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13/06/2023 5:01 pm
Topic starter
I have a 2014 Nissan Pathfinder FWD 6 cylinder. I noticed the brake pedal is stiff when sitting over time. I assume there’s a vacuum leak somewhere. Where should I start when diagnosing the problem? Check valve?
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13/06/2023 5:35 pm
Vacuum hose going to the brake booster, the brake booster check valve, and of course the brake booster itself may have developed a leak.
