Animal Mother
Well-Known Member
- Joined
- Sep 27, 2016
- Messages
- 838
- Country Flag
I don't think it's a fault, but when the ignition is on (2007 D4D auto), but without engine running, there are two sets of odd noises.
One comes from what looks like a vacuum pump attached to the brake master cylinder. This runs for about 5 seconds, then goes off, and runs 3 seconds on, 5 seconds off.
Is this a vacuum pump/electric brake booster?
The second noise comes from what appears to be an electronic actuator attached to the turbocharger. This makes a ticking, electric typewriter sort of noise and doesn't stop over the course of 30s-1minute.
Are the above items correct, and should they be making these noise?
One comes from what looks like a vacuum pump attached to the brake master cylinder. This runs for about 5 seconds, then goes off, and runs 3 seconds on, 5 seconds off.
Is this a vacuum pump/electric brake booster?
The second noise comes from what appears to be an electronic actuator attached to the turbocharger. This makes a ticking, electric typewriter sort of noise and doesn't stop over the course of 30s-1minute.
Are the above items correct, and should they be making these noise?