1998 Lexus LS — surface rust underneath a winter daily

Checked the easy stuff on the 1998 Lexus LS and found one clue worth chasing before I book a shop. Video is ugly but it shows the hesitation.

Ask what changed right before it started. Write temp, speed, and in-gear vs coast when the 1998 Lexus LS does it — then decide on parts. That's the branch I'd chase this week. Run the total, not the monthly, before you commit. I keep a notes app thread for this now.

Start with the test that can prove you wrong. A pressure test beats staring at a dry driveway if the 1998 Lexus LS is losing coolant with no puddle. You'll know quickly if you're on the wrong tree. No need to make it theatrical. Only after sitting overnight so far.

I'd want a measurement, not a hunch. If a shop can't duplicate it on the 1998 Lexus LS, bring a video plus freeze-frame data, not just a story. If the cheap test changes it, stop and reassess. Just my two cents from doing this recently. Cold start is when I can actually reproduce it.

This is usually cheaper to test than to guess. Swap the cheap/easy piece first on the 1998 Lexus LS and see if the fault moves. That's the branch I'd chase this week. Have you gotten a second quote in writing? Not driving it hard until I know more.

Intermittent stuff lies if you only catch it once. A pressure test beats staring at a dry driveway if the 1998 Lexus LS is losing coolant with no puddle. Don't erase codes until someone who can help has seen them. On “surface rust underneath a winter daily,” that was the fork that mattered for me. Had a similar mess a couple years ago and that's what finally sorted it. Heat soak after errands is the other window.