2016 Ford Focus — coolant slowly disappears without an obvious leak
The reservoir goes from full to low over several weeks. No puddle, oil looks normal, and I cannot find dried coolant around the hoses. Is a pressure test the n…
Cooling System
Repairs & Ownership
2022 Honda Accord 2.0T Sport — need advice: Runs hotter sitting in traffic than moving
2022 Honda Accord 2.0T Sport, about 151,000 miles. Coolant temp climbs while idling with the A/C on, then drops back down once I'm moving. Coolant is full and…
JDMEnthusiastCommunity StarterJul 21, 20262022 Honda Accord 2.0T SportUpstate New York7 replies0 helpful
2024 Rivian R1S — a/C is cold on the highway but warm at stoplights
The A/C works well with road speed but gets noticeably warmer at long lights, then cools again almost immediately once moving. Does that point more toward airf…
WeekendCollector482Community StarterMay 5, 20262024 Rivian R1S Dual-MotorCalifornia0 replies0 helpful
2023 Hyundai Ioniq 5 — a/C is cold on the highway but warm at stoplights
2023 Hyundai Ioniq 5 Limited, about 25,000 miles. The A/C works well with road speed but gets noticeably warmer at long lights, then cools again almost immedia…
1968 Ford Mustang — blower works on some speeds but not others
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…
2024 Ford Mustang — a/C is cold on the highway but warm at stoplights
2024 Ford Mustang GT, about 25,000 miles. The A/C works well with road speed but gets noticeably warmer at long lights, then cools again almost immediately onc…
2025 BMW M3 — coolant slowly disappears without an obvious leak — trying to narrow this down
The reservoir goes from full to low over several weeks. No puddle, oil looks normal, and I cannot find dried coolant around the hoses. Is a pressure test the n…
2013 Nissan 370Z — a/C is cold on the highway but warm at stoplights — second opinion before I spend money
The A/C works well with road speed but gets noticeably warmer at long lights, then cools again almost immediately once moving. Does that point more toward airf…
2021 Honda CR-V EX-L — anyone else: Coolant level slowly drops with no puddle
2021 Honda CR-V EX-L, about 151,000 miles. Reservoir moves from full to low over a few weeks. No puddle, no obvious hose leak, and the oil looks normal. Is a p…
2023 Toyota 4Runner TRD Pro — a/C is cold while driving, warm at stoplights
A/C gets properly cold on the highway but becomes noticeably warmer at long lights. It cools down again almost immediately once the car is moving. Could this s…
2023 Hyundai Ioniq 5 — coolant slowly disappears without an obvious leak
The reservoir goes from full to low over several weeks. No puddle, oil looks normal, and I cannot find dried coolant around the hoses. Is a pressure test the n…
2021 Toyota Highlander — coolant slowly disappears without an obvious leak
2021 Toyota Highlander XLE, about 66,000 miles. The reservoir goes from full to low over several weeks.
Anyone else: A/C is cold while driving, warm at stoplights
1988 Toyota Land Cruiser FJ62, about 14,500 miles. A/C gets properly cold on the highway but becomes noticeably warmer at long lights. It cools down again almo…
2021 Hyundai Palisade — temperature climbs in traffic but drops once moving
2021 Hyundai Palisade Limited, about 82,000 miles. Coolant temperature rises while sitting with the A/C on, then drops once the car is moving. Coolant level lo…
2023 Subaru Outback — temperature climbs in traffic but drops once moving
Coolant temperature rises while sitting with the A/C on, then drops once the car is moving. Coolant level looks correct. Fans run, but I do not know whether th…
RotorShopper925Community StarterJun 30, 20262023 Subaru Outback WildernessCleveland6 replies0 helpful
A/C is cold while driving, warm at stoplights
2023 BMW M340i xDrive, about 48,000 miles. A/C gets properly cold on the highway but becomes noticeably warmer at long lights. It cools down again almost immed…
2022 Volvo XC90 — coolant slowly disappears without an obvious leak
The reservoir goes from full to low over several weeks. No puddle, oil looks normal, and I cannot find dried coolant around the hoses.
2018 Ford F-150 — a/C is cold on the highway but warm at stoplights
2018 Ford F-150 XLT 2.7 EcoBoost, about 104,000 miles. The A/C works well with road speed but gets noticeably warmer at long lights, then cools again almost im…
UsedCarCommuterCommunity StarterJun 29, 20262018 Ford F-150 XLT 2.7 EcoBoostBaltimore1 reply0 helpful
2021 Mercedes-Benz GLC — blower works on some speeds but not others
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…
2021 Mercedes-Benz GLC 300 — a/C is cold while driving, warm at stoplights
A/C gets properly cold on the highway but becomes noticeably warmer at long lights. It cools down again almost immediately once the car is moving. Could this s…
TrailLearner77Community StarterJun 26, 20262021 Mercedes-Benz GLC 300Upstate New York2 replies0 helpful