I have a fj80 and yesterday while driving to sierra mountains it started having a hiccup it seemed like it wasn’t getting gas so I pulled over and turned the car off, when I turned it back on it was fine for 20 miles and it did it again and eventually it just wouldn’t get any gas and it would keep stuttering, I stopped and replaced the fuel pump as I had a replacement in the car with me, I turned on the car it was fine but then all of a sudden it started doing it again. I am not sure what the reason could be and if any of you guys can help me it would be appreciated.
Land Cruiser hiccups in drive smooth in idle
- Thread starter 91cruiserrr
- Start date
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Replace your fuel filter.
- Thread starter
- #3
I put this fuel filter like 500 miles ago, you think it’s faulty ?
Oh ok. Your post stated you replaced your fuel pump only
- Thread starter
- #5
Oh yes, I replaced the fuel pump yesterday when it happened, but that you filter was changed about 2000 miles ago to be exact,
I looked it up on AutoZone. They go about $20. So I think I’ll do it just to be Safe
I looked it up on AutoZone. They go about $20. So I think I’ll do it just to be Safe
I had a similar issue after I dropped my gas cap... vent maybe?
- Thread starter
- #7
How did you go about fixing the issue?
I haven't 
Shortly after, the engine kinda quit and I haven't gotten to repairing it.
Shortly after, the engine kinda quit and I haven't gotten to repairing it.
If your charcoal canister is clogged up, the tank will pull negative pressure as altitude increases and temperature drops.
If you're getting positive or negative pressure when opening the fuel filler cap, then deal with the canister before you wind up cracking the tank.
- Thread starter
- #10
I do get the pressure every time I open up fuel cap i’m so that sounds like my charcoal canister is clogged up
- Thread starter
- #11
Update, ever since this issue has been happening there is no hissing when I open my fuel cap
Have you checked for cracks/splits in the rubber intake plenum?
Loose oil filler cap?
The top half of the 3FE wants to be air tight. Any unmetered air entering the system will play havoc with the A/F ratio.
Are you getting any error codes?
Also, please provide some maintenance history.
When was the last full tune up? Did you use OEM parts?
When was the last valve adjustment?
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