Check-engine light turned itself off — still scan it — 2020
Looking for a sanity check. The light was on for two days and then disappeared before I could schedule service. Car feels normal. Is there still likely to be u…
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Repairs & ownership
First used-oil analysis: what matters — 2022
I am thinking about sending an oil sample to establish a baseline. For a normal street engine, which trends are actually useful over time and which one-off num…
Weird vibration only between 62–70 mph (Las Vegas)
Car is smooth around town, but on the highway I get a vibration in the steering wheel and seat between about 62 and 70 mph. Above that it actually gets a littl…
Going one inch smaller for winter wheels — 2020 M2
Quick one about the car. I want smaller winter wheels for more sidewall. Overall tire diameter can stay close, but I am worried about caliper and spoke clearan…
Explorer bank-two catalyst report does not identify the bank — P0430
the generic printout says emissions fault without identifying the tested side. background: the efficiency code appeared while an exhaust tick became noticeable…
Sanity check: random misfire code but engine feels fine (Sacramento)
Scanner showed a cylinder-specific misfire code after one rough start, but the car feels completely normal now. Plugs aren't that old. Would you swap coils to…
GTI: delayed engagement into Drive when cold
After sitting overnight, shifting from Park to Drive can take a second or two before the vehicle actually engages. Once warm it behaves normally. Would you sta…
1968 Ford Mustang — inside shoulder wearing much faster than rest of tire
Quick one about the car. Front tires look fine from the outside but the inner shoulders are nearly done. Car is lowered a little. I'd rather fix the alignment…
1972 Chevrolet C10 — going one inch smaller for winter wheels
Noticed this on the C10: i want smaller winter wheels for more sidewall. Overall tire diameter can stay close, but I am worried about caliper and spoke clearan…
Altima CVT tested cold despite a hot-only complaint — P0776
I have reached the point where I need a clearer explanation. The workshop could not reproduce shudder during a short cold drive. Background: It feels acceptabl…
Miata soft-top clicking over small bumps — 2024
Getting a repetitive click from around the roof/header area on rough pavement. Top seals look okay and it doesn't leak. Has anyone isolated a trim/latch/felt c…
Blower works on some speeds but not others — 2018 Tahoe (Chicago)
Cabin fan works normally on certain settings and then cuts out or changes speed unpredictably on others. Before replacing the blower motor, what should be chec…
Anyone else: surface rust underneath a winter daily — 2024
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 crea…
DailyGeek732Community StarterNov 6, 20252024 Polestar 2 Long Range Dual MotorBay Area5 replies0 helpful
Model Y: intermittent metallic rattle after cold start
For the first few seconds after a cold start I hear a metallic rattle, then it disappears and won't come back once the engine is warm. No warning lights and it…
RotorScout94Community StarterNov 7, 20252024 Tesla Model Y Long RangeDMV / Maryland3 replies0 helpful
Coolant slowly disappears without an obvious leak — 2025
The reservoir goes from full to low over several weeks. About 10,500 miles on it.
2018 Chevrolet Tahoe — windshield replacement created a highway whistle
A windshield was replaced and now there is a whistle around highway speed that did not exist before. Glass looks seated. Any simple way to locate the air leak…
Clunk when changing from reverse to drive — 2025 Camry
There is a single clunk when changing direction at low speed, especially reverse to drive. No vibration while cruising. What would you inspect first: mounts, d…
1987 Porsche 911 — windshield replacement created a highway whistle
A windshield was replaced and now there is a whistle around highway speed that did not exist before. Glass looks seated. Any simple way to locate the air leak…
Accord driver seat clicks during left-right transitions
I can feel a small click through the seat base in corners. Mounting bolts appear tight and power functions work. How do you isolate rail play versus the frame…
R1T: dealer cannot reproduce an intermittent warning
I have brought the car in twice for the same intermittent warning and both visits ended with could-not-reproduce. I have video and timestamps. What is the best…