carb problems

F150on40's · 10-15-2004, 05:14 PM

No one ever answered my last thread, but i thought i would try again. I am having problems with my truck when i am off-roading. It seems to only happen when i have been idling for a long period of time. The engine starts to putter out and it seems like it is getting fludded. I am just wondering if this has ever happened to anyone else and what did you do? And if anyone has any clue what is going wrong? This is a new holly 600 cfm carb on a fully rebuilt 351w. Thanks for your help.

Jsin · 12-13-2004, 12:24 AM

You may be getting vapor lock. The fuel line may be getting really hot and vaporizing the gas before it can be used as it should. Check the routing of the fuel line and make sure it's not near anything producing excessive heat.

Ford4x4Chik27 · 12-13-2004, 10:31 AM

Good point Jsin

It happens to me sometimes and I even have EFI. I've been told that vapor lock could be my problem too...check it out F150

dt466s · 01-05-2005, 07:52 PM

did you ever think about the carb loading up? it's like stalling for time in a race. you burn your tires while your competion sits and waits for you to get ready to race. he loads up from idling and falls flat on his face when the light turns green. you get the jump on them.

10-15-2004, 05:14 PM	#1
F150on40's Full Member Join Date: Oct 2004 Location: livonia, MI Posts: 15	carb problems No one ever answered my last thread, but i thought i would try again. I am having problems with my truck when i am off-roading. It seems to only happen when i have been idling for a long period of time. The engine starts to putter out and it seems like it is getting fludded. I am just wondering if this has ever happened to anyone else and what did you do? And if anyone has any clue what is going wrong? This is a new holly 600 cfm carb on a fully rebuilt 351w. Thanks for your help. __________________ 83 F150 11inch lift on 39.5 super swamer TSL's,rebuilt 351w,4.88 gears, locker. Check out my ride to see what else i did to it. http://members.cardomain.com/1508504 Last edited by F150on40's; 10-15-2004 at 11:01 PM.

12-13-2004, 10:31 AM	#3
Ford4x4Chik27 Senior Member Join Date: Sep 2004 Location: Sac-Town, Cali Posts: 1,585	Good point Jsin It happens to me sometimes and I even have EFI. I've been told that vapor lock could be my problem too...check it out F150 __________________ '93 Isuzu Amigo, Toyota Axles/Tcase/Drivelines, 35" MTR's '01 Pathfinder, making a huge effort to keep it stock, since it's my DD

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12-13-2004, 12:24 AM	#2
Jsin Junior Member Join Date: Dec 2004 Location: SW Iowa Posts: 4	You may be getting vapor lock. The fuel line may be getting really hot and vaporizing the gas before it can be used as it should. Check the routing of the fuel line and make sure it's not near anything producing excessive heat.

01-05-2005, 07:52 PM	#4
dt466s Junior Member Join Date: Jan 2005 Posts: 1	did you ever think about the carb loading up? it's like stalling for time in a race. you burn your tires while your competion sits and waits for you to get ready to race. he loads up from idling and falls flat on his face when the light turns green. you get the jump on them.