Why This Car’s AC Blew Hot Air at Red Lights: A Condenser Fan Motor Current Drop Audit
A 2015 Hyundai Sonata came in with an air conditioning complaint that followed a very specific pattern: cold air at highway speeds, progressively warmer air as speed decreased, and clearly hot air after sitting at a red light for more than 60 seconds. The moment the car started moving again, the AC recovered. The pattern […]
Silicone vs Petroleum Grease on Slider Pins: 15,000-Mile Caliper Pin Rubber Swelling Test
We installed new brake calipers on 4 identical 2018 Toyota Camry test vehicles at the same time. Two received slider pins lubricated with silicone-based brake caliper grease, which is the correct specification. Two received slider pins lubricated with petroleum-based multi-purpose grease, which is what we routinely find when customers bring cars in for brake complaints […]