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Old 03-05-2017, 08:03 AM
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kurtnkegger kurtnkegger is offline
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Default FJ40 shuts down turning left

That's right...just like the thread title says...

Randomly my 40 will shut down in a left hand turn. It's like I turned the key off. No stumble, no choking, just dies. Sometimes, I can turn the steering wheel straight, mash down on the gas and get her to start up again, but usually have to pull over crank, and crank because it floods out. Plume of black smoke, raw gas smell...

Yesterday, I was driving, and happened quite a bit, so thought I would post up and see if anyone had insight where to look. I think electrical...I can jiggle the key and she still runs, so not quite sure it's the ignition switch. Wires appear to be in good shape, and not grounding out on anything. There is a random red wire with a black stripe hanging but appears to be for the "dome light" if there ever was one. Grounds look good, clean and tight.

If I'm sitting still, and turn the steering wheel left, and right it runs fine.

Anyway, hoping I can get some direction from some of you all.

Thanks
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Old 03-05-2017, 08:09 AM
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Check your ground wire. My 40 would do that after I had the new engine installed. The bolt on the wire was loose. Make sure you have a good connection
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Old 03-05-2017, 12:16 PM
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Thanks for your reply, Ken. It got me thinking about the actual placement of my ground cables.

When I rebuilt my engine, and reassembled everything, the engine ground actually was on the rear motor mount bolt on the passenger side. I put it back there, but thought it was kind of an odd place for a ground...So here's my thinking...When I'm taking off, and turning left, the engine flexes on the mounts, and I get a temporary disconnection, and it shuts off.

I switched the placement from the motor mount bolt to the clutch slave mount. I figure it's a better "solid" attachment point, I moved the mounting position to the tub as well, being it was from the motor mount to the under side of the step.

I took her for a little drive, and had no issues, but it's a intermittent thing anyway. I'll post back after a while with results...

In the mean time, if anyone has more ideas, I'm all ears.
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Old 03-05-2017, 02:25 PM
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I use a bolt on the block for my ground point
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Old 03-05-2017, 02:52 PM
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This is a known issue. It has to do with the carburetor and EGR system I believe. Mud has some info. I'll try to find more because I don't remember at the moment
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Old 03-05-2017, 07:01 PM
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I opened up the carburetor, and adjusted the float. I originally thought it might be flooding to death, and figured I an adjustment would help.
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Old 03-05-2017, 08:33 PM
SteveH SteveH is offline
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Kurt - did it help?
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Old 03-05-2017, 08:42 PM
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Steve, the float adjustment didn't do a thing...I drove around a bit today after the ground cables were replaced, and mount points moved...She didn't fault, but I'm still a little reluctant to say it worked since it's an intermittent problem anyway. After yesterday (Just about every left turn was effected) it does look promising.
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Old 03-06-2017, 05:36 AM
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You might also check the motor mounts. A simple left turn shouldn't make the engine shift much but if the driver side mount is cracked it might let the engine move far enough to tug on a wire.
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Old 03-06-2017, 06:30 AM
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Is your EGR tube capped? When you adjusted the float did you lower it?
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1996 FZJ80 1FZ-FE factory lockers + Safari intercooled turbo, CDL switch, cup holder, Metric TLC leather, heated seats, JDM switches, PUMA OBA. Warn M12000 waiting for a bumper.
2000 Tundra Limited TRD 2UZ-FE SOLD
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