Carburator fixed itself? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

lil hoodlum · 05-22-2024, 01:11 AM

I had a Quadrajet on my 1968 C10. It started acting up. Every morning the fuel bolwls would be empty. It also had some drivablity issues pop up as I was driving it.

I knew it was a problem so I didn't want to ignore it as the problem was likely to get worse.

So I ended up buying 3 more Quadrajets till the 3rd one worked properly.

A couple months ago I was changing the fuel filter in the carburator but managed to over tighten the fuel filter fitting, stripping the threads....

Great. So I go back through installing all of the other carburator only to find the orginal one would actually work. After a few days, I remembered why I pulled it off in the first place. I lived with its quirks for a few weeks until the fuel bowl would be emptly again. I was using little plastic bottles to fill the fuel bowl up just to save my battery from cranking so much to fill the carb up.

After awhile, I decided to use some Seafoam cleaner. On the drive home, it seemed like the old motor was running better and even maybe a little bit more peppier. I noticed in the next few days it took less gas from the plastic bottles to fill the fuel bowl up. Sure enough, after the fourth day, the fuel bowl was no longer empty overnight. It even drives better and is more responsive.

My fuel consuption has even gotten better. I fill up every week on the same day and drive pretty much the same distance every week. It used to take me 13 or 14 gallons to fill up. Lately it has been 9 gallons going the same distance.

If you have been having issues with your carburator, its worth a try to try some Seafoam or other fuel system cleaner.

**1970cstblazer** · 05-22-2024, 07:26 AM

I am a Seafoam believer. It does what they say it does, especially on small engines. It does clean the gunk away.

72c20customcamper · 05-22-2024, 07:40 AM

Sea foam is great I use it a lot in my everyday vehicles the old stuff get straight non E fuel . You must have had some sludge in the system and the sea foam cleaned it out .

**Rust_never_sleeps** · 05-22-2024, 11:39 AM

could be the well plugs were leaking and(depending on the type o' plug), Seafoam may have conditioned the seals in them. IF they're plugged with epoxy, like most are, then I have no idea

05-22-2024, 01:11 AM	#1
lil hoodlum Registered User Join Date: Oct 2009 Location: Denton, Texas Posts: 1,735	Carburator fixed itself? I had a Quadrajet on my 1968 C10. It started acting up. Every morning the fuel bolwls would be empty. It also had some drivablity issues pop up as I was driving it. I knew it was a problem so I didn't want to ignore it as the problem was likely to get worse. So I ended up buying 3 more Quadrajets till the 3rd one worked properly. A couple months ago I was changing the fuel filter in the carburator but managed to over tighten the fuel filter fitting, stripping the threads.... Great. So I go back through installing all of the other carburator only to find the orginal one would actually work. After a few days, I remembered why I pulled it off in the first place. I lived with its quirks for a few weeks until the fuel bowl would be emptly again. I was using little plastic bottles to fill the fuel bowl up just to save my battery from cranking so much to fill the carb up. After awhile, I decided to use some Seafoam cleaner. On the drive home, it seemed like the old motor was running better and even maybe a little bit more peppier. I noticed in the next few days it took less gas from the plastic bottles to fill the fuel bowl up. Sure enough, after the fourth day, the fuel bowl was no longer empty overnight. It even drives better and is more responsive. My fuel consuption has even gotten better. I fill up every week on the same day and drive pretty much the same distance every week. It used to take me 13 or 14 gallons to fill up. Lately it has been 9 gallons going the same distance. If you have been having issues with your carburator, its worth a try to try some Seafoam or other fuel system cleaner. __________________ 1968 C10 327, 3 speed manual, LWB stock height daily driver. 1968 C20 327, 4 speed manual, LWB stock height custom camper with heavy duty leaf springs rear, 50th anniversary edition. Hoping to press into daily drive status soon. Last edited by lil hoodlum; 05-22-2024 at 01:13 AM. Reason: typos

05-22-2024, 07:26 AM	#2
1970cstblazer All stock and staying that way Join Date: Jul 2003 Location: Elkland, PA Posts: 1,825	Re: Carburator fixed itself? I am a Seafoam believer. It does what they say it does, especially on small engines. It does clean the gunk away. __________________ 1970 K/5 Blazer CST 4WD, Medium Bronze, 93k ACT. miles, 350, 4 speed, rear positraction, 16.5" x 8.25" HD wheel option, tilt, tach, vacuum, AM/FM, manual throttle...Dad ordered and purchased new 4/70. Currently frame off restoration finally getting close to completion.. 1972 Cheyenne Super 20 2WD, DK Blue/White, 90K ACT. miles, 402, TH400, 4.10 open, tilt, tach, vacuum, A/C, AM/FM, manual throttle.. A mostly original paint never rusted Texas survivor... 2017 Sierra 1500 SLT 4WD, Black, 45k miles, 5.3, 6L80E, 3.42 LS, 20" polished wheels, everything but moonroof and 6.2... 2019 Canyon SLT 4WD, White, 62k miles, 3.6, 8L45, 3.23 LS, 18" wheels

05-22-2024, 07:40 AM	#3
72c20customcamper Registered User Join Date: Jul 2018 Location: Catskill Mountains,NY Posts: 8,716	Re: Carburator fixed itself? Sea foam is great I use it a lot in my everyday vehicles the old stuff get straight non E fuel . You must have had some sludge in the system and the sea foam cleaned it out . __________________ Mark 72 c20 custom camper Husky edition, 66 SS396 Chevelle 1964 Hawk, 63 Avanti,62 lark 1969 AMX , 1968 c20 stepside ,85 K20 1977 Suburban sold 68 anniversary.

05-22-2024, 11:39 AM	#4
Rust_never_sleeps Senior Member Join Date: Jun 2022 Location: San Ramon,CA Posts: 591	Re: Carburator fixed itself? could be the well plugs were leaking and(depending on the type o' plug), Seafoam may have conditioned the seals in them. IF they're plugged with epoxy, like most are, then I have no idea __________________ 1970 C10 Custom longbed 350/350



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