Carburator problem???
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Joined: Oct 2014
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Carburator problem???
Hey Guys. got a 350 4 barrel 78 c3... it runs good but when I go a few miles it seem to run out of gas but it has gas in it ... pull over and restart it fire right up and drive another few mile and happens again.. any idea's .. thanks for your help
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Is my vette stock?? HAHA
Joined: Oct 2015
Posts: 20,118
Likes: 9,247
From: Im not allowed to tell you
2020 C3 of the Year Finalist - Modified
2020 Corvette of the Year Finalist (performance mods)
2019 C3 of Year Winner (performance mods)
2016 C3 of Year Finalist
Bad ground??? Maybe????
Drifting
Joined: Dec 2004
Posts: 1,714
Likes: 42
From: Austin Texas
Hi,
Did the problem start after you installed the distributor?
Did you replace anything else besides the distributor?
Is the Distributor new and what type is it?
Are your timing settings the same is before the issue started?
Does it die at a particular throttle position or at any position? idle, cruise whatever...
Regards,
John
Did the problem start after you installed the distributor?
Did you replace anything else besides the distributor?
Is the Distributor new and what type is it?
Are your timing settings the same is before the issue started?
Does it die at a particular throttle position or at any position? idle, cruise whatever...
Regards,
John
Drifting
Joined: Aug 2009
Posts: 1,346
Likes: 160
From: new iberia la
Do you have any idea how many new electronic parts fail almost immediately ? It sounds just like a weak Module.. it gets hot, dies.. wait a few minutes, starts right up.. gets hot, dies... Modules are notorious for this problem.. most of us old guys carried a spare in the Glove box.. at least until we threw that garbage out and went to a better system ... Just sayin, don t dismiss it because its new 
..
..
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Thread Starter
Advanced
Joined: Oct 2014
Posts: 81
Likes: 0
Hi,
Did the problem start after you installed the distributor?
Did you replace anything else besides the distributor?
Is the Distributor new and what type is it?
Are your timing settings the same is before the issue started?
Does it die at a particular throttle position or at any position? idle, cruise whatever...
Regards,
John
Did the problem start after you installed the distributor?
Did you replace anything else besides the distributor?
Is the Distributor new and what type is it?
Are your timing settings the same is before the issue started?
Does it die at a particular throttle position or at any position? idle, cruise whatever...
Regards,
John
Thread Starter
Advanced
Joined: Oct 2014
Posts: 81
Likes: 0
[QUOTE=fishslayer143;1592739157]Do you have any idea how many new electronic parts fail almost immediately ? It sounds just like a weak Module.. it gets hot, dies.. wait a few minutes, starts right up.. gets hot, dies... Modules are notorious for this problem.. most of us old guys carried a spare in the Glove box.. at least until we threw that garbage out and went to a better system ... Just sayin, don t dismiss it because its new ..[/QUO
I know what your saying about the module that's why I put a new distributor it... I will swap it out and see I'll let you know Thanks for your time
..[/QUOI know what your saying about the module that's why I put a new distributor it... I will swap it out and see I'll let you know Thanks for your time
Melting Slicks
Joined: Mar 2008
Posts: 2,989
Likes: 198
From: Meriden CT
Hi, I had the problem for awhile started working on it and can't figure it out I put a new distributor in I thought that fix but no.. its odd starts and runs great all kinds of power but cant go past a few miles then it just quits pump the gas and get a little farther and then stops... restart it.. it runs great for another few miles and same thing if you can think of anything let me know... thanks for your time.. John
Drifting
Joined: Dec 2004
Posts: 1,714
Likes: 42
From: Austin Texas
So it dies, you pull over and crank it and it fires right up, all within about 2-3 minutes?
After it dies, does it have to spin over a few times before it fires up? That might indicate it is filling the fuel bowl up.
If I dont drive my car for a week, the fuel will evaporate out of the bowl and I have to turn it over for a few seconds to let the pump fill the bowl again. If you fire it right up, without hitting the gas pedal, it sounds like there was fuel in the bowl.
If the bowl is empty and you hit the pedal, there could be a shot in the accelerator pump to start it and activate the fuel pump to fill the bowl again.
If the distributor is HEI, many parts stores can test them to confirm if it has failed or not.
Keep us informed on this one.
John
After it dies, does it have to spin over a few times before it fires up? That might indicate it is filling the fuel bowl up.
If I dont drive my car for a week, the fuel will evaporate out of the bowl and I have to turn it over for a few seconds to let the pump fill the bowl again. If you fire it right up, without hitting the gas pedal, it sounds like there was fuel in the bowl.
If the bowl is empty and you hit the pedal, there could be a shot in the accelerator pump to start it and activate the fuel pump to fill the bowl again.
If the distributor is HEI, many parts stores can test them to confirm if it has failed or not.
Keep us informed on this one.
John
Last edited by johnt365; Jul 30, 2016 at 04:50 PM.
Team Owner
Joined: Jan 2006
Posts: 37,637
Likes: 3,114
From: Crossville TN
Have you done any work on the fuel pump and rubber fuel lines? If so, that's likely where your problem is. If not, it could be a defective fuel pump. If you replace that 'S' hose going to the pump, it MUST be one of the "formed" S hoses...or it must have an 'anti-collapsing' spring going around it. Using a straight piece of fuel line to substitute for the formed hose will NOT get the job done; it will pinch down in the bent areas and drastically limit fuel flow.
Thread Starter
Advanced
Joined: Oct 2014
Posts: 81
Likes: 0
So it dies, you pull over and crank it and it fires right up, all within about 2-3 minutes?
After it dies, does it have to spin over a few times before it fires up? That might indicate it is filling the fuel bowl up.
If I dont drive my car for a week, the fuel will evaporate out of the bowl and I have to turn it over for a few seconds to let the pump fill the bowl again. If you fire it right up, without hitting the gas pedal, it sounds like there was fuel in the bowl.
If the bowl is empty and you hit the pedal, there could be a shot in the accelerator pump to start it and activate the fuel pump to fill the bowl again.
If the distributor is HEI, many parts stores can test them to confirm if it has failed or not.
Keep us informed on this one.
John
After it dies, does it have to spin over a few times before it fires up? That might indicate it is filling the fuel bowl up.
If I dont drive my car for a week, the fuel will evaporate out of the bowl and I have to turn it over for a few seconds to let the pump fill the bowl again. If you fire it right up, without hitting the gas pedal, it sounds like there was fuel in the bowl.
If the bowl is empty and you hit the pedal, there could be a shot in the accelerator pump to start it and activate the fuel pump to fill the bowl again.
If the distributor is HEI, many parts stores can test them to confirm if it has failed or not.
Keep us informed on this one.
John
Thread Starter
Advanced
Joined: Oct 2014
Posts: 81
Likes: 0
Have you done any work on the fuel pump and rubber fuel lines? If so, that's likely where your problem is. If not, it could be a defective fuel pump. If you replace that 'S' hose going to the pump, it MUST be one of the "formed" S hoses...or it must have an 'anti-collapsing' spring going around it. Using a straight piece of fuel line to substitute for the formed hose will NOT get the job done; it will pinch down in the bent areas and drastically limit fuel flow.
Le Mans Master
Joined: Sep 2003
Posts: 8,812
Likes: 2,029
From: eastern NC
Most of the vendors carry it, but you may be able to find it locally as well.
Good luck... GUSTO
Melting Slicks
Joined: Oct 2012
Posts: 2,156
Likes: 273
From: Dunedin NZ.
When it stops what happens if you remove the fuel filler cap, is there a rush of air into the tank? I have seen an instance where the fuel vent was blocked and it caused an issue like you are having.
Race Director
Joined: Sep 2005
Posts: 18,640
Likes: 121
From: Farragut,TN
