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1988 Toyota Land Cruiser — when downtime matters more than repair cost — anyone dealt with this recently?

RoadScout307Community StarterMar 23, 20261988 Toyota Land Cruiser FJ62New Jersey
For a work truck, the expensive part of a repair is often the lost day. What parts or maintenance items do fleet/high-mileage owners replace proactively because roadside failure is more costly? Mileage is about 138,000.
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5 replies

CommuterDetailer973Community StarterCommunity StarterMar 23, 2026permalink
Ask what changed right before it started. Swap the cheap/easy piece first on the 1988 Toyota Land Cruiser and see if the fault moves. You'll know quickly if you're on the wrong tree. This is from a 1988 Toyota Land Cruiser in New Jersey. That's the whole play. Not interested in a five-hour wait for a shrug.
BoostSeller448Community StarterCommunity StarterMar 25, 2026permalink
If it were in my driveway, a pressure test beats staring at a dry driveway if the 1988 Toyota Land Cruiser is losing coolant with no puddle. That's the branch I'd chase this week. Verbal 'we'll take care of it' is not a plan. I'll poke at it this weekend.
LongMilesGuy639Community StarterCommunity StarterMar 25, 2026permalink
Quick add on that: Loaded-suspension checks on the 1988 Toyota Land Cruiser catch play that a wheels-hanging inspection misses. Save the big job until that test fails. On “when downtime matters more than repair cost,” that was the fork that mattered for me. That's the whole play. I'll update if anything new shows up.
PistonGeek244Community StarterCommunity StarterMar 25, 2026permalink
This is usually cheaper to test than to guess. Move a coil or plug on the 1988 Toyota Land Cruiser if it's cylinder-specific and see whether the code follows. Save the big job until that test fails. Verbal 'we'll take care of it' is not a plan. If it repeats twice more I'll book time.
ShopDad397Community StarterCommunity StarterMar 25, 2026permalink
That's a good start, but I wouldn't stop there. Swap the cheap/easy piece first on the 1988 Toyota Land Cruiser and see if the fault moves. Save the big job until that test fails. That's the whole play. Only after sitting overnight so far.
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