Subaru Ascent owners have reported 2 problems related to crankcase (pcv) (under the engine and engine cooling category). The most recently reported issues are listed below. Also please check out the statistics and reliability analysis of Subaru Ascent based on all problems reported for the Ascent.
Unknown pcv valve failure caused catastrophic engine failure on interstate highway (70 mph speed limit). Luckily there was room to pull to the side and no one got hurt. This part was recalled in 2019 models due to possible loss of control from engine failure. Dealer tore down engine to determine cause for possible warranty coverage and found the pcv valve was the cause of engine failure. There were no warning lights or indications of any problems before this.
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all problems of the 2020 Subaru Ascent
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At 16462 miles on odometer, while driving on hi way at 65 mph vehicle lost power and started smoking severely from the tail pipes. Pulled over and shut off. Restarted several minutes later continued to smoke and would not move. Towed to dealer, they stated the pcv valve broke apart, Subaru wants them to tear down the engine to see how much damage was done. Still waiting for them to do anything, car is sitting outside in the service area not being worked on.
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all problems of the 2019 Subaru Ascent
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