hansnacht1
Trajet brake booster pressure sensor failure
Summary of the thread
A 2002 Hyundai Trajet diesel experienced a brake booster pressure sensor failure at 100,029 km, leading to poor braking performance and an error message on the speedometer. The issue was suspected to be caused by air introduced into the system during an incorrect brake bleeding procedure. The solution involved replacing the faulty sensor, which restored normal braking performance.
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4 comment(s)
hansnacht1 (community.author)
Yes, the brake pedal travel is significantly longer, and the braking force feels greatly diminished. Did you also experience an error message on the speedometer in conjunction with the poor braking performance?
johannesmoon1
Yep, the error message was there too. Sounds like the same gremlin. Honestly, I wouldn't mess with brakes; it's like juggling chainsaws. Get it to a workshop ASAP.
hansnacht1 (community.author)
It turned out to be exactly as you suspected – a faulty brake booster pressure sensor, likely due to air in the system from a previous brake bleeding. The repair cost 90€, and the braking performance is back to normal. Thanks again for your help!
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HYUNDAI
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TRAJET
johannesmoon1
Brake issues are scary. I had something similar on my Trajet – felt like stepping on a sponge. Check your ABS system, the sensor might be faulty. Is the brake pedal travel longer than usual?