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07-13-2011, 03:03 PM
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#1 |
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Registered User
Join Date: Feb 2008
Location: Surprise, Ariz.
Posts: 186
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engine gas line 73gmc
Hi all, the truck has been sitting for about 1 1/2 yrs. I added to the gas tank a stabilizer addative and fuel restorer. When i crank the engine it seems the fuel line is clogged not getting any gas to the carb. If i add gas to carb the engine runs a little. please advise Frank 73oldie
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07-13-2011, 09:28 PM
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#2 |
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Registered User
Join Date: Jun 2011
Location: Atlanta ga
Posts: 150
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Re: engine gas line 73gmc
You could always pull the fuel line from the pump and blow air down the line. If you hear the gas bubbling in the tank, then the line should be clear. If any of your lines are dry rotted or torn, the lines could be allowing air to enter the line and causing the pump to lose its prime.
I recently installed a new tank, and it took a more than few attempts to get the fuel back up the line to the carb. I finally used a trick; I poured a little gas directly in the carb vent tube, and after a couple of starts the gas was flowing again. good luck
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1984 C20, 454, 4 speed named "Gold Member" |
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07-13-2011, 11:29 PM
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#3 |
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78K & 79C Jimmys
Join Date: Nov 2009
Location: Ottawa Ont CANADA
Posts: 7,901
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Re: engine gas line 73gmc
can always rule some things out by using a temp line to a can of gas
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John 1978 GMCJimmy4X4-350/203 1979 GMCJimmy4X2-305/350 |
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07-14-2011, 01:00 AM
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#4 |
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Chevys Kick A$$
Join Date: Jan 2005
Location: Zootown, MT
Posts: 12,699
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Re: engine gas line 73gmc
Yea I would try blowing air back into the tank and see if you can hear it bubble. Be careful that its not to much so you don't blow your sock off your sending unit though. The carb vent trick to fill the float bowls up should also help you out to get it started!
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*HOODS is what I answer too* -'79, '77, '88 Pickup Sold, '85 Camaro, '83 T/A, '81,'83,'90 K5 Blazer All Sold  -'79 3/4 ton "Big Yellow Bananna" Lifted 4spd. 39.5 TSL Swampers, The money Pit   -'86 K5 Blazer Silverado 6.2 4" lift 35"s -'95 Ext. Cab Shorty 4" Tuff Country rolling 35" M/T's -'83 Monte Carlo T-Tops. 126,500 Original Miles -LATER  I would rather push a Chevy then drive a ford!!
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07-16-2011, 03:09 PM
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#5 |
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Registered User
Join Date: Feb 2008
Location: Surprise, Ariz.
Posts: 186
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Re: engine gas line 73gmc
Hi Hoods, forced air in the fuel line and the tank had bubbles, the line is fine. Am getting gas to the carb. I also tried a can of gas method and the pump worked fine. Thanks for the help Frank
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07-16-2011, 10:35 PM
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#6 |
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Chevys Kick A$$
Join Date: Jan 2005
Location: Zootown, MT
Posts: 12,699
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Re: engine gas line 73gmc
Hey yea no problem glad to help anytime just glad that you got it fixed and can go out and enjoy it now.
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*HOODS is what I answer too* -'79, '77, '88 Pickup Sold, '85 Camaro, '83 T/A, '81,'83,'90 K5 Blazer All Sold -'79 3/4 ton "Big Yellow Bananna" Lifted 4spd. 39.5 TSL Swampers, The money Pit -'86 K5 Blazer Silverado 6.2 4" lift 35"s -'95 Ext. Cab Shorty 4" Tuff Country rolling 35" M/T's -'83 Monte Carlo T-Tops. 126,500 Original Miles -LATER I would rather push a Chevy then drive a ford!!
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