Fuel supply problem

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aoist
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Fuel supply problem

Postby aoist » Thu Jun 23, 2022 2:16 pm

My 2002 pathfinder has a peculiar problem , if it is not started within a few days it won't start. I have to pull out the air filter and squirt in some starting fluid to start it. Any clues as to the cause of this?
Clogged fuel filter? Or?
Thanks much
Tom


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VStar650CL
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Re: Fuel supply problem

Postby VStar650CL » Thu Jun 23, 2022 3:58 pm

Probably the filter. I'm pretty sure an '02 won't have a check valve on the fuel pump. On most of the older stuff which has a filter, the check valve is in the filter. If the check is stuck open, the fuel inside the rail will slowly siphon back into the tank.

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aoist
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Re: Fuel supply problem

Postby aoist » Thu Jun 23, 2022 4:21 pm

VStar650CL wrote:
Thu Jun 23, 2022 3:58 pm
Probably the filter. I'm pretty sure an '02 won't have a check valve on the fuel pump. On most of the older stuff which has a filter, the check valve is in the filter. If the check is stuck open, the fuel inside the rail will slowly siphon back into the tank.
I think you are correct, Do you have any idea where the fuel filter is located?

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VStar650CL
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Re: Fuel supply problem

Postby VStar650CL » Thu Jun 23, 2022 4:51 pm

02 Path Fuel Filter.jpg

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aoist
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Re: Fuel supply problem

Postby aoist » Thu Jun 23, 2022 5:01 pm

VStar650CL wrote:
Thu Jun 23, 2022 4:51 pm
02 Path Fuel Filter.jpg
Thanks, cute dog, just watched a movie with one in it, here: https://123series.ru/movie/gone-doggy-gone-lkm/1-full

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aoist
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Re: Fuel supply problem

Postby aoist » Thu Jun 23, 2022 5:39 pm

Where is the fuel line check valve on this car? I don't think it's built into the filter. So if it's not on the top of the fuel pump itself, it must be on the line somewhere.

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palmerwmd
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Re: Fuel supply problem

Postby palmerwmd » Thu Jun 23, 2022 6:29 pm

Sorry to thread hijack.
Tom where in Florida are you at?
I am in the panhandle and me and a buddy where just talking today about starting a Nico/TheNissanPath Chapter here and maybe have a meet.

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VStar650CL
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Re: Fuel supply problem

Postby VStar650CL » Thu Jun 23, 2022 8:17 pm

aoist wrote:
Thu Jun 23, 2022 5:39 pm
Where is the fuel line check valve on this car? I don't think it's built into the filter. So if it's not on the top of the fuel pump itself, it must be on the line somewhere.
If it's not built into the filter then it's probably built into the pump. One other thing you should check, on an '02 you have a Fuel Pressure Regulator. Pull the vacuum line after running the truck and then letting it sit a few minutes. If there's fuel in the line then the diaphragm is leaky and atmospheric pressure is letting the fuel in the rail siphon back to the tank via the return line.

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VStar650CL
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Re: Fuel supply problem

Postby VStar650CL » Thu Jun 23, 2022 8:44 pm

aoist wrote:
Thu Jun 23, 2022 5:01 pm
Thanks, cute dog, just watched a movie with one in it, here: https://123series.ru/movie/gone-doggy-gone-lkm/1-full
Cute flick. Chance went to the Rainbow Bridge last year, we miss him a lot. That's a pet palace he's sitting in on the back of our Kawi Vulcan. Coolest road warrior ever.

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aoist
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Re: Fuel supply problem

Postby aoist » Sun Jun 26, 2022 12:27 pm

Thanks VStar650CL. I think I'm just going to install a check valve as closest to the gas tank as I
possibly can. Maybe a simple $10 remedy, we'll see. Again thanks!


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