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1988 Toyota Land Cruiser — footwell gets wet only after heavy rain — anyone dealt with this recently?

BrakeBuilderCommunity StarterJun 24, 20261988 Toyota Land Cruiser FJ62Florida
The car stays dry in normal rain but after a long storm one front footwell gets damp. Door seal looks okay. What drain/seam tests would you do before tearing the interior apart? I would rather test this logically than replace parts.
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12 replies

PistonShopperCommunity StarterCommunity StarterJun 24, 2026permalink
This is usually cheaper to test than to guess. A pressure test beats staring at a dry driveway if the 1988 Toyota Land Cruiser is losing coolant with no puddle. Don't erase codes until someone who can help has seen them. Time, temperature, and whether it's in gear are the notes that actually help a shop. I'm keeping receipts and dates in one folder.
TowDaily897Community StarterCommunity StarterJun 25, 2026permalink
Asking because it changes the advice: Two 1988 Toyota Land Cruisers can feel identical and have different causes, so measure before you copy someone else's repair. Save the big job until that test fails. This is from a 1988 Toyota Land Cruiser in Florida. Write the result down so the next test isn't a repeat of the last one. I'm keeping receipts and dates in one folder.
PistonShopperCommunity StarterCommunity StarterJun 24, 2026permalink
Intermittent stuff lies if you only catch it once. Move a coil or plug on the 1988 Toyota Land Cruiser if it's cylinder-specific and see whether the code follows. Don't erase codes until someone who can help has seen them. On “footwell gets wet only after heavy rain,” that was the fork that mattered for me. Keep sale price, fees, and rate as three different conversations. I'd rather look cautious in this thread than stuck later.
RoadTripDIYerCommunity StarterCommunity StarterJun 24, 2026permalink
I'd want a measurement, not a hunch. Get a real battery/charging test on the 1988 Toyota Land Cruiser, not just resting voltage, before blaming a module. You'll know quickly if you're on the wrong tree. Do that first. I'd rather be boring and correct. I'm in no rush to be a hero on it.
PistonShopperCommunity StarterCommunity StarterJun 25, 2026permalink
If it were in my driveway, if a shop can't duplicate it on the 1988 Toyota Land Cruiser, bring a video plus freeze-frame data, not just a story. Save the big job until that test fails. Keep sale price, fees, and rate as three different conversations. If this is nothing, great. I want that in data.
TowDaily897Community StarterCommunity StarterJun 26, 2026permalink
I hear you, though I'd still want a second check. Get a real battery/charging test on the 1988 Toyota Land Cruiser, not just resting voltage, before blaming a module. You'll know quickly if you're on the wrong tree. Time, temperature, and whether it's in gear are the notes that actually help a shop. I'd rather look cautious in this thread than stuck later.
MarketMiles399Community StarterCommunity StarterJun 26, 2026permalink
That's a good start, but I wouldn't stop there. Get a real battery/charging test on the 1988 Toyota Land Cruiser, not just resting voltage, before blaming a module. That's the branch I'd chase this week. Post the numbers (or the code) and people can get more specific. Your commute and mine probably aren't the same, but the test still applies. That's my plan before I call anyone.
BatteryScout255Community StarterCommunity StarterJun 25, 2026permalink
Ask what changed right before it started. Two 1988 Toyota Land Cruisers can feel identical and have different causes, so measure before you copy someone else's repair. If the cheap test changes it, stop and reassess. No need to make it theatrical. Trying not to diagnose from the couch.
DetailOwner225Community StarterCommunity StarterJun 25, 2026permalink
Log the conditions before you spend. If a shop can't duplicate it on the 1988 Toyota Land Cruiser, bring a video plus freeze-frame data, not just a story. That's the branch I'd chase this week. On “footwell gets wet only after heavy rain,” that was the fork that mattered for me. Happy to compare notes if your setup is different. I'm in no rush to be a hero on it.
MarketMiles399Community StarterCommunity StarterJun 25, 2026permalink
Intermittent stuff lies if you only catch it once. A pressure test beats staring at a dry driveway if the 1988 Toyota Land Cruiser is losing coolant with no puddle. You'll know quickly if you're on the wrong tree. On “footwell gets wet only after heavy rain,” that was the fork that mattered for me. Happy to compare notes if your setup is different. That's my plan before I call anyone.
NoMarkupCamper583Community StarterCommunity StarterJun 25, 2026permalink
I wouldn't throw parts yet. Write temp, speed, and in-gear vs coast when the 1988 Toyota Land Cruiser does it — then decide on parts. Save the big job until that test fails. This is from a 1988 Toyota Land Cruiser in Florida. No need to make it theatrical. Next check is the cheap one I can do in a driveway.
RoadTripMechanicish788Community StarterCommunity StarterJun 26, 2026permalink
Asking because it changes the advice: Loaded-suspension checks on the 1988 Toyota Land Cruiser catch play that a wheels-hanging inspection misses. You'll know quickly if you're on the wrong tree. That's the whole play. I keep a notes app thread for this now.
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