SyNtAxx
Veteran Member
Hello,
Its been along time since Ive been to the forums. Life changes, etc. In any case I've come across an issue on my wifes 2004 PD. I think it is al related to vacuum, or lack there of.
I had an incident, though I think it is unrelated, but for full disclosure I'll include it. One day I was traveling and entering the highy on a merge ramp and hit the go pedal for some turbo juice...and heard a loud pop. I had no turbo. I limped home a few miles and inspected under the hood and found the boost pipe a the egr had blown off, no biggie and I reattached on purcahsed the hold down kit as the notches on the pipe had worn off.
Here is the actaul propblem(s). While moving the car in the driveway, I felt that the brakes seemed very soft and fell to the floor quickly with little actuation of the pads on the rotors.
I took the car for a ride later in the evening an noticed two things. The pedal seemed *very* hard now, like i had to stand on the brakes quite literally to get the car to brake. While returning home, I also noticed the turbo seemed to be missing. I hit the accelerator and the turbo came back, I also hit the brakes and they also then appeared to be functioning correctly.
I thought, hmm interesting. Since both the turbo (vnt actuator) and the power brakes need vacuum to operate these may be symptoms of the same problem. Which seemed to be lack of vacuum.
As I recall from instaling my timing belt on my 2001 TDI, ther eis a vacuum pump on the right side of the engine spun off the cam. Could this be the cause, a failed or failing pump?
I tested the master cylinder by stepping/pumping on brakes with car off/not running, and they are very hard. In the old days that seemed to rule out the brake booster/cylinder.
What ever the issue is its common to both turbo and the brakes. Any Ideas ?
Thanks,
NIck
Its been along time since Ive been to the forums. Life changes, etc. In any case I've come across an issue on my wifes 2004 PD. I think it is al related to vacuum, or lack there of.
I had an incident, though I think it is unrelated, but for full disclosure I'll include it. One day I was traveling and entering the highy on a merge ramp and hit the go pedal for some turbo juice...and heard a loud pop. I had no turbo. I limped home a few miles and inspected under the hood and found the boost pipe a the egr had blown off, no biggie and I reattached on purcahsed the hold down kit as the notches on the pipe had worn off.
Here is the actaul propblem(s). While moving the car in the driveway, I felt that the brakes seemed very soft and fell to the floor quickly with little actuation of the pads on the rotors.
I took the car for a ride later in the evening an noticed two things. The pedal seemed *very* hard now, like i had to stand on the brakes quite literally to get the car to brake. While returning home, I also noticed the turbo seemed to be missing. I hit the accelerator and the turbo came back, I also hit the brakes and they also then appeared to be functioning correctly.
I thought, hmm interesting. Since both the turbo (vnt actuator) and the power brakes need vacuum to operate these may be symptoms of the same problem. Which seemed to be lack of vacuum.
As I recall from instaling my timing belt on my 2001 TDI, ther eis a vacuum pump on the right side of the engine spun off the cam. Could this be the cause, a failed or failing pump?
I tested the master cylinder by stepping/pumping on brakes with car off/not running, and they are very hard. In the old days that seemed to rule out the brake booster/cylinder.
What ever the issue is its common to both turbo and the brakes. Any Ideas ?
Thanks,
NIck
