Posted: 7/19/2012 8:58:16 PM EDT
| So my friend wants to drop the tank on his 05 Suburban, and asked if I would help. I said I would, but would rather figure out the problem and see if we can figure it out without dropping the tank. The problem is when he goes to add gas, it takes forever to fill, and kicks the pump off constantly (the handle you click under so you don't have to hold the handle the entire time). He said he replaced the solenoid that pressurize and un-pressurize the fuel system. He said it didn't solve the problem, and he has had the problem for a few years now, and is just getting around to fixing it. |
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Maybe a clogged vent, or something obstructing the neck? Or a problem with the ORVR valve/canister if you overfill a lot at the gas station. If you do end up dropping the tank, you might want to suggest he replace the fuel pump. It's a known issue, and they're likely to die around 100K miles. You have to drop the tank to replace it, so some preventive maintenance might save him some headaches in the future. Mine soldiered on til 115K before crapping out. I'm at 170K now, and the pump is starting to whine again - I figure 12 months or less and this one will die. |
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Does he usually top off his tank? Not sure. What could that have done and how do I check it? Overfilling the tank can ruin the charcoal canister which is part of the vapor recovery system. When the canisters get soaked with gas they can clog vent lines and potentially cause problems like this. If this is the case the canister would need to be replaced and all the lines checked for obstructions. |
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Quoted: Quoted: Quoted: Does he usually top off his tank? Not sure. What could that have done and how do I check it? Overfilling the tank can ruin the charcoal canister which is part of the vapor recovery system. When the canisters get soaked with gas they can clog vent lines and potentially cause problems like this. If this is the case the canister would need to be replaced and all the lines checked for obstructions. So I'm guessing the charcoal canister is located near the tank? My 90 Suburban has it located at the front of the engine compartment. Is there a way to test the charcoal canister? |
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Does he usually top off his tank? Not sure. What could that have done and how do I check it? Overfilling the tank can ruin the charcoal canister which is part of the vapor recovery system. When the canisters get soaked with gas they can clog vent lines and potentially cause problems like this. If this is the case the canister would need to be replaced and all the lines checked for obstructions. So I'm guessing the charcoal canister is located near the tank? My 90 Suburban has it located at the front of the engine compartment. Is there a way to test the charcoal canister? I have never done one and I dont know where it is on that car, but I would check by disconnecting the lines to and from the canister at both ends and gently blow some compressed air through the lines. If the lines are clogged with bits of black crud then that may point to a bad canister. |