fuel pump problem? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Suicide-D · 08-12-2002, 07:42 PM

well today on the way home the truck did a curious thing. I was going something like 30 mph and the engine starts stumbling like it is running out of fuel and dies I throw it in neutral and it cranks right back up. I stop and put 10 gallons in thinking maybe the fuel guage doesn't work.....nope still does the same scenario...as long as it's idling or under very little accelration it runs but a little rough.

Do you think the pump diaphram has stretched out and is not putting out enough pressure to run just idle? I checked the oil and there's no gas smell to it and the pump is not leaking externally.

This is more of the post sitting not driving break in woes this truck is going through. I have probably driven it more in the last week than it was driven for three years I bet.

I drove it 7 or 8 miles doing this... and it ran fine this morning on the way to work...could it be bad gas is finally getting to it? I would've thought I had burned it all by now.

any ideas?

Longhorn Man · 08-12-2002, 07:53 PM

I'm sure your fuel filter is new...but I would chainge it anyways.
I got one of them glas ones on mine so I can see how much rust she is sucking up.

mooneyes · 08-12-2002, 08:04 PM

i had the same prob when i 1st got my truck out ended up the small bag filter in the tank either fell off or was never there so i was sucking up all the dirt from the bottom of the tank..went through 3 filters before i decided to look in there

Suicide-D · 08-12-2002, 08:42 PM

I will be changing my name on this board... You can find me posting under the name "DUMBA$$" cause thats what I feel like. I pulled the filter off and poured out the cause of my dilemma... it was clogged so bad I could've made a kid's sand box out of all that stuff...when I did my tune up I neglected to change it cause "it looks new..." well now I have an extra... if I go through a few I will check out the tank...i put a clear plastic fram one on there... it'll do for now. I also looked up the fuel pump on that truck cause no one seemed to be able to find it...took me 30 seconds in the book...hard to find good parts people these days...
but us dumba$$es are plentiful....

mooneyes · 08-12-2002, 08:56 PM

i went through 3 before looking in the tank..so ill join ya on the dumb ass name..

mooneyes · 08-12-2002, 08:59 PM

oh yea..by the way your avatar rules..clay smith cams mr. horsepower bird kicks ass!!!!

Suicide-D · 08-12-2002, 09:01 PM

thanks...

my next engine I want to get a cam from them. I have stickers for my vent windows and I even bought the t-shirt

mooneyes · 08-12-2002, 09:05 PM

did you see the new shirt and sticker with "horsepower with atitude" ?..

Suicide-D · 08-12-2002, 09:20 PM

yeah I saw that one too... I just liked this one better

Longhorn Man · 08-12-2002, 10:21 PM

With the posability of rust and crap in the tank, i would rather not have that little sock on the pick up in the tank.
External fuel filters are a whole lot easier to chainge than the in tank deal.

08-12-2002, 07:42 PM	#1
Suicide-D Registered User Join Date: Jan 2001 Location: Katy, TX...but the love of my life resides in Dublin,OH. Posts: 1,408	fuel pump problem? well today on the way home the truck did a curious thing. I was going something like 30 mph and the engine starts stumbling like it is running out of fuel and dies I throw it in neutral and it cranks right back up. I stop and put 10 gallons in thinking maybe the fuel guage doesn't work.....nope still does the same scenario...as long as it's idling or under very little accelration it runs but a little rough. Do you think the pump diaphram has stretched out and is not putting out enough pressure to run just idle? I checked the oil and there's no gas smell to it and the pump is not leaking externally. This is more of the post sitting not driving break in woes this truck is going through. I have probably driven it more in the last week than it was driven for three years I bet. I drove it 7 or 8 miles doing this... and it ran fine this morning on the way to work...could it be bad gas is finally getting to it? I would've thought I had burned it all by now. any ideas?

08-12-2002, 08:04 PM	#3
mooneyes Registered User Join Date: Jan 2002 Location: Slippery Rock PA USA Posts: 1,692	i had the same prob when i 1st got my truck out ended up the small bag filter in the tank either fell off or was never there so i was sucking up all the dirt from the bottom of the tank..went through 3 filters before i decided to look in there __________________ Ken Lyons, Slippery rock pa 68 short step 327 t10 4 gear 72 2wd blazer project 70 lwb 305/700r driver 78 caprice project 02 cavalier D.D ( hate it!!)

08-12-2002, 08:42 PM	#4
Suicide-D Registered User Join Date: Jan 2001 Location: Katy, TX...but the love of my life resides in Dublin,OH. Posts: 1,408	ummm .... I will be changing my name on this board... You can find me posting under the name "DUMBA$$" cause thats what I feel like. I pulled the filter off and poured out the cause of my dilemma... it was clogged so bad I could've made a kid's sand box out of all that stuff...when I did my tune up I neglected to change it cause "it looks new..." well now I have an extra... if I go through a few I will check out the tank...i put a clear plastic fram one on there... it'll do for now. I also looked up the fuel pump on that truck cause no one seemed to be able to find it...took me 30 seconds in the book...hard to find good parts people these days... but us dumba$$es are plentiful....

08-12-2002, 08:56 PM	#5
mooneyes Registered User Join Date: Jan 2002 Location: Slippery Rock PA USA Posts: 1,692	i went through 3 before looking in the tank..so ill join ya on the dumb ass name.. __________________ Ken Lyons, Slippery rock pa 68 short step 327 t10 4 gear 72 2wd blazer project 70 lwb 305/700r driver 78 caprice project 02 cavalier D.D ( hate it!!)

08-12-2002, 08:59 PM	#6
mooneyes Registered User Join Date: Jan 2002 Location: Slippery Rock PA USA Posts: 1,692	oh yea..by the way your avatar rules..clay smith cams mr. horsepower bird kicks ass!!!! __________________ Ken Lyons, Slippery rock pa 68 short step 327 t10 4 gear 72 2wd blazer project 70 lwb 305/700r driver 78 caprice project 02 cavalier D.D ( hate it!!)

08-12-2002, 07:53 PM	#2
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,693	I'm sure your fuel filter is new...but I would chainge it anyways. I got one of them glas ones on mine so I can see how much rust she is sucking up.

08-12-2002, 09:01 PM	#7
Suicide-D Registered User Join Date: Jan 2001 Location: Katy, TX...but the love of my life resides in Dublin,OH. Posts: 1,408	thanks... my next engine I want to get a cam from them. I have stickers for my vent windows and I even bought the t-shirt

08-12-2002, 09:05 PM	#8
mooneyes Registered User Join Date: Jan 2002 Location: Slippery Rock PA USA Posts: 1,692	did you see the new shirt and sticker with "horsepower with atitude" ?.. __________________ Ken Lyons, Slippery rock pa 68 short step 327 t10 4 gear 72 2wd blazer project 70 lwb 305/700r driver 78 caprice project 02 cavalier D.D ( hate it!!)

08-12-2002, 09:20 PM	#9
Suicide-D Registered User Join Date: Jan 2001 Location: Katy, TX...but the love of my life resides in Dublin,OH. Posts: 1,408	yeah I saw that one too... I just liked this one better

08-12-2002, 10:21 PM	#10
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,693	With the posability of rust and crap in the tank, i would rather not have that little sock on the pick up in the tank. External fuel filters are a whole lot easier to chainge than the in tank deal.



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