Question for 86 k10 owners - The 1947 - Present Chevrolet & GMC Truck Message Board Network

mhorning · 09-16-2003, 06:31 PM

I'm thinking about replacing the stock quadrajet on my 86. I know this carb is specific to this year. It has some sort of electronic thing built in to it. I'm wondering if anyone here has made a conversion and what did you use?

Prerunner1982 · 09-16-2003, 08:12 PM

maybe i just dont know about qjets, but what electronic thing are you talking about? there is electronic choke if thats what you are talking about, but thats not specific for your year. more info would be great appreciated.

mhorning · 09-16-2003, 08:55 PM

I believe it is called a mixture control solenoid. Its on top of the carb. Here's a pic

mhorning · 09-16-2003, 08:57 PM

Try to attach this pic again

apstguy · 09-16-2003, 09:54 PM

It was a 85-86 thing.

I got the friggin thing too. If you live in CA, your truck came with one.

Slonaker · 09-17-2003, 09:43 AM

Hey, that's my carb in your pic! I'm practically famous...

I'm not sure what you are asking, but I think that Edelbrock makes an emissions legal replacement carb that gets rid of that thing. It is the 1904.

http://www.edelbrock.com/automotive/carb_qjet.html

Slonaker

CRRoy71 · 09-17-2003, 12:16 PM

I also just bought the 1904. I will be putting it on the 383 that is in progress.

BigRed · 09-18-2003, 09:41 AM

Quote:

Originally posted by apstguy
It was a 85-86 thing. I got the friggin thing too. If you live in CA, your truck came with one.

I've got that on my '86 'burb and was wondering just last night what it was. My truck was bought her locally so I don't think it's limited to Cali.

apstguy · 09-18-2003, 06:35 PM

There is one problem. The statment is not really true about the 50 state legal. All the replacement carbs say "NOT FOR USE ON COMPUTER CONTROLED VEHICLE" meaning if you have one of those electronic carbs, you can't use it as a direct replacement. That also means if you have a CA truck, they are illegal.

Calif has more emissions stuff on them. I knew in CA you definitly had it, but I didn't know if it was federal too. If it was federal, I think it was an 86 only thing.

crackajacka · 09-18-2003, 11:57 PM

ive got the same carb on my truck and i live in oklahoma

mhorning · 09-19-2003, 09:46 AM

Slonaker,

Yeah it is your carb. I used the pic from last time you helped with the wiring. Hope you didn't mind. It was still on my computer. The carb still runs rough, so I'm thinking about buying a new one.Thanks for the info

mhorning · 09-19-2003, 09:48 AM

One other question. The quadrjet has a solenoid on the side of it the kicks up the idle when the AC is on. I noticed that the edelbrock doesn't. Think it should still work with AC trucks?

Slonaker · 09-19-2003, 10:01 AM

I'm not sure, but I think you can bolt your old one on in place of it.

No I don't mind you using the pic. I was just surprised to see it again.

Slonaker

BigRed · 09-19-2003, 01:07 PM

Quote:

Originally posted by mhorning
One other question. The quadrjet has a solenoid on the side of it the kicks up the idle when the AC is on. I noticed that the edelbrock doesn't. Think it should still work with AC trucks?

Mine is not connected right now on my stock Quadrajet. However, I have runon probably due to that it's missing. I checked with the Chevy dealership today and they want $90 for that part (Idle Stop Solenoid). However, you can get it at any other parts store for about $25 - $30.

Edelbrock also sells an aftermarket version of the idle stop solenoid. But it's pricey too!

By the way, whats the model number on these carbs? Just curious.

mhorning · 09-19-2003, 02:14 PM

scott the model number is 17085226. Hey do you guys know if our truck has ESC control. I thought I heard that this carb worked with the distributor to maintain fuel air mixture. If so, I'm wondering if the computer that controls the system is screwing up my idle.

Oh and one more question, should this truck have an O2 sensor? I know I don't have one.

Slonaker · 09-19-2003, 04:52 PM

Our trucks have the ESC. You can find out if yours has been removed by looking t the distributor. It it has a flat plug about 1.5 inched wide hanging off the side, you still have the ESC in place. As far as I know, the carb is not computer controlled. Again, AFAIK, the ESC just retards the timing if the knock sensor (on the passenger side of the block, just above the oil pan) detects pinging.

Swervin has instructions for bypassing it on his site, www.73-87.com

BTW, I don't have an O2 sensor. I don't think it is supposed to have one, either.

Slonaker

09-16-2003, 06:31 PM	#1
mhorning Registered User Join Date: Jul 2003 Location: Corning, NY Posts: 158	Question for 86 k10 owners I'm thinking about replacing the stock quadrajet on my 86. I know this carb is specific to this year. It has some sort of electronic thing built in to it. I'm wondering if anyone here has made a conversion and what did you use?

09-16-2003, 08:12 PM	#2
Prerunner1982 Registered User Join Date: Oct 2002 Location: Edmond, OK Posts: 5,906	maybe i just dont know about qjets, but what electronic thing are you talking about? there is electronic choke if thats what you are talking about, but thats not specific for your year. more info would be great appreciated. __________________ Jon 1982 Chevy Silverado 350/th350.... RETIRED 1993 Jeep XJ 2 door(Cherokee) 4wd 4.0ltr/AX-15 (5spd)/NP231 .... Oklahoma Roll Call

09-16-2003, 08:57 PM	#4
mhorning Registered User Join Date: Jul 2003 Location: Corning, NY Posts: 158	Try to attach this pic again Attached Images

09-16-2003, 09:54 PM	#5
apstguy LED King Join Date: Jan 2003 Location: Sacramento, CA Posts: 2,088	It was a 85-86 thing. I got the friggin thing too. If you live in CA, your truck came with one. __________________ Tyler 1985 C10 305 w/ Bowtie OD TH700R4 3.42 LSD 202,000 miles 2006 Ford Focus ZX3 5-speed Stick 2016 Chevy Spark EV Gone: 2002.5 VW GTI 24v VR6 Gone: 2008 VW R32

09-17-2003, 09:43 AM	#6
Slonaker Insert Witty Text Here Join Date: Oct 2002 Location: San Antonio, TX Posts: 3,415	Hey, that's my carb in your pic! I'm practically famous... I'm not sure what you are asking, but I think that Edelbrock makes an emissions legal replacement carb that gets rid of that thing. It is the 1904. http://www.edelbrock.com/automotive/carb_qjet.html Slonaker __________________ '86 Chevy C10 (Sold 04/19/13 ) Stock '01 Silverado

09-16-2003, 08:55 PM	#3
mhorning Registered User Join Date: Jul 2003 Location: Corning, NY Posts: 158	I believe it is called a mixture control solenoid. Its on top of the carb. Here's a pic

09-17-2003, 12:16 PM	#7
CRRoy71 Registered User Join Date: Feb 2003 Location: Mont Belvieu, TX Posts: 852	I also just bought the 1904. I will be putting it on the 383 that is in progress. __________________ Chris '92 ext. cab s/b 4.3L "Sparky" '04 crew cab 2500 4x4 6.0L

09-18-2003, 06:35 PM	#9
apstguy LED King Join Date: Jan 2003 Location: Sacramento, CA Posts: 2,088	There is one problem. The statment is not really true about the 50 state legal. All the replacement carbs say "NOT FOR USE ON COMPUTER CONTROLED VEHICLE" meaning if you have one of those electronic carbs, you can't use it as a direct replacement. That also means if you have a CA truck, they are illegal. Calif has more emissions stuff on them. I knew in CA you definitly had it, but I didn't know if it was federal too. If it was federal, I think it was an 86 only thing. __________________ Tyler 1985 C10 305 w/ Bowtie OD TH700R4 3.42 LSD 202,000 miles 2006 Ford Focus ZX3 5-speed Stick 2016 Chevy Spark EV Gone: 2002.5 VW GTI 24v VR6 Gone: 2008 VW R32

09-18-2003, 11:57 PM	#10
crackajacka Stylin Join Date: Sep 2001 Location: Tuttle, OK Posts: 620	ive got the same carb on my truck and i live in oklahoma __________________ Ive been traveling for some time, with my fishin pole and my bottle of shyne. Most Girls like finished products and just dont understand what a good addiction does for you http://www.paulwall.us/

09-19-2003, 09:46 AM	#11
mhorning Registered User Join Date: Jul 2003 Location: Corning, NY Posts: 158	Slonaker, Yeah it is your carb. I used the pic from last time you helped with the wiring. Hope you didn't mind. It was still on my computer. The carb still runs rough, so I'm thinking about buying a new one.Thanks for the info

09-19-2003, 09:48 AM	#12
mhorning Registered User Join Date: Jul 2003 Location: Corning, NY Posts: 158	One other question. The quadrjet has a solenoid on the side of it the kicks up the idle when the AC is on. I noticed that the edelbrock doesn't. Think it should still work with AC trucks?

09-19-2003, 10:01 AM	#13
Slonaker Insert Witty Text Here Join Date: Oct 2002 Location: San Antonio, TX Posts: 3,415	I'm not sure, but I think you can bolt your old one on in place of it. No I don't mind you using the pic. I was just surprised to see it again. Slonaker __________________ '86 Chevy C10 (Sold 04/19/13 ) Stock '01 Silverado

09-19-2003, 02:14 PM	#15
mhorning Registered User Join Date: Jul 2003 Location: Corning, NY Posts: 158	scott the model number is 17085226. Hey do you guys know if our truck has ESC control. I thought I heard that this carb worked with the distributor to maintain fuel air mixture. If so, I'm wondering if the computer that controls the system is screwing up my idle. Oh and one more question, should this truck have an O2 sensor? I know I don't have one.

09-19-2003, 04:52 PM	#16
Slonaker Insert Witty Text Here Join Date: Oct 2002 Location: San Antonio, TX Posts: 3,415	Our trucks have the ESC. You can find out if yours has been removed by looking t the distributor. It it has a flat plug about 1.5 inched wide hanging off the side, you still have the ESC in place. As far as I know, the carb is not computer controlled. Again, AFAIK, the ESC just retards the timing if the knock sensor (on the passenger side of the block, just above the oil pan) detects pinging. Swervin has instructions for bypassing it on his site, www.73-87.com BTW, I don't have an O2 sensor. I don't think it is supposed to have one, either. Slonaker __________________ '86 Chevy C10 (Sold 04/19/13 ) Stock '01 Silverado Last edited by Slonaker; 09-19-2003 at 04:55 PM.



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