StealthGTI
Autocross Champion
- Location
- Newport News, VA
- Car(s)
- 2017 GTI Sport
Hello!
I have a question about the suction pump. I think I understand that its primary purpose is to remove fuel from the evap canister and move it to the tank. I suspect that it cannot do that if one "tops off" the tank or "fills it to the brim." I think the pump is intended to address minor over-fills. The recall appears to be to replace potentially faulty pumps or seals. I hope to have the recall done soon; I need to remove some equipment from the car first. Until then, I have a question:
What happens when the pump fails? Does the canister flood and then result in a non-start condition? Does it behave a bit like "vapor lock?" Old-timers may recall that term; I haven't heard it in a while. Anyway, I have an intermittent no-start condition. It hasn't left me stranded (yet) since the car usually starts after a few attempts. I think I've determined that over-fueling may be the cause in my case. I learned years ago to stop fueling when the fuel dispenser clicks OFF the first time. I used to bump another 1/2 gallon into the tank. But I stopped when I considered that it may be causing my no-start issues. No-starts have been rare until this morning.
I had a fuel dispenser that was running just a little slow. It shut off automatically, but it may have been a little late. The car started fine, but I got stuck for about 15 minutes after my second stop. Once I got the car started, I drove about 50 miles to drain the tank down a bit. I burned less than 1/4-tank in those 50 miles, which shouldn't have happened with my current rooftop load. So, I think I was over-fueled.
Here's a video that I shot before burning off the extra fuel; it shows the no-start and slow start. Wear headphones to hear the engine:
What do you think? This post shares a little more detail than the video since I learned a few things after burning some fuel. The car started normally after the burn-off. Could the suction pump be a culprit? Or is this purely an over-fueling issue, faulty fuel station pump in this case? It would be nice if the recall prevented this from happening again, but I understand that's wishful thinking.
I appreciate your input.
Cheers!
PS: My rooftop load, which nets about 25 mpg...
I have a question about the suction pump. I think I understand that its primary purpose is to remove fuel from the evap canister and move it to the tank. I suspect that it cannot do that if one "tops off" the tank or "fills it to the brim." I think the pump is intended to address minor over-fills. The recall appears to be to replace potentially faulty pumps or seals. I hope to have the recall done soon; I need to remove some equipment from the car first. Until then, I have a question:
What happens when the pump fails? Does the canister flood and then result in a non-start condition? Does it behave a bit like "vapor lock?" Old-timers may recall that term; I haven't heard it in a while. Anyway, I have an intermittent no-start condition. It hasn't left me stranded (yet) since the car usually starts after a few attempts. I think I've determined that over-fueling may be the cause in my case. I learned years ago to stop fueling when the fuel dispenser clicks OFF the first time. I used to bump another 1/2 gallon into the tank. But I stopped when I considered that it may be causing my no-start issues. No-starts have been rare until this morning.
I had a fuel dispenser that was running just a little slow. It shut off automatically, but it may have been a little late. The car started fine, but I got stuck for about 15 minutes after my second stop. Once I got the car started, I drove about 50 miles to drain the tank down a bit. I burned less than 1/4-tank in those 50 miles, which shouldn't have happened with my current rooftop load. So, I think I was over-fueled.
Here's a video that I shot before burning off the extra fuel; it shows the no-start and slow start. Wear headphones to hear the engine:
What do you think? This post shares a little more detail than the video since I learned a few things after burning some fuel. The car started normally after the burn-off. Could the suction pump be a culprit? Or is this purely an over-fueling issue, faulty fuel station pump in this case? It would be nice if the recall prevented this from happening again, but I understand that's wishful thinking.
I appreciate your input.
Cheers!
PS: My rooftop load, which nets about 25 mpg...