Coolant level slowly drops with no puddle
Reservoir moves from full to low over a few weeks. No puddle, no obvious hose leak, and the oil looks normal. Is a pressure test the next logical step or is there something simpler I should inspect f…
Cooling System
Repairs & Ownership
2023 Ford Bronco — 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 airflow/fan behavior than refrigerant level?
Anyone else: A/C is cold while driving, warm at stoplights
2022 Volkswagen GTI SE, about 37,000 miles. 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 th…
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 still be a refrigerant issue or does that…
2020 Kia Stinger — 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 airflow/fan behavior than refrigerant level?
2018 Ford Mustang GT — runs hotter sitting in traffic than moving
Coolant temp climbs while idling with the A/C on, then drops back down once I'm moving. Coolant is full and I don't see a leak. Fans do run, but I'm not sure they're moving enough air. What would you…
2023 BMW M340i — 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 checked in the resistor/controller circuit?
2023 Toyota 4Runner — blower works on some speeds but not others
2023 Toyota 4Runner TRD Pro, about 59,000 miles. Cabin fan works normally on certain settings and then cuts out or changes speed unpredictably on others. Before replacing the blower motor, what shoul…
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 still be a refrigerant issue or does that…
1998 Lexus LS — 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 airflow/fan behavior than refrigerant level?…
2017 Jeep Grand Cherokee — coolant slowly disappears without an obvious leak
2017 Jeep Grand Cherokee Limited, about 114,500 miles. 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 pres…
ManualDetailerCommunity StarterAug 25, 20262017 Jeep Grand Cherokee LimitedWashington DC13 replies0 helpful
2024 Tesla Model Y — temperature climbs in traffic but drops once moving
2024 Tesla Model Y Long Range, about 20,500 miles. 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…
2013 Infiniti G37 — coolant slowly disappears without an obvious leak
2013 Infiniti G37 xS, about 133,000 miles. 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 th…
2023 Kia Telluride — blower works on some speeds but not others
2023 Kia Telluride SX Prestige, about 41,500 miles. Cabin fan works normally on certain settings and then cuts out or changes speed unpredictably on others. Before replacing the blower motor, what sh…
CamberSeller267Community StarterAug 26, 20262023 Kia Telluride SX PrestigeNationwide4 replies0 helpful
2021 Mazda CX-5 — a/C is cold on the highway but warm at stoplights
2021 Mazda CX-5 Turbo, about 57,500 miles. 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 a…
Need advice: 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 still be a refrigerant issue or does that…
2021 Nissan Rogue — 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 airflow/fan behavior than refrigerant level?
2024 Chevrolet Corvette — coolant slowly disappears without an obvious leak
2024 Chevrolet Corvette Stingray Z51, about 28,500 miles. 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 p…
ShopHauler710Community StarterAug 20, 20262024 Chevrolet Corvette Stingray Z51California0 replies0 helpful
2021 Mercedes-Benz GLC — 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 next logical move?
1993 Mazda RX-7 — blower works on some speeds but not others
1993 Mazda RX-7 Touring, about 225,000 miles. Cabin fan works normally on certain settings and then cuts out or changes speed unpredictably on others. Before replacing the blower motor, what should b…