Friends, I have a 2006 model 1.4 diesel car, but I have a brake problem that no mechanic has found. The brakes are like crap. The brake pedal is almost never pressed, both when the car is idle and when it is running. The brake vacuum pump was replaced and we tried it. It is a brand new Preiburg brand original PSA group, but when we checked the vacuum at the end of the pump, there is a very small vacuum, almost non-existent, almost no vacuum. We even tried with another original vacuum from Çıkmacı, and still nothing. What was done and the tests are: brake hydraulic fluid is present. The brake vacuum pump was replaced. The vacuum pump hose was checked up to the Westinghouse. There are no leaks or holes. There is no misfire or idle fluctuation in the car. When you go to high speeds and check the brakes, it seems as if there is an increase in vacuum and the brake pedal softens a little. Then it is very hard, even at higher speeds, it is not pressed at all. There is a whirring sound like a turbo sound. There may be a problem between the turbo wesgate and the vacuum. What causes the brake hardening, friends? There is a loud fan noise in the air conditioner at 3-4 levels, vibration. I wonder if the air conditioner works with internal return vacuum. If anyone knows, please write urgently. What is the cause of the problem? I am waiting for your help and suggestions.
volkanayd