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GMC Yukon XL 5.3 Won't take gasoline without cutting off…

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GMC Yukon XL 5.3...
GMC Yukon XL 5.3 Won't take gasoline without cutting off after about .5 gallons. Changed out the purge vent valve under the hood and the vacuum solenoid canister next to the charcoal canister. Codes are now off, but the gas pump still shuts off prematurely while filling with fuel.
Submitted: 10 months ago.Category: Chevy
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Answered in 6 minutes by:
9/21/2017
Chevy Mechanic: david craig, Auto Mechanic replied 10 months ago
david craig
david craig, Auto Mechanic
Category: Chevy
Satisfied Customers: 5,993
Experience: owner/mechanic at 3D Automotive
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Hi Im David, thanks for visiting the site. what year please

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Customer reply replied 10 months ago
2005 GMC Yukon XL 5.3
Chevy Mechanic: david craig, Auto Mechanic replied 10 months ago

thanks

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Customer reply replied 10 months ago
Got any suggestions
Chevy Mechanic: david craig, Auto Mechanic replied 10 months ago

sorry for the delay. I had to close up my shop.

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Chevy Mechanic: david craig, Auto Mechanic replied 10 months ago

have you tried other gas stations ?

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Customer reply replied 10 months ago
Not yet. Does the line that comes from the vacuum solenoid canister go up to the engine vacuum purge valve. If so I may have to get my air compressor and blow it out. Could the charcoal canister be bad?
Chevy Mechanic: david craig, Auto Mechanic replied 10 months ago

the charcoal canister may be saturated. butt heres a tsb on this condition.

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Chevy Mechanic: david craig, Auto Mechanic replied 10 months ago

if there was a problem with a vent valve or a purge valve or the shutoff valve there would usually be a fault code associated with those.

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Chevy Mechanic: david craig, Auto Mechanic replied 10 months ago

try another gas station

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Customer reply replied 10 months ago
Tried another station today. Same problem. Pump clicks off after less than 1/2 gallon put in.
Chevy Mechanic: david craig, Auto Mechanic replied 10 months ago

ok. standby

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Chevy Mechanic: david craig, Auto Mechanic replied 10 months ago

its got to be the vent tube clogged up

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Customer reply replied 10 months ago
Well, I fixed my problem. I removed the carbon canister and carbon granules began to fall out of it. They were also in the line. I dropped the tank and found the vent lines were clogged up with carbon granules. I blew them out. They were full. While I had the tank down, I changed the fuel pump as the car has 160,000 miles on it. Everything works perfect now. Thanks for you help.
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