Edelbrock Choke - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**FRENCHBLUE72** · 09-23-2003, 06:34 PM

Is there a way to adjust the electric choke on an edelbrock carb?? It really suck at 4:30 am to have my blazer start up at what seem;s 4500 rpm and then I have to damn near floor it to get the choke to back down to a 2000 or so rpm choke. Today on the way home I had to pull over cause the choke was so high in the rrrr's that I did not need to give it gas to do 25 mph. So I pulled over and stood on the gas and the choke kicked off and I drove home. Anyone have any idea's as to whet would help me I am damn tired of screwin with this p.o.s edelbrock carb..... Thank's for any help that is thrown my way...

crazy longhorn · 09-23-2003, 07:25 PM

My longhorn is back on the "HOLLEY", but here goes..... it sounds like the fast idle cam is set too high. my 1407 was a hand choke, so my best advice is check out the edelbrock site... http://www.edelbrock.com/ if you look into the carbs section, you will find lots of good info. Good luck,crazyL

Paul72 · 09-23-2003, 07:49 PM

I know exactly what your problem is - it starts with an "E". I never got comfortable with those carbs.

I have a Holley on mine and love it!

Carbs seem to be a more personal choice and people will stand behind the one they like the best. Good luck! If you switch to the Holley, I can be of more help.

Paul

**FRENCHBLUE72** · 09-23-2003, 07:58 PM

I have alway's ran holley's but seem's the last two I have gotten in deal's were edelbrock's.. If I can not get the choke fixed it is going on the part's board... Crazy-l thank's for the web site...

**COBALT** · 09-23-2003, 08:52 PM

I have the EXACT SAME PROBLEM.

Recently it seems as though it's gotten worse. It wants to kick up to a fast idle while I'm driving down the street, and it's everthing I can do to get on the brakes at a stoplight to stop without running into the back of someone (it's idling that high!). One kick on the accelerator and it drops back down to 800 rpm where it's supposed to be.

Problem is if I adjust it back down it wants to idle like hell after warm-up. I'm sure that would be fine once I'm on the road, but....

I've also adjusted it about a million times per Edelbrock's instructions. Can't seem to get it right.

**FRENCHBLUE72** · 09-23-2003, 08:55 PM

Shall we start the edelbrock ban!!!! Throw em away... I would like to get a demon!!!!!!

crazy longhorn · 09-23-2003, 08:59 PM

My biggest complaint on the edelbrock is that the accelerator pump is not very "tuneable". I love Holleys, & have been tuning them for many yrs (diehard fan)

crazyL

lukecp · 09-23-2003, 09:06 PM

Mine has none of the problems......guess i was lucky and got a good one, lol.

I have yet to try a holley, but whenever i build a non-daily driver street machine in the distant future, i will proabaly put a double pumper on it.

You might want to try the edelbrock tech line.....it would be easier to get instructions from a real person compared to the website.
The number is somewhere on their website....

Longhorn Man · 09-23-2003, 11:01 PM

let me give you my snail mail addy before you throw them away.

Hotrod70C10 · 09-23-2003, 11:24 PM

Are you getting a full 12 volts to the choke? I have a 1406 600cfm electric choke and it did this because I didn't have a full 12 volts to it. After I put more voltage to it the problem went away. That may be your problem you might want to check it out.

**FRENCHBLUE72** · 09-24-2003, 07:19 AM

Thank's for the reply I will check it out after work..

tom hand · 09-24-2003, 10:37 AM

Well edelbrocks are simple as dirt, so if you can't get on of those to work, you don't have a chance in he!! with a holley.

From the way you describe the problem, I would say the choke is not getting proper voltage or there is damage to your choke, because these the chokes kick off really east after 20 seconds or so. I have a Carter with the electric choke,[exact same carb] that I bought in 82 and it still works perfect, and has never been rebuilt...never had that kind of luck with a Holley

sixnine · 09-24-2003, 11:36 AM

I've got a 1406 that I've only had one problem with. When I hooked it up I put an inline fuse on the choke. This is probably unnecessary, but I like to be safe. Anyway, I wasn't sure what size fuse to use so I installed a 5 amp fuse the first time. The choke worked fine for a few days and then I started experiencing the fast idle on startup that you guys are complaining about. I checked the fuse and it was blown. I installed a 10 amp fuse and haven't had a problem since. My experience leads me to believe that tom hand and HotRod70C10 are right, the choke problem could be low voltage.

**COBALT** · 09-24-2003, 12:11 PM

Man last time I checked I was getting ~12v to the choke...guess I'll check it again. It's been a while. I put in an inline fuse as well. I think I used a 5 amp fuse...

Hotrod70C10 · 09-24-2003, 12:51 PM

No problem Frenchblue72

junkyarddog1956 · 09-24-2003, 01:15 PM

I am glad I checked this out ....I too am having the same problem with my E carb . I will definately check the voltage out ....thanks for the tip ...

**1970cstblazer** · 09-24-2003, 01:40 PM

I have had great luck with the Edelbrock carbs. They are as simple as you can get with a carb.

I also have had great luck with the Q-Jets.

I can't tell you how many Holleys I have seen end up in the trash.

I personally hate them.

lukecp · 09-24-2003, 01:49 PM

Also....

I have a 1" allumium spacer under my 1406. Right now it starts great when it is cold, but i hear that the spacer will make it a pain to get going and warmed up when it drops to around freez and and below outside.....is this true?

**COBALT** · 09-24-2003, 02:22 PM

Well turns out I put a 10 amp in-line fuse in there, and it's still good. The circuit runs from an ignition connection on the fuse block through the firewall to the choke via some nifty conduit I put in. Either that connection isn't working in the fuse block, or somewhere there's a short and it's not getting to the choke, or my choke is getting ~12v and it's not set up correctly.

**FRENCHBLUE72** · 09-24-2003, 07:06 PM

Low voltage problem for me thank's guy's for the reply's...

Hotrod70C10 · 09-24-2003, 07:29 PM

No problem at all... glad I could help!

Cobalt, I haven't worked on my electric choke so I can't help you with that. Hopefully someone else can help you out though!

Ackattack · 09-24-2003, 08:18 PM

I had a edelbrock on mine (600 manual choke), and swapped a Holley (600 electric choke) on a few weeks ago to see if I liked it. Well I defantly like the electric choke and easy startability of the holley, but I don't know where to begin with tuning on it and holley's website doesn't give you jack for information on tuning. I did pick up about 1 mpg with the swap.

I'll be ordering an electric choke and new jets and metering rods here in a few days for my edelbrock. We'll see if I can bump the mileage up a little by leaning it out a bit and get the good starting with the electric choke.

**COBALT** · 09-24-2003, 11:53 PM

I checked out the choke on my edelbrock. Turns out I have a strong 12V to the choke when the ignition is on.

I have no other alternatives other than the choke itself. The problem is one hit on the accelerator and it idles down where it should be (800 rpm or so).

It just wants to kick up, and usually when I'm slowing down to a stoplight. Then the RPM's are WAY up, and I have to stand on the brakes to stop. Once I put it in park and hit the accelerator again it kicks back down to normal idle.

If I reduce the fast idle then "normal idle" will be low and the engine will run rough.

Am I missing something? What about the adjustment on the choke housing itself?

lukecp · 09-24-2003, 11:56 PM

Cobalt, i just rememberd that i had that same problem this spring. The truck would not want to idle after letting off the gas.

$1 later a new throttle return spring solved the problem. My old spring was too weak to pull the throttle all the way down. Blipping the throttle with a weak spring will still take it down...you will just have to do it often.

**COBALT** · 09-25-2003, 12:01 AM

I have a dual spring Lokar setup. Believe me it's strong enough.

However, the throttle arm from the petal may be the culprit...

09-23-2003, 06:34 PM	#1
FRENCHBLUE72 PROJECT 7DEUCE Join Date: Dec 2002 Location: GRANTS PASS OR Posts: 21,604	Edelbrock Choke Is there a way to adjust the electric choke on an edelbrock carb?? It really suck at 4:30 am to have my blazer start up at what seem;s 4500 rpm and then I have to damn near floor it to get the choke to back down to a 2000 or so rpm choke. Today on the way home I had to pull over cause the choke was so high in the rrrr's that I did not need to give it gas to do 25 mph. So I pulled over and stood on the gas and the choke kicked off and I drove home. Anyone have any idea's as to whet would help me I am damn tired of screwin with this p.o.s edelbrock carb..... Thank's for any help that is thrown my way... __________________ GO BIG GREEN GO DUCKS MEMBER #6377 72 k-5 daily driver 6'' lift 35'' 350-350-205 slowly getting rust free. Project "7DEUCE" check out my build http://67-72chevytrucks.com/vboard/s...d.php?t=267665 Tim Powell..R.I.P EastSideLowlife..... R.I.P..

09-23-2003, 07:25 PM	#2
crazy longhorn Fabricate till you "puke" Join Date: Jun 2002 Location: Ill Posts: 9,403	My longhorn is back on the "HOLLEY", but here goes..... it sounds like the fast idle cam is set too high. my 1407 was a hand choke, so my best advice is check out the edelbrock site... http://www.edelbrock.com/ if you look into the carbs section, you will find lots of good info. Good luck,crazyL __________________ 69 longhorn,4" chop,3/5 drop, 1/2 ton suspension/disc brakes,1 1/2" body drop,steel tilt clip, 5.3/Edelbrock rpm intake/600 carb, Hooker streetrod shorties,2 1/2" exhaust/ H pipe/50's Flows , 6 spd Richmond trans,12 bolt/ 3.40 gears....

09-23-2003, 07:49 PM	#3
Paul72 Registered User Join Date: Sep 2003 Location: Waterloo, IA Posts: 1,147	I know exactly what your problem is - it starts with an "E". I never got comfortable with those carbs. I have a Holley on mine and love it! Carbs seem to be a more personal choice and people will stand behind the one they like the best. Good luck! If you switch to the Holley, I can be of more help. Paul __________________ '72 Chevy K20 - 383/4sp/205 - SOLD after 41 years in the family Next project - K/5 Tahoe (71 Blazer on 99 Tahoe chassis) Build thread: http://67-72chevytrucks.com/vboard/s...d.php?t=789958

09-23-2003, 07:58 PM	#4
FRENCHBLUE72 PROJECT 7DEUCE Join Date: Dec 2002 Location: GRANTS PASS OR Posts: 21,604	I have alway's ran holley's but seem's the last two I have gotten in deal's were edelbrock's.. If I can not get the choke fixed it is going on the part's board... Crazy-l thank's for the web site... __________________ GO BIG GREEN GO DUCKS MEMBER #6377 72 k-5 daily driver 6'' lift 35'' 350-350-205 slowly getting rust free. Project "7DEUCE" check out my build http://67-72chevytrucks.com/vboard/s...d.php?t=267665 Tim Powell..R.I.P EastSideLowlife..... R.I.P..

09-23-2003, 08:52 PM	#5
COBALT Senior Member Join Date: Sep 2001 Location: Seattle, WA, USA Posts: 5,817	I have the EXACT SAME PROBLEM. Recently it seems as though it's gotten worse. It wants to kick up to a fast idle while I'm driving down the street, and it's everthing I can do to get on the brakes at a stoplight to stop without running into the back of someone (it's idling that high!). One kick on the accelerator and it drops back down to 800 rpm where it's supposed to be. Problem is if I adjust it back down it wants to idle like hell after warm-up. I'm sure that would be fine once I'm on the road, but.... I've also adjusted it about a million times per Edelbrock's instructions. Can't seem to get it right. __________________ '69 3/4 ton C20 2wd-350ci/TH400 '69 3/4 ton Custom 20 2wd-350ci/4sp Manual '99 2wd 5.7 Chevy Tahoe Seattle, WA.

09-23-2003, 08:55 PM	#6
FRENCHBLUE72 PROJECT 7DEUCE Join Date: Dec 2002 Location: GRANTS PASS OR Posts: 21,604	Shall we start the edelbrock ban!!!! Throw em away... I would like to get a demon!!!!!! __________________ GO BIG GREEN GO DUCKS MEMBER #6377 72 k-5 daily driver 6'' lift 35'' 350-350-205 slowly getting rust free. Project "7DEUCE" check out my build http://67-72chevytrucks.com/vboard/s...d.php?t=267665 Tim Powell..R.I.P EastSideLowlife..... R.I.P..

09-23-2003, 08:59 PM	#7
crazy longhorn Fabricate till you "puke" Join Date: Jun 2002 Location: Ill Posts: 9,403	My biggest complaint on the edelbrock is that the accelerator pump is not very "tuneable". I love Holleys, & have been tuning them for many yrs (diehard fan) crazyL __________________ 69 longhorn,4" chop,3/5 drop, 1/2 ton suspension/disc brakes,1 1/2" body drop,steel tilt clip, 5.3/Edelbrock rpm intake/600 carb, Hooker streetrod shorties,2 1/2" exhaust/ H pipe/50's Flows , 6 spd Richmond trans,12 bolt/ 3.40 gears....

09-23-2003, 09:06 PM	#8
lukecp Formerly yellow72custom Join Date: May 2001 Location: Austin, TX Posts: 7,531	Mine has none of the problems......guess i was lucky and got a good one, lol. I have yet to try a holley, but whenever i build a non-daily driver street machine in the distant future, i will proabaly put a double pumper on it. You might want to try the edelbrock tech line.....it would be easier to get instructions from a real person compared to the website. The number is somewhere on their website.... __________________ '72 Chevy C10 Mild 350/TH350/3.07. Ochre/White. Old high school ride. '70 GMC C2500 '62 327 4bbl/SM465/4.56-geared Dana 60. White/White. Project or parts truck. '97 Saturn SL DD. 1.9/5-speed. 40+ highway mpg

09-23-2003, 11:01 PM	#9
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,693	let me give you my snail mail addy before you throw them away.

09-23-2003, 11:24 PM	#10
Hotrod70C10 Low & Slow Join Date: Dec 2002 Location: Oklahoma Posts: 1,047	Are you getting a full 12 volts to the choke? I have a 1406 600cfm electric choke and it did this because I didn't have a full 12 volts to it. After I put more voltage to it the problem went away. That may be your problem you might want to check it out. __________________ 70' C-10 LWB Fleetside 4.5/6 drop

09-24-2003, 07:19 AM	#11
FRENCHBLUE72 PROJECT 7DEUCE Join Date: Dec 2002 Location: GRANTS PASS OR Posts: 21,604	Thank's for the reply I will check it out after work.. __________________ GO BIG GREEN GO DUCKS MEMBER #6377 72 k-5 daily driver 6'' lift 35'' 350-350-205 slowly getting rust free. Project "7DEUCE" check out my build http://67-72chevytrucks.com/vboard/s...d.php?t=267665 Tim Powell..R.I.P EastSideLowlife..... R.I.P..

09-24-2003, 10:37 AM	#12
tom hand CCRider Join Date: Feb 2000 Location: Olive Branch,MS,USA Posts: 2,232	Well edelbrocks are simple as dirt, so if you can't get on of those to work, you don't have a chance in he!! with a holley. From the way you describe the problem, I would say the choke is not getting proper voltage or there is damage to your choke, because these the chokes kick off really east after 20 seconds or so. I have a Carter with the electric choke,[exact same carb] that I bought in 82 and it still works perfect, and has never been rebuilt...never had that kind of luck with a Holley __________________ 72 GMC Sierra SWB almost finished---- 84 Softail Olive Branch MS

09-24-2003, 11:36 AM	#13
sixnine Longtime Member Join Date: Oct 2002 Location: Over Yonder (DFW) Posts: 171	I've got a 1406 that I've only had one problem with. When I hooked it up I put an inline fuse on the choke. This is probably unnecessary, but I like to be safe. Anyway, I wasn't sure what size fuse to use so I installed a 5 amp fuse the first time. The choke worked fine for a few days and then I started experiencing the fast idle on startup that you guys are complaining about. I checked the fuse and it was blown. I installed a 10 amp fuse and haven't had a problem since. My experience leads me to believe that tom hand and HotRod70C10 are right, the choke problem could be low voltage. __________________ Rokcrln - *"I'm a major car addict so trying to go as low buck as possible is like asking a coke head to use flower to save money."* 1972 C10 Short Step -http://67-72chevytrucks.com/vboard/s...d.php?t=261405 Last edited by sixnine; 09-24-2003 at 11:41 AM.

09-24-2003, 12:11 PM	#14
COBALT Senior Member Join Date: Sep 2001 Location: Seattle, WA, USA Posts: 5,817	Man last time I checked I was getting ~12v to the choke...guess I'll check it again. It's been a while. I put in an inline fuse as well. I think I used a 5 amp fuse... __________________ '69 3/4 ton C20 2wd-350ci/TH400 '69 3/4 ton Custom 20 2wd-350ci/4sp Manual '99 2wd 5.7 Chevy Tahoe Seattle, WA.

09-24-2003, 12:51 PM	#15
Hotrod70C10 Low & Slow Join Date: Dec 2002 Location: Oklahoma Posts: 1,047	No problem Frenchblue72 __________________ 70' C-10 LWB Fleetside 4.5/6 drop



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09-24-2003, 01:15 PM	#16
junkyarddog1956 Registered User Join Date: Sep 2003 Location: Thorntown , Indiana Posts: 231	I am glad I checked this out ....I too am having the same problem with my E carb . I will definately check the voltage out ....thanks for the tip ...

09-24-2003, 01:40 PM	#17
1970cstblazer All stock and staying that way Join Date: Jul 2003 Location: Elkland, PA Posts: 1,441	I have had great luck with the Edelbrock carbs. They are as simple as you can get with a carb. I also have had great luck with the Q-Jets. I can't tell you how many Holleys I have seen end up in the trash. I personally hate them.

09-24-2003, 01:49 PM	#18
lukecp Formerly yellow72custom Join Date: May 2001 Location: Austin, TX Posts: 7,531	Also.... I have a 1" allumium spacer under my 1406. Right now it starts great when it is cold, but i hear that the spacer will make it a pain to get going and warmed up when it drops to around freez and and below outside.....is this true? __________________ '72 Chevy C10 Mild 350/TH350/3.07. Ochre/White. Old high school ride. '70 GMC C2500 '62 327 4bbl/SM465/4.56-geared Dana 60. White/White. Project or parts truck. '97 Saturn SL DD. 1.9/5-speed. 40+ highway mpg

09-24-2003, 02:22 PM	#19
COBALT Senior Member Join Date: Sep 2001 Location: Seattle, WA, USA Posts: 5,817	Well turns out I put a 10 amp in-line fuse in there, and it's still good. The circuit runs from an ignition connection on the fuse block through the firewall to the choke via some nifty conduit I put in. Either that connection isn't working in the fuse block, or somewhere there's a short and it's not getting to the choke, or my choke is getting ~12v and it's not set up correctly. __________________ '69 3/4 ton C20 2wd-350ci/TH400 '69 3/4 ton Custom 20 2wd-350ci/4sp Manual '99 2wd 5.7 Chevy Tahoe Seattle, WA.

09-24-2003, 07:06 PM	#20
FRENCHBLUE72 PROJECT 7DEUCE Join Date: Dec 2002 Location: GRANTS PASS OR Posts: 21,604	Low voltage problem for me thank's guy's for the reply's... __________________ GO BIG GREEN GO DUCKS MEMBER #6377 72 k-5 daily driver 6'' lift 35'' 350-350-205 slowly getting rust free. Project "7DEUCE" check out my build http://67-72chevytrucks.com/vboard/s...d.php?t=267665 Tim Powell..R.I.P EastSideLowlife..... R.I.P..

09-24-2003, 07:29 PM	#21
Hotrod70C10 Low & Slow Join Date: Dec 2002 Location: Oklahoma Posts: 1,047	No problem at all... glad I could help! Cobalt, I haven't worked on my electric choke so I can't help you with that. Hopefully someone else can help you out though! __________________ 70' C-10 LWB Fleetside 4.5/6 drop

09-24-2003, 08:18 PM	#22
Ackattack Senior Member Join Date: Aug 2002 Location: Valley Center KS Posts: 3,525	I had a edelbrock on mine (600 manual choke), and swapped a Holley (600 electric choke) on a few weeks ago to see if I liked it. Well I defantly like the electric choke and easy startability of the holley, but I don't know where to begin with tuning on it and holley's website doesn't give you jack for information on tuning. I did pick up about 1 mpg with the swap. I'll be ordering an electric choke and new jets and metering rods here in a few days for my edelbrock. We'll see if I can bump the mileage up a little by leaning it out a bit and get the good starting with the electric choke. __________________ Project Bruiser: 68 Pro-Touring C-10 5.3L / 4L60E Project Ironhide: 97 GMC Crew Cab 4x4 Cummins SOLD: '69 GMC 1/2T SWB TBI'd: Project No Buck Assembly Manual Index Sign up Thread!!! Factory Service Manual Index

09-24-2003, 11:53 PM	#23
COBALT Senior Member Join Date: Sep 2001 Location: Seattle, WA, USA Posts: 5,817	I checked out the choke on my edelbrock. Turns out I have a strong 12V to the choke when the ignition is on. I have no other alternatives other than the choke itself. The problem is one hit on the accelerator and it idles down where it should be (800 rpm or so). It just wants to kick up, and usually when I'm slowing down to a stoplight. Then the RPM's are WAY up, and I have to stand on the brakes to stop. Once I put it in park and hit the accelerator again it kicks back down to normal idle. If I reduce the fast idle then "normal idle" will be low and the engine will run rough. Am I missing something? What about the adjustment on the choke housing itself? __________________ '69 3/4 ton C20 2wd-350ci/TH400 '69 3/4 ton Custom 20 2wd-350ci/4sp Manual '99 2wd 5.7 Chevy Tahoe Seattle, WA.

09-24-2003, 11:56 PM	#24
lukecp Formerly yellow72custom Join Date: May 2001 Location: Austin, TX Posts: 7,531	Cobalt, i just rememberd that i had that same problem this spring. The truck would not want to idle after letting off the gas. $1 later a new throttle return spring solved the problem. My old spring was too weak to pull the throttle all the way down. Blipping the throttle with a weak spring will still take it down...you will just have to do it often. __________________ '72 Chevy C10 Mild 350/TH350/3.07. Ochre/White. Old high school ride. '70 GMC C2500 '62 327 4bbl/SM465/4.56-geared Dana 60. White/White. Project or parts truck. '97 Saturn SL DD. 1.9/5-speed. 40+ highway mpg

09-25-2003, 12:01 AM	#25
COBALT Senior Member Join Date: Sep 2001 Location: Seattle, WA, USA Posts: 5,817	I have a dual spring Lokar setup. Believe me it's strong enough. However, the throttle arm from the petal may be the culprit... __________________ '69 3/4 ton C20 2wd-350ci/TH400 '69 3/4 ton Custom 20 2wd-350ci/4sp Manual '99 2wd 5.7 Chevy Tahoe Seattle, WA.

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