need help fuel question! - The 1947 - Present Chevrolet & GMC Truck Message Board Network

ufbugman · 05-01-2015, 05:07 PM

Here's what I have!

1971 C-10 327 with TH400 edlebrock carb 1406 electric fuel pump, tank has been relocated to rear.

It idles fine and seems to drive ok, un-till I stop or slow down to stop it stalls, but will start right back up in a few seconds.
Also have a fuel filter clear type between the fuel pump and carb, that seems to be empty most of the time when I check it.

So bad fuel pump or floats ??????

Userone · 05-01-2015, 05:11 PM

sounds like either of those to me. I'd try floats first because that is free.

cdowns · 05-01-2015, 06:24 PM

why use a crappy electric fuel pump you just love problems they cause?? you got a regulator?

ufbugman · 05-01-2015, 07:13 PM

no regulator

ufbugman · 05-03-2015, 12:14 PM

Well after fooling around with the carb and fuel pump, I gave up , cleaned up and had dinner. Then got to thinking the wife had a olds cutlass that did the same thing, and it was the what you call it on the tranny, so went on to youtube and find some info on the TH400 and found it down shifts by vacumn.

went out this morning and checked the vacumn line on the tranny sure enuff was half falling off, so cut it back and a clamp and truck runs better and does not stall at a stop.

sometimes you just have to relax and think.

05-01-2015, 05:07 PM	#1
ufbugman Registered User Join Date: Apr 2013 Location: High springs Florida Posts: 174	need help fuel question! Here's what I have! 1971 C-10 327 with TH400 edlebrock carb 1406 electric fuel pump, tank has been relocated to rear. It idles fine and seems to drive ok, un-till I stop or slow down to stop it stalls, but will start right back up in a few seconds. Also have a fuel filter clear type between the fuel pump and carb, that seems to be empty most of the time when I check it. So bad fuel pump or floats ??????

05-01-2015, 05:11 PM	#2
Userone Registered User Join Date: Nov 2013 Location: White Hall, AR Posts: 72	Re: need help fuel question! sounds like either of those to me. I'd try floats first because that is free.

05-01-2015, 06:24 PM	#3
cdowns Senior Member Join Date: Jan 2003 Location: daytonabeach Posts: 22,956	Re: need help fuel question! why use a crappy electric fuel pump you just love problems they cause?? you got a regulator? __________________ 71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY

05-01-2015, 07:13 PM	#4
ufbugman Registered User Join Date: Apr 2013 Location: High springs Florida Posts: 174	Re: need help fuel question! no regulator

05-03-2015, 12:14 PM	#5
ufbugman Registered User Join Date: Apr 2013 Location: High springs Florida Posts: 174	Re: need help fuel question! was not fuel updated Well after fooling around with the carb and fuel pump, I gave up , cleaned up and had dinner. Then got to thinking the wife had a olds cutlass that did the same thing, and it was the what you call it on the tranny, so went on to youtube and find some info on the TH400 and found it down shifts by vacumn. went out this morning and checked the vacumn line on the tranny sure enuff was half falling off, so cut it back and a clamp and truck runs better and does not stall at a stop. sometimes you just have to relax and think.



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