1990 Ford F-150 — temperature climbs in traffic but drops once moving
1990 Ford F-150 XLT, about 246,000 miles. Coolant temperature rises while sitting with the A/C on, then drops once the car is moving. Coolant level looks corre…
Cooling System
Repairs & Ownership
2017 Porsche 911 Carrera S — 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…
PixelMom42Community StarterMay 24, 20262017 Porsche 911 Carrera SDallas–Fort Worth6 replies0 helpful
2013 Chevrolet Silverado 1500 — 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…
BrakeCommuterCommunity StarterMay 24, 20262013 Chevrolet Silverado 1500 LTLos Angeles7 replies0 helpful
2019 Ram 2500 — 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…
2007 Porsche Cayman — a/C is cold on the highway but warm at stoplights — buyer question from Orange County
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…
2016 Chevrolet Camaro — temperature climbs in traffic but drops once moving
2016 Chevrolet Camaro SS, about 153,500 miles. Coolant temperature rises while sitting with the A/C on, then drops once the car is moving. Coolant level looks…
2018 Subaru Forester — coolant slowly disappears without an obvious leak
2018 Subaru Forester 2.5i, about 63,000 miles. The reservoir goes from full to low over several weeks. No puddle, oil looks normal, and I cannot find dried coo…
RustBeltWrench696Community StarterMay 23, 20262018 Subaru Forester 2.5iLong Island2 replies0 helpful
2007 Toyota Camry — 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…
2022 Toyota RAV4 Hybrid XSE — a/C is cold while driving, warm at stoplights
2022 Toyota RAV4 Hybrid XSE, about 22,000 miles. A/C gets properly cold on the highway but becomes noticeably warmer at long lights. It cools down again almost…
TrackShopper30Community StarterMay 24, 20262022 Toyota RAV4 Hybrid XSENYC / Long Island2 replies0 helpful
2022 Toyota RAV4 Hybrid XSE — question: 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 th…
Question: Runs hotter sitting in traffic than moving
2020 Audi Q7 55 TFSI, about 22,000 miles. 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 s…
CleanMechanicishCommunity StarterMay 23, 20262020 Audi Q7 55 TFSIDenver / Front Range1 reply0 helpful
Need advice: Coolant level slowly drops with no puddle
2023 GMC Sierra 1500 AT4, about 4,800 miles. Reservoir moves from full to low over a few weeks. No puddle, no obvious hose leak, and the oil looks normal. Is a…
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…
2004 Toyota Land Cruiser — temperature climbs in traffic but drops once moving
2004 Toyota Land Cruiser, about 73,000 miles. Coolant temperature rises while sitting with the A/C on, then drops once the car is moving.
Runs hotter sitting in traffic than moving
2023 Jeep Wrangler Rubicon, about 96,000 miles. Coolant temp climbs while idling with the A/C on, then drops back down once I'm moving. Coolant is full and I d…
NewCarTraveler47Community StarterMay 21, 20262023 Jeep Wrangler RubiconPhiladelphia3 replies0 helpful
2005 Ford F-250 — 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…
TrackCommuter97Community StarterMay 20, 20262005 Ford F-250 6.0 Power StrokeBay Area11 replies0 helpful
2006 Mazda RX-8 — a/C is cold on the highway but warm at stoplights
2006 Mazda RX-8 Sport, about 67,000 miles. The A/C works well with road speed but gets noticeably warmer at long lights, then cools again almost immediately on…
2025 Honda Civic Sport Touring Hybrid — 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…
MileageBuilder65Community StarterMay 19, 20262025 Honda Civic Sport Touring HybridBay Area13 replies0 helpful
2024 Acura MDX — 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…
2020 Kia Stinger — temperature climbs in traffic but drops once moving
2020 Kia Stinger GT2, about 95,000 miles. Coolant temperature rises while sitting with the A/C on, then drops once the car is moving. Coolant level looks corre…