Rust, Body, Paint & GlassDiscussionCommunity Starter

2004 Toyota Land Cruiser — surface rust underneath a winter daily

BatteryDetailerCommunity StarterSep 4, 20262004 Toyota Land CruiserSan Antonio
2004 Toyota Land Cruiser, about 222,500 miles. There is early surface rust on brackets, fasteners and seams underneath, but nothing structural. For a salt-belt car, what treatment slows it down without creating a hard coating that traps moisture? I am in San Antonio. I would rather test this logically than replace parts.
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35 replies

CityMom597Community StarterCommunity StarterSep 4, 2026permalink
Salt and cold mornings punish cheap shortcuts. Watch brake clearance and overall diameter if you downsize winter wheels on the 2004 Toyota Land Cruiser. Then you'll know the next fork. This is from a 2004 Toyota Land Cruiser in San Antonio with 222,500 miles. I'd want that in writing, not as a promise. I'm in no rush to be a hero on it.
FlatSixGuy974Community StarterCommunity StarterSep 4, 2026permalink
This is a climate question as much as a tire question. Watch brake clearance and overall diameter if you downsize winter wheels on the 2004 Toyota Land Cruiser. That's where I'd start. Had a similar mess a couple years ago and that's what finally sorted it. I'd sleep better after that step, even if it finds nothing. Not interested in a five-hour wait for a shrug.
BatteryDetailerCommunity StarterCommunity StarterSep 4, 2026permalink
Useful. I'll report back after I verify that on my 2004 Toyota Land Cruiser. Happens in gear, not in park, for what that's worth.
WeekendDriver549Community StarterCommunity StarterSep 4, 2026permalink
Fair point. Counterpoint: If San Antonio only sees a few real storms, a good all-weather on the 2004 Toyota Land Cruiser can be the saner daily. Then you'll know the next fork. Do that first. Not interested in a five-hour wait for a shrug.
V8CollectorCommunity StarterCommunity StarterSep 4, 2026permalink
Not convinced that's the whole story. If San Antonio only sees a few real storms, a good all-weather on the 2004 Toyota Land Cruiser can be the saner daily. I'd do that before spending real money. Did the worksheet show tax yet? If the story changes I'll post the new data.
FlatSixMechanicish898Community StarterCommunity StarterSep 4, 2026permalink
This is a climate question as much as a tire question. If San Antonio only sees a few real storms, a good all-weather on the 2004 Toyota Land Cruiser can be the saner daily. Then you'll know the next fork. On “surface rust underneath a winter daily,” that was the fork that mattered for me. If they can't show the line item, I assume it's hiding. Not interested in a five-hour wait for a shrug.
ApexEnthusiastCommunity StarterCommunity StarterSep 4, 2026permalink
This is a climate question as much as a tire question. If San Antonio only sees a few real storms, a good all-weather on the 2004 Toyota Land Cruiser can be the saner daily. That's where I'd start. When does it actually happen? That's my plan before I call anyone.
ApexGarage956Community StarterCommunity StarterSep 4, 2026permalink
This is a climate question as much as a tire question. In San Antonio, dedicated winters on the 2004 Toyota Land Cruiser paid off more than I expected on ice, even on plowed roads. Then you'll know the next fork. This is from a 2004 Toyota Land Cruiser in San Antonio with 222,500 miles. Happy to compare notes if your setup is different. Not trying to scare you — just skip the expensive first guess. Next check is the cheap one I can do in a driveway.
WeekendDriver549Community StarterCommunity StarterSep 4, 2026permalink
Salt and cold mornings punish cheap shortcuts. If San Antonio only sees a few real storms, a good all-weather on the 2004 Toyota Land Cruiser can be the saner daily. That's where I'd start. Do that first. Heat soak after errands is the other window.
TruckLearnerCommunity StarterCommunity StarterSep 4, 2026permalink
I'd pick the setup I'll actually live with in slush. Watch brake clearance and overall diameter if you downsize winter wheels on the 2004 Toyota Land Cruiser. Then you'll know the next fork. This is from a 2004 Toyota Land Cruiser in San Antonio with 222,500 miles. Happy to compare notes if your setup is different. Not driving it hard until I know more.
SunBeltMilesCommunity StarterCommunity StarterSep 4, 2026permalink
This is a climate question as much as a tire question. Watch brake clearance and overall diameter if you downsize winter wheels on the 2004 Toyota Land Cruiser. That's where I'd start. Was this after sitting overnight? Not driving it hard until I know more.
HybridLearnerCommunity StarterCommunity StarterSep 4, 2026permalink
This is a climate question as much as a tire question. In San Antonio, dedicated winters on the 2004 Toyota Land Cruiser paid off more than I expected on ice, even on plowed roads. That's where I'd start. Learned this the expensive way on a previous car. Video is ugly but it shows the hesitation.
CommuterDriver262Community StarterCommunity StarterSep 4, 2026permalink
I'd pick the setup I'll actually live with in slush. Watch brake clearance and overall diameter if you downsize winter wheels on the 2004 Toyota Land Cruiser. I'd do that before spending real money. On “surface rust underneath a winter daily,” that was the fork that mattered for me. Stop there until you know. If your situation is the opposite, ignore me. No warning lights, which is why I'm documenting it.
TruckLearnerCommunity StarterCommunity StarterSep 4, 2026permalink
This is a climate question as much as a tire question. In San Antonio, dedicated winters on the 2004 Toyota Land Cruiser paid off more than I expected on ice, even on plowed roads. That's where I'd start. This is from a 2004 Toyota Land Cruiser in San Antonio with 222,500 miles. Happy to compare notes if your setup is different. A day of patience here is cheaper than a wrong part. Trying not to diagnose from the couch.
FlatSixGuy974Community StarterCommunity StarterSep 4, 2026permalink
This is a climate question as much as a tire question. Watch brake clearance and overall diameter if you downsize winter wheels on the 2004 Toyota Land Cruiser. Then you'll know the next fork. Learned this the expensive way on a previous car. I'd rather be boring and correct. If this is nothing, great. I want that in data.
TrailRoadieCommunity StarterCommunity StarterSep 4, 2026permalink
Fair point. Counterpoint: Watch brake clearance and overall diameter if you downsize winter wheels on the 2004 Toyota Land Cruiser. That's where I'd start. Stop there until you know. Worth doing even if the car feels fine right now. If this is nothing, great. I want that in data.
ApexGarage956Community StarterCommunity StarterSep 4, 2026permalink
Asking because it changes the advice: In San Antonio, dedicated winters on the 2004 Toyota Land Cruiser paid off more than I expected on ice, even on plowed roads. That's where I'd start. If you share a photo of the worksheet, easier to sanity-check. Might be overthinking it, but I'd rather overthink than overspend.
V8CollectorCommunity StarterCommunity StarterSep 4, 2026permalink
Agree — and I'd add this: If San Antonio only sees a few real storms, a good all-weather on the 2004 Toyota Land Cruiser can be the saner daily. That's where I'd start. Have you gotten a second quote in writing? Next check is the cheap one I can do in a driveway.
BrakeGuy390Community StarterCommunity StarterSep 4, 2026permalink
I'd pick the setup I'll actually live with in slush. Watch brake clearance and overall diameter if you downsize winter wheels on the 2004 Toyota Land Cruiser. I'd do that before spending real money. On “surface rust underneath a winter daily,” that was the fork that mattered for me. That's the whole play. This is the filter I use when the thread starts repeating itself. Cold start is when I can actually reproduce it.
BatteryDetailerCommunity StarterCommunity StarterSep 4, 2026permalink
Useful. I'll report back after I verify that on my 2004 Toyota Land Cruiser. I'm in no rush to be a hero on it.
WeekendDriver549Community StarterCommunity StarterSep 4, 2026permalink
Agree — and I'd add this: Watch brake clearance and overall diameter if you downsize winter wheels on the 2004 Toyota Land Cruiser. That's where I'd start. That's the whole play. I'd sleep better after that step, even if it finds nothing. I'll update if anything new shows up.
WeekendDriver549Community StarterCommunity StarterSep 4, 2026permalink
I'd pick the setup I'll actually live with in slush. If San Antonio only sees a few real storms, a good all-weather on the 2004 Toyota Land Cruiser can be the saner daily. That's where I'd start. Stop there until you know. A day of patience here is cheaper than a wrong part. Checking again after work.
V8CollectorCommunity StarterCommunity StarterSep 4, 2026permalink
That's a good start, but I wouldn't stop there. If San Antonio only sees a few real storms, a good all-weather on the 2004 Toyota Land Cruiser can be the saner daily. Then you'll know the next fork. When does it actually happen? If that fails I'll eat the diagnostic fee.
FlatSixMechanicish898Community StarterCommunity StarterSep 4, 2026permalink
Salt and cold mornings punish cheap shortcuts. Watch brake clearance and overall diameter if you downsize winter wheels on the 2004 Toyota Land Cruiser. I'd do that before spending real money. On “surface rust underneath a winter daily,” that was the fork that mattered for me. This is from a 2004 Toyota Land Cruiser in San Antonio with 222,500 miles. If they can't show the line item, I assume it's hiding. If your situation is the opposite, ignore me. I refuse to clear codes until someone else sees them.
TruckLearnerCommunity StarterCommunity StarterSep 4, 2026permalink
This is a climate question as much as a tire question. Watch brake clearance and overall diameter if you downsize winter wheels on the 2004 Toyota Land Cruiser. That's where I'd start. Happy to compare notes if your setup is different. Not trying to scare you — just skip the expensive first guess. This is the version I'd tell a friend.
TruckLearnerCommunity StarterCommunity StarterSep 4, 2026permalink
Salt and cold mornings punish cheap shortcuts. If San Antonio only sees a few real storms, a good all-weather on the 2004 Toyota Land Cruiser can be the saner daily. I'd do that before spending real money. On “surface rust underneath a winter daily,” that was the fork that mattered for me. Post the numbers (or the code) and people can get more specific. No warning lights, which is why I'm documenting it.
BoostCamper418Community StarterCommunity StarterSep 4, 2026permalink
This is a climate question as much as a tire question. Watch brake clearance and overall diameter if you downsize winter wheels on the 2004 Toyota Land Cruiser. I'd do that before spending real money. Run the total, not the monthly, before you commit. Trying not to diagnose from the couch.
TruckLearnerCommunity StarterCommunity StarterSep 4, 2026permalink
I'd pick the setup I'll actually live with in slush. In San Antonio, dedicated winters on the 2004 Toyota Land Cruiser paid off more than I expected on ice, even on plowed roads. That's where I'd start. On “surface rust underneath a winter daily,” that was the fork that mattered for me. If you share a photo of the worksheet, easier to sanity-check. Climate here is different, so treat that as a local data point. If that fails I'll eat the diagnostic fee.
TruckLearnerCommunity StarterCommunity StarterSep 4, 2026permalink
Salt and cold mornings punish cheap shortcuts. Watch brake clearance and overall diameter if you downsize winter wheels on the 2004 Toyota Land Cruiser. Then you'll know the next fork. If you share a photo of the worksheet, easier to sanity-check. That's coming from doing this as an owner, not a shop. If that fails I'll eat the diagnostic fee.
CommuterDriver262Community StarterCommunity StarterSep 4, 2026permalink
This is a climate question as much as a tire question. In San Antonio, dedicated winters on the 2004 Toyota Land Cruiser paid off more than I expected on ice, even on plowed roads. I'd do that before spending real money. Stop there until you know. Parking it somewhere I can hear it better next time.
BatteryDetailerCommunity StarterCommunity StarterSep 4, 2026permalink
Thanks — that narrowed it. I'm going to try the simpler check on the 2004 Toyota Land Cruiser first. Wrote this up on my lunch break.
BatteryDetailerCommunity StarterCommunity StarterSep 4, 2026permalink
OP update: I tried the earlier suggestion and it only happens under that one condition. I'll poke at it this weekend.
FlatSixMechanicish898Community StarterCommunity StarterSep 4, 2026permalink
This is a climate question as much as a tire question. If San Antonio only sees a few real storms, a good all-weather on the 2004 Toyota Land Cruiser can be the saner daily. I'd do that before spending real money. I'd want that in writing, not as a promise. I'd sleep better after that step, even if it finds nothing. I'll poke at it this weekend.
BatteryDetailerCommunity StarterCommunity StarterSep 4, 2026permalink
I parked the 2004 Toyota Land Cruiser and wrote down what I already tested so I'm not repeating myself. Only after sitting overnight so far.
BatteryDetailerCommunity StarterCommunity StarterSep 4, 2026permalink
Thanks — that narrowed it. I'm going to try the simpler check on the 2004 Toyota Land Cruiser first. If this is nothing, great. I want that in data.
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