 08:01 PM

ok i am helpping a friend on his 86 GMC it's stock 2 wheel drive with a small block. my question is are these years computer controled with a feed back carb? or are they still just anormal 4bbl and HEI?

i know stupid question but i can't seem to find an answer

tvblazer78 · 03-03-2009, 08:24 PM

Quote:

Originally Posted by 88 Dippy

ok i am helpping a friend on his 86 GMC it's stock 2 wheel drive with a small block. my question is are these years computer controled with a feed back carb? or are they still just anormal 4bbl and HEI?

i know stupid question but i can't seem to find an answer

That's not a stupid question, most people don't know about that, and I think it is computer carb. Is this right guys?

88 Dippy · 03-03-2009, 08:30 PM

ok well here is what i am helping with when cold it is will not idle you have to hold the throttle to warm it up. not a big deal bt he likes to start his vehicles and then do some thing else as they worm up. seems like it desn't go in to fast idle

staggerd86c-10 · 03-04-2009, 12:27 AM

im having the same problem with my 86

88 Dippy · 03-04-2009, 12:31 AM

is yours computer controled when it was stock?

staggerd86c-10 · 03-04-2009, 12:36 AM

to be honest with you i have no idea where would there be a computer? i have no idea.

88 Dippy · 03-04-2009, 12:37 AM

Quote:

Originally Posted by staggerd86c-10

to be honest with you i have no idea where would there be a computer? i have no idea.

i want to say under the dash but it's been a wile since i worked on one.

rick1956 · 03-04-2009, 12:49 AM

My 86 GMC K1500 had the computer and the "electronic" q-jet carb setup. It caused me a lot of grief. I finally gave up and sold it and bought an 84 Chev. My carb worked fine, but the truck refused to allow spark to the ignition circuit unless it wanted to. When it ran, it ran great.

That minor rant aside, your computer is up underneath the glove compartment. You'll see it up there...

88 Dippy · 03-04-2009, 12:50 AM

ok that will help then. now i can look up the correct carb on alldata

Pyrotechnic · 03-04-2009, 04:51 AM

Sounds like the choke isn't closing enough.

03-03-2009, 08:01 PM	#1
88 Dippy Registered User Join Date: Feb 2009 Location: mt. Pleasant, MI Posts: 246	question on a 1986 GMC 1500 ok i am helpping a friend on his 86 GMC it's stock 2 wheel drive with a small block. my question is are these years computer controled with a feed back carb? or are they still just anormal 4bbl and HEI? i know stupid question but i can't seem to find an answer __________________ 1974 chevy Cheyenne C10 "The Mutt":4x4 convertion, NP208, 700-R4, stock 350, edelbrock Torker intake, edelbrock 600 CFM carb, duels 2001 Pontiac Grand Prix GT: 3.8L supercharged, 9.2:1 comprestion, ZZP XP cam, home made intake, 2 1/2" exhuast, 10psi of boost

03-03-2009, 08:30 PM	#3
88 Dippy Registered User Join Date: Feb 2009 Location: mt. Pleasant, MI Posts: 246	Re: question on a 1986 GMC 1500 ok well here is what i am helping with when cold it is will not idle you have to hold the throttle to warm it up. not a big deal bt he likes to start his vehicles and then do some thing else as they worm up. seems like it desn't go in to fast idle __________________ 1974 chevy Cheyenne C10 "The Mutt":4x4 convertion, NP208, 700-R4, stock 350, edelbrock Torker intake, edelbrock 600 CFM carb, duels 2001 Pontiac Grand Prix GT: 3.8L supercharged, 9.2:1 comprestion, ZZP XP cam, home made intake, 2 1/2" exhuast, 10psi of boost

03-04-2009, 12:27 AM	#4
staggerd86c-10 Squarebody Aficionado Join Date: May 2008 Location: Miami, FL Posts: 713	Re: question on a 1986 GMC 1500 im having the same problem with my 86

03-04-2009, 12:31 AM	#5
88 Dippy Registered User Join Date: Feb 2009 Location: mt. Pleasant, MI Posts: 246	Re: question on a 1986 GMC 1500 is yours computer controled when it was stock? __________________ 1974 chevy Cheyenne C10 "The Mutt":4x4 convertion, NP208, 700-R4, stock 350, edelbrock Torker intake, edelbrock 600 CFM carb, duels 2001 Pontiac Grand Prix GT: 3.8L supercharged, 9.2:1 comprestion, ZZP XP cam, home made intake, 2 1/2" exhuast, 10psi of boost

03-04-2009, 12:36 AM	#6
staggerd86c-10 Squarebody Aficionado Join Date: May 2008 Location: Miami, FL Posts: 713	Re: question on a 1986 GMC 1500 to be honest with you i have no idea where would there be a computer? i have no idea.

03-04-2009, 12:49 AM	#8
rick1956 Registered User Join Date: Jan 2009 Location: Edgewood, WA Posts: 108	Re: question on a 1986 GMC 1500 My 86 GMC K1500 had the computer and the "electronic" q-jet carb setup. It caused me a lot of grief. I finally gave up and sold it and bought an 84 Chev. My carb worked fine, but the truck refused to allow spark to the ignition circuit unless it wanted to. When it ran, it ran great. That minor rant aside, your computer is up underneath the glove compartment. You'll see it up there... __________________ I may be old, but I still enjoy the feeling of the earth rotating beneath my wheels...

03-04-2009, 12:50 AM	#9
88 Dippy Registered User Join Date: Feb 2009 Location: mt. Pleasant, MI Posts: 246	Re: question on a 1986 GMC 1500 ok that will help then. now i can look up the correct carb on alldata __________________ 1974 chevy Cheyenne C10 "The Mutt":4x4 convertion, NP208, 700-R4, stock 350, edelbrock Torker intake, edelbrock 600 CFM carb, duels 2001 Pontiac Grand Prix GT: 3.8L supercharged, 9.2:1 comprestion, ZZP XP cam, home made intake, 2 1/2" exhuast, 10psi of boost

03-04-2009, 04:51 AM	#10
Pyrotechnic Registered User Join Date: Feb 2007 Location: Austin, TX Posts: 3,930	Re: question on a 1986 GMC 1500 Sounds like the choke isn't closing enough. __________________ 1977 GMC Sierra Grande



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