Hello 3FE owners, I bought a completely stock 1992 FJ80 with 181k miles 6 months ago and have been baselining (new fluids, plugs, rotor, wires, etc) and doing the FSM tune up. Engine is running ok now but not perfectly smooth, there is still a lot of stuff on the PM list (O2 sensors, radiator hoses, FPR, FPD, new battery cable, etc.)
I recently posted a 3FE video on youtube, It’s a sound comparison before and after the valve adjustment, I think it might interest you:
Engine problems encountered and solved:
Engine misfiring heavily above 1200RPM----Solution: dizzy was off one tooth, timing was completely off (adjusted as per fsm)
Truck would crank but no start (NO CEL)----Solution: New fusible links needed
Wobbly PS pulley and jumping belt(non OEM)----Solution: new OEM belt, new OEM pulley, rebuilt pump with new shaft (stills wobbles very slightly, going to keep looking, might be THE bushing inside the PS pump, although no leaks yet).
Rough Idle (90% solved)----Solution: replaced cracked intake tubes, new vacuum lines.
Would take a LONG time for truck to warm up-----Solution: replaced cracked thermostat and temp sensor (BTW use PB blaster on the housing bolts, bolt broke and total PITA to remove the other half.)
I only found 1 thread on rebuilding the 3FE ps pump, if anyone is interested, I could post some pictures.
I wish to thank everyone who has posted 3FE stuff here in IH8MUD, specially the experts (such as Jon Held and LS1FJ40) for taking the time to answer hundreds of questions.