Hissing and whistling FJ40
#1
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Hissing and whistling FJ40
Just bought a 72 40 and there are two concerns I'm hoping someone can direct me to a fix. The first is a hissing noise when stopped (engine on) and brake pedal down medium. When hissing, vacuum drops and engine runs rough. When I push hard on the brake, hissing stops, vacuum goes back up and engine runs smooth. Second is a whistling sound when vehicle is moving. It is coming from the engine/trannie and maintains a constant tone regardless of speed or gear. It stops when the vehicle is almost stopped (1-2 MPH).
Any ideas??
Any ideas??
#2
I had a similar experience for your hissing on my 71 '40. The rubber boot had come disconnected from the flange around the rob going through the firewall to the booster. I put that back in place, and no issues since. My engine didn't react to it, though.
Post this on mud and you will get more answers.
Post this on mud and you will get more answers.
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