well ill try some things and let u know. if nothing works ill replace the whole canister and see.

 

In case it helps, I did manage to find a parts list and diagram at the link below, though at this point the only idea I've got is throwing parts at the problem until it's fixed, which gets expensive.

FUEL TANK FILLER PIPES & HOSES. Fits: Cobalt, Pursuit | Tonkin Online Parts

 

I'm saying if Ur driving around in Ontario. Say Branford shitsville there isn't much more than pioneers and esso's.

 

When I was filling up yesterday the pump shut off 3 times In the first 20 seconds of pumping. Could just be the pump shooting to hard. Pull the gun out a tad and it won't do that

 

iv tried everything with the pump. mine shuts off every 3 seconds or so

 

My trifecta tune runs good on 91 octane. Sucks your won't. And maybe you should try going to a different gas station for your fuel tank fill-up problem. I see you've said you have tried only 2 places, co-op and husky. Try a PetroCan they have your 94 aswell.

There's a couple gas stations in the GTA where I have to hold the handle at a weird angle and not fully squeeze the trigger, but I figured it out after a few fill-ups.

 

Happens to me at every pump I go to, at every gas station I've been to (Arco, Mobil, United, multiple 76 stations), and I'm lucky if the pump even gets to 5 seconds before it shuts off, even if I gently pull the trigger to "trickle pump". If I pull the nozzle out slightly it doesn't pump at all.

The problem is in the car. It's not the gas station, it's not the gas pumps, and I'm perplexed at how some here have speculated that the gas brand or octane has anything to do with it. I don't think it's the weather either. tomj77 is in Canada with nothing but weather and I'm in SoCal where we don't get weather. :P

 

iv tried 3 stations, like the only 4 we have. we have 2 co op, one shell, and husky in my town. no make that 3 co op. and the superstore gas station, dont know what that is. and there is one new one that i think is also co op. but ill check to see what it is. but trust me its the car. not the pumps.

 

exactly. we get from up to 95 in summer down to -40 in winter, and its always the same no matter what.

 

Tom, you said you replaced the vent solenoid. There's two, one of which is in the engine compartment, one of which is in the back by the gas tank. Which did you replace?

I'm thinking that the problem is (in order of likelihood) with the vapor canister solenoid (AC Delco 214-2230), or the canister itself (GM 19177699 / ACDelco 215-649). The vapor canister also uses a filter (GM 19177702 / AC Delco 215-561). I doubt that the EVAP purge solenoid (located in the engine compartment) is the problem.

 

Soooo... I replaced the vapor canister solenoid behind the gas tank. Went to go fill up, problem persists. Guess I get to throw parts at it until its fixed, starting with the vapor canister itself, followed by the hoses (which aren't frickin' cheap). Next.

 

Pull. The. Nozzle. Out. One. "Notch."

 

At. which. point. it. refuses. to. fill. at. all.

 

from a GM bulletin:

On rare occasions, the gas station fuel nozzle may shut off intermittently or prematurely while filling the fuel tank and/or the SES lamp may be illuminated due to a P0446 DTC. This condition may be caused by a partial restriction of the EVAP canister vent pipe, typically caused by insect nests in the pipe. Since a very sensitive measurement (Inches of H20) is used to monitor the EVAP system pressure/vacuum level, this pipe does not have to be 100% restricted for this concern to occur.

inspect the EVAP canister vent pipe for a partial restriction that may be caused by insect nests, etc. The EVAP pipe in question has one end attached to the EVAP canister (Item # 1 below) and the other end attached near the top of the filler neck. To determine if this is an issue, remove the pipe, hold a shop rag at one end of the pipe, apply shop air to the other end of the pipe, and determine if any debris is collected on the shop rag. If debris is present, this is most likely the root cause of the concern. Depending on how much debris is present, it may be necessary to use pressurized water to remove all of the debris.

 

some more possibilities.

Pre-mature shut-off of the fuel dispensing nozzle occurs immediately after engaging dispensing nozzle, tank empty:

Restricted vapor lines or fuel fill pipe
High fuel temperature
Inlet check valve at tank stuck closed, fill pipe full of fuel
Fuel tank full, gauge not accurate


Pre-mature shut-off of the fuel dispensing nozzle, more than 1/8 of tank capacity dispensed:

Kinked, pinched or plugged lines in fuel tank vent system
EVAP vent valve stuck closed or restricted
EVAP canister restricted
Fuel limiting vent valve stuck closed or obstruction at top of fuel tank

 

I've changed both, no change in issue

 

I'll probably end up changing the whole canister to see if that fixes it. And take old one apart to see how it works

 

Are people talking to you at the gas pump giving you advice while it's clicking off every 3 seconds. THAT would be annoying.

 

No, I don't talk to them, what can they help

 

i had a similar issue, blowing out the vent pipe with some compressed air fixed it. just disconnect it under the car by the gas tank. this was 2/3 yrs ago and the problem never came back.

give it a try, it's free ha

 

nice thanks.

 

Good call! That solved the problem!!!

 

Free fix is the best kind! Love it when it turns out to be simple thing's.

 

I haven't gotten around to doing this yet. I'm sure it is the vent pipe cause when I filled up the other day I listened and the gas backed up all the way to the nossel before it clicked off . So that's what's happening, so it obviously the vent pipe seeig as it wouldn't do that if it was clear

 

When you fill the tank, do you usually "top it off" after it clicks once?