So here’s the issue, and why I think it could be ignition related. The problem I’m having is it’s done it twice now, both times at stop lights in traffic, and I can’t duplicate it idling in the garage for correct diagnosis. Hoping someone will chime in and be like “oh ya, mine was doing exactly the same thing, here’s what my issue was…”.
83 FJ60 2F, factory carb, smog intact. 130k.
I’ve owned the truck for 4 years. 97.5% of the time I’ve owned it it’s run flawlessly. After 15-20 minutes of 50-60mph driving, I’ll come to a stop light. It doesn’t die while slowing down, or even when I first stop. But at some point while I’m waiting on the light, it’ll die…sort of. It will just essentially start dieseling. Throttle input does absolutely nothing, shutting the key off does nothing. It’ll continue to diesel. I’ll put it in 4th and let the clutch out to kill it. It will restart right away and may run perfectly or may just just do the weird diesel limbo thing. I popped the hood (at the intersection), disconnected and reconnected the fuel cut solenoid, disconnected and reconnected the igniter connector, and made sure the distributor connector hadn’t come loose. Fired right up and drives completely normal. Several drives later and it’s running fine without a single issue. Then, same deal. Cruising along and come to a light, boom, dieseling with no response to throttle. Hop out at an intersection and make the same checks. Fires up and is fine.
I’ve tried disconnecting things in the garage to duplicate a similar response. Disconnecting the fuel cut solenoid will make it idle like garbage, but it will respond to throttle input and rev normally. I took the coil and ignitor off and will bench test them at work. Fuel filter is a year old, fuel pump (oem) is 2 years old. Cap, rotor, and plugs (OEM) are 2 years old. Base timing is set to about 10° BTDC.
I’ve pulled the primary and secondary main and slow jets out to verify no restrictions. Accelerator pump works normally. EGR is bypassed. I have approx 18Hg of vacuum at idle (sea level). The ONLY thing I’ve done to even remotely duplicate the issue is disconnect the igniter connector in the garage. It will die, kinda diesel a bit and fizzle out, much faster than it does while it’s actually acting up. Anyone have any suggestions or ideas on what would cause that?
Edit: I have a sniper on order from Mosley Motors but they’re back ordered until mid august-ish. Plus if it’s ignition related, fuel injection isn’t going to fix it anyways.
83 FJ60 2F, factory carb, smog intact. 130k.
I’ve owned the truck for 4 years. 97.5% of the time I’ve owned it it’s run flawlessly. After 15-20 minutes of 50-60mph driving, I’ll come to a stop light. It doesn’t die while slowing down, or even when I first stop. But at some point while I’m waiting on the light, it’ll die…sort of. It will just essentially start dieseling. Throttle input does absolutely nothing, shutting the key off does nothing. It’ll continue to diesel. I’ll put it in 4th and let the clutch out to kill it. It will restart right away and may run perfectly or may just just do the weird diesel limbo thing. I popped the hood (at the intersection), disconnected and reconnected the fuel cut solenoid, disconnected and reconnected the igniter connector, and made sure the distributor connector hadn’t come loose. Fired right up and drives completely normal. Several drives later and it’s running fine without a single issue. Then, same deal. Cruising along and come to a light, boom, dieseling with no response to throttle. Hop out at an intersection and make the same checks. Fires up and is fine.
I’ve tried disconnecting things in the garage to duplicate a similar response. Disconnecting the fuel cut solenoid will make it idle like garbage, but it will respond to throttle input and rev normally. I took the coil and ignitor off and will bench test them at work. Fuel filter is a year old, fuel pump (oem) is 2 years old. Cap, rotor, and plugs (OEM) are 2 years old. Base timing is set to about 10° BTDC.
I’ve pulled the primary and secondary main and slow jets out to verify no restrictions. Accelerator pump works normally. EGR is bypassed. I have approx 18Hg of vacuum at idle (sea level). The ONLY thing I’ve done to even remotely duplicate the issue is disconnect the igniter connector in the garage. It will die, kinda diesel a bit and fizzle out, much faster than it does while it’s actually acting up. Anyone have any suggestions or ideas on what would cause that?
Edit: I have a sniper on order from Mosley Motors but they’re back ordered until mid august-ish. Plus if it’s ignition related, fuel injection isn’t going to fix it anyways.
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