Wondering if anyone knows why a new fuel pump might improve gas milage... by a lot?
My '92 FJ80 3FE has been getting 8 mpg for a long time. I replaced the aging fuel pump and sock and now I get 12mpg. I'm not complaining but I can't see how this could logically happen. The truck has 260k miles...
After experiencing regular cruise control failure to engage I seem to have stumbled onto an easy fix. CC would turn on, dash light came on, but it immediately failed when trying to engage. So I removed the CC actuator and opened it up to have a look. It was beautiful inside. No evidence of water...
Odd problem. Did a quick search but didn't get any hits. I replaced the birfields some time ago with the replacement taller drive flanges.
I've gotten considerable buggering of the spindle lead threads due to interference with the drive flange. I cleaned them up and have placed 3 paper gaskets...
Started getting code 21. CEL comes on when cold, but goes out at freeway speed. I measured the primary O2 sensor heater resistance (@ the separated connector) and get 210 ohms. FSM says it should be in the 4 to 6 ohm range. Is this how these suckers fail? I'd have expected an open before an...
Does anyone know why I may be getting significant heat from the rear heater (rear fan switch on) even with the dash temp control cold and no heat coming from the front?
I have checked the valve and the control cable.
Seems odd since the control should shut flow to the front and rear...
Has anyone experienced a momentary loss of oil pressure on a really short stop ('92 FJ80 3FE)? I did today. Never happened before .1/3 qt low on oil. Are there windage baffles in the pan? I'm guessing the pickup is in the rear. ( I can easily check the FSM for that.) Only reason I know is...
Forgive me if this is obvious or has been suggested before but I haven't run across it.
For whatever reason, the spacing between the exhaust pipe and my '92 FJ80 rear cross member was tight enough to bang when driven on my 3/4 mi gravel driveway.
After confirming that the mounting cushions...
Given that getting to the fuel sock to replace it is a little bit of a nusance, do the gurus have any thoughts on replacing the pump preventatively? A Denso is about a hundred bucks on Amazon with the sick so it's not out of the question money wise. I don't have any reason to replace the pump...
Hi all. I'm in the middle of re-installing my cylinder head after a blown head gasket and a head refresh and have a question. After clearing the threads in two bolt holes, I've decided that the tap is too agressive and will revert to less violent ways to clear the rest of the threads . Have any...