truck is running like crap!! - The 1947 - Present Chevrolet & GMC Truck Message Board Network

thisolechevy · 01-22-2005, 12:32 AM

Hey guys I am in need of dire help!! I was getting my truck ready to drive home from the body shop (whoo-hoo, finally after 2 months) and when the body man moved my truck from the lot into the bay to finish it it cranked right up and sounded great!! then we let it run for a while and shut it off. I had him shave the fuel tank from the cab and I installed a new fuel cell in the bed when the truck was running great this morning I had just run some 5/16" fuel line into the bed and into the filler neck on the old cab-tank. Then I finished installing the fuel cell and plumbed the lines, I then proceeded to pour about 2-gallons of fuel into the fuel cell. After this I poured more fressh fuel into the cell, and cranked the truck and let it run for a couple of minutes. I forgot that I had never connected one of the fuel lines (stupid me) and the truck sputterd to a stop, I connected the lines and now it wont run good at all!!! I checked all lines for kinks and such, cleaned my fuel filter, made sure there was good gas now what? I need help quick

68C15 · 01-22-2005, 12:39 AM

did you shut it off & then it wouldnt start? sounds like water in fuel (carb).
if it was running & then died then check the gas cap. it may need to be vented. Im not sure if I am reading this right, just shooting from the hip.

thisolechevy · 01-22-2005, 12:49 AM

thanks but the fuel cell has a vent I checked and it is free no problems there, and it was running and then it sputtered and died and since then just won't run good.

86SILVERADO · 01-22-2005, 12:55 AM

If you ran it out of gas then it will take a bit for the fuel level in the float bolw to get back to normal. What kind of carb is it?

68C15 · 01-22-2005, 01:07 AM

WATER, thats my theory & I'm sticking to it!

70 shorty · 01-22-2005, 07:41 AM

I second the idea that about it running out of fuel. How about it you pour just a TINY bit of fuel down the carb to give it a prime?

franko72 · 01-22-2005, 11:25 AM

I would try priming the fuel line from the cell to the carb. I have tried this in the past with good results. Disconnect the fuel line at the carb. Have somenone crank the engine while you place your thumb over the end of the fuel line. Apply and remove your thumb like a burping effect till gas reaches the outlet end. Be careful while doing this not to let gas spil onto electrical parts.Disconnect the coil wire from dist. cap and cover it with plastic or foil if you think gas may reach area. I did this on my brothers 77 corvette and it worked .

thisolechevy · 01-22-2005, 11:34 PM

well I have found out that my mechanical fuel pump has gone out and is letting just enough fuel through to crank and run awful. So I went ahead and purchased a electric fuel pump and I will do the conversion tomorrow after church. I will also run all new fuel lines just to be safe (I am a perfectionist and hate for anything to seem out of place) I plan on removing the fuel cell, draining it and reinstalling it with fresh clean gas, then installing the fuel pump and new lines and priming it to the carb. then hopefully it will start and run great. Any other suggestions?

01-22-2005, 12:32 AM	#1
thisolechevy Registered User Join Date: Jun 2004 Location: Gainesville, Fl Posts: 382	truck is running like crap!! Hey guys I am in need of dire help!! I was getting my truck ready to drive home from the body shop (whoo-hoo, finally after 2 months) and when the body man moved my truck from the lot into the bay to finish it it cranked right up and sounded great!! then we let it run for a while and shut it off. I had him shave the fuel tank from the cab and I installed a new fuel cell in the bed when the truck was running great this morning I had just run some 5/16" fuel line into the bed and into the filler neck on the old cab-tank. Then I finished installing the fuel cell and plumbed the lines, I then proceeded to pour about 2-gallons of fuel into the fuel cell. After this I poured more fressh fuel into the cell, and cranked the truck and let it run for a couple of minutes. I forgot that I had never connected one of the fuel lines (stupid me) and the truck sputterd to a stop, I connected the lines and now it wont run good at all!!! I checked all lines for kinks and such, cleaned my fuel filter, made sure there was good gas now what? I need help quick __________________ Man I need another 67-72!!!

01-22-2005, 12:39 AM	#2
68C15 blood type; Retumbo Join Date: Jan 2004 Location: next to my reloading bench Posts: 10,269	did you shut it off & then it wouldnt start? sounds like water in fuel (carb). if it was running & then died then check the gas cap. it may need to be vented. Im not sure if I am reading this right, just shooting from the hip. __________________ Man rule #77...if you own a 67 stepside with a caddy 472 you will never be in danger of loosing you man card

01-22-2005, 12:49 AM	#3
thisolechevy Registered User Join Date: Jun 2004 Location: Gainesville, Fl Posts: 382	thanks but the fuel cell has a vent I checked and it is free no problems there, and it was running and then it sputtered and died and since then just won't run good. __________________ Man I need another 67-72!!!

01-22-2005, 12:55 AM	#4
86SILVERADO Registered User Join Date: Dec 2002 Location: Hills of Western Mass Posts: 626	If you ran it out of gas then it will take a bit for the fuel level in the float bolw to get back to normal. What kind of carb is it? __________________ 86 Silverado C10 back to 305 power! 67 C30 Dually Dump, with 350 transplant, Rockhauler 05 Duramax 3500 "If at first you don't succeed, try a bigger hammer" Member of the 1-Ton club!

01-22-2005, 01:07 AM	#5
68C15 blood type; Retumbo Join Date: Jan 2004 Location: next to my reloading bench Posts: 10,269	WATER, thats my theory & I'm sticking to it! __________________ Man rule #77...if you own a 67 stepside with a caddy 472 you will never be in danger of loosing you man card

01-22-2005, 07:41 AM	#6
70 shorty Where's my beer? Join Date: Oct 2004 Location: Glen Allen, VA Posts: 1,772	I second the idea that about it running out of fuel. How about it you pour just a TINY bit of fuel down the carb to give it a prime? __________________ 70 C10, shortstep, .30 over 250,Hurst shifted 3 spd parts hauler. Holley 390, Clifford Intake, Header, ported cylinder head, unknown bigger cam. 79 Corvette L82, 4 spd, black, red interior, headers, flowmasters, and unkown bigger cam. '03 Grand Cherokee Laredo, 4.0 4x4 daily driver. 165K miles, and runs great '08 Tahoe LTZ 4x4 155K

01-22-2005, 11:25 AM	#7
franko72 Franko72 Join Date: May 2004 Location: Cincinnati,Ohio Posts: 471	I would try priming the fuel line from the cell to the carb. I have tried this in the past with good results. Disconnect the fuel line at the carb. Have somenone crank the engine while you place your thumb over the end of the fuel line. Apply and remove your thumb like a burping effect till gas reaches the outlet end. Be careful while doing this not to let gas spil onto electrical parts.Disconnect the coil wire from dist. cap and cover it with plastic or foil if you think gas may reach area. I did this on my brothers 77 corvette and it worked . __________________ 1972 C20 cheyenne Super 402 BB/400 turbo LWB A/C Tilt, Cruise Control, Saddle tanks, Tach My Home Page Better to burn out than it is to rust

01-22-2005, 11:34 PM	#8
thisolechevy Registered User Join Date: Jun 2004 Location: Gainesville, Fl Posts: 382	well I have found out that my mechanical fuel pump has gone out and is letting just enough fuel through to crank and run awful. So I went ahead and purchased a electric fuel pump and I will do the conversion tomorrow after church. I will also run all new fuel lines just to be safe (I am a perfectionist and hate for anything to seem out of place) I plan on removing the fuel cell, draining it and reinstalling it with fresh clean gas, then installing the fuel pump and new lines and priming it to the carb. then hopefully it will start and run great. Any other suggestions? __________________ Man I need another 67-72!!!

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