FJ62 Gas Flow Issue

[MessWithTexas]

I posted a while back about an issue I experience with my 1989 FJ62. Whenever the tank get to about 1/4 of a tank, the engine will stutter ONLY when taking right turns. The severity of the issue gets progressively worse as the gas level gets lower. Eventually when the gas get particularly low, the engine will completely stall and require a re-ignition if the right turn is taken quickly enough.

I couldn't find any definitive advice on what to do. In desperation I went ahead and replaced the fuel pump. While the tank was down, the mechanic looked inside and the baffles appeared to be in tact. After replacing the pump the issue persists.

I filled up the 23.8 gallon tank and drove until the first signs of the issue occurred. It is starting with about 6 gallons of gas in the tank. Far too much to be a symptom of a low gas level in my mind.

Assuming that it isn't the baffles or the fuel pump, are there any thoughts out there of next items related to fuel that may be causing the issue?

 

[SteveH]

I presume the pickup tube/sock/device on the end of the fuel pump is sound and intact? Can you jack up the truck on the left side, while it's idling and low on fuel, and re-create this condition? I presume your fuel lines under the truck aren't being pinched by a spring or shock in some weird way?

 

[franklin40]

i have the same problem but only after a diesel swap was done and haven't been able to sort it out yet. have you had any resolution to the problem? funny it's only after turning right for me too!!

 

[Michael Hanson]

Hi, I second the sock and fuel pick up.Start there. Mike