Recent content by Cosmo5754

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    C0021 code after replacing booster

    It was the check valve in between the T fitting and the intake manifold. I took the fresh hose and connected the T fitting directly to the intake manifold skipping the check valve and it worked well. I did not check if it was backwards but that’s very possible. Will check that but if not I am...
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    C0021 code after replacing booster

    yes brakes are back to normal will be replacing the hose Thank you!!!!
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    C0021 code after replacing booster

    Where are the check valves? I thought the sensor that was on the brake booster was the check valve, is there another one somewhere? I don't currently have a vacuum gauge but before I get one I took the line off, when the engine was running, and tried to feel if there was any vacuum and there was...
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    C0021 code after replacing booster

    I can try to clear out the hoses with the air compressor, but the nipple at the intake manifold seems to be attached and not broken.
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    C0021 code after replacing booster

    Before replacing the parts i had the c0021 code and the stiff brake pedal. I replaced the vacuum pump and brake booster at that time problem was solved minus the brake light switch but after replacing that everything worked. It then gave a code for the yaw rate sensor so I also replaced that...
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    C0021 code after replacing booster

    I recently replaced the power brake booster, brake booster vacuum sensor, brake light switch, and air pump. After completing this I did a brake flush and bled all of the calipers. I am still getting a stiff brake pedal and a C0021 code. After replacing the brake booster with a second new unit...