Engine Noise
#11
if you have vacuum gauge you can or do this test
I don’t have a gauge, but I suspect I don’t have good vacuum. What do I do?
A real quick check of your vacuum system, which can be done at any time, is checking your waste gate actuator.
With the engine at idle, locate the turbo, and the can on the side that has the arm in it, should be drawn up inside. Pull on it, to see if you can pull it out. If you can, you don’t have sufficient vacuum. That is not to say that the pump is bad, but just an indicator that you vacuum level to the turbo portion is not enough. You will need to do further troubleshooting to determine what’s wrong. If it doesn't move then you most likely have enough vacuum at the wastegate.
if you need more info just let me know
I don’t have a gauge, but I suspect I don’t have good vacuum. What do I do?
A real quick check of your vacuum system, which can be done at any time, is checking your waste gate actuator.
With the engine at idle, locate the turbo, and the can on the side that has the arm in it, should be drawn up inside. Pull on it, to see if you can pull it out. If you can, you don’t have sufficient vacuum. That is not to say that the pump is bad, but just an indicator that you vacuum level to the turbo portion is not enough. You will need to do further troubleshooting to determine what’s wrong. If it doesn't move then you most likely have enough vacuum at the wastegate.
if you need more info just let me know
#12
here some more info
So how do I know if my vacuum pump is working correctly?
You will need a vacuum gauge to properly test the pump itself. You will want to hook the gauge up as close to the pump as possible. You want to see at least 20”+ Hg of vacuum at Idle.
Do I have to hook directly up to the vacuum pump?
It is best if you do, however, you can test farther out on the on the vacuum system. You can check the vacuum at the soleniods, EGR, wastegate. This will help you determine if it is a bad device or a bad vacuum line if the vacuum pump tests good.
*Note: Testing after the solenoids may give a skewed reading as they regulate the amount of vacuum given to the devices.
My vacuum level is not very good?
If you are directly attached the gauge to the pump, and you have low or no vacuum, then your pump is bad. If testing further out on the system, you will need to connect directly to the pump to insure that you have no leaks in the lines between the gauge and the pump.
Are leaks common?
Very common. Leaks come from chaffing, hardened plastic lines cracking, etc... Sometimes the vacuum level may be okay, but if the engine rocks one side to another, it may open up a crack in the line and you will lose vacuum.
---AutoMerged DoublePost---
here place get vacuum
RockAuto Parts Catalog
it is listed under brakes/wheel hubs have no clue listed there
So how do I know if my vacuum pump is working correctly?
You will need a vacuum gauge to properly test the pump itself. You will want to hook the gauge up as close to the pump as possible. You want to see at least 20”+ Hg of vacuum at Idle.
Do I have to hook directly up to the vacuum pump?
It is best if you do, however, you can test farther out on the on the vacuum system. You can check the vacuum at the soleniods, EGR, wastegate. This will help you determine if it is a bad device or a bad vacuum line if the vacuum pump tests good.
*Note: Testing after the solenoids may give a skewed reading as they regulate the amount of vacuum given to the devices.
My vacuum level is not very good?
If you are directly attached the gauge to the pump, and you have low or no vacuum, then your pump is bad. If testing further out on the system, you will need to connect directly to the pump to insure that you have no leaks in the lines between the gauge and the pump.
Are leaks common?
Very common. Leaks come from chaffing, hardened plastic lines cracking, etc... Sometimes the vacuum level may be okay, but if the engine rocks one side to another, it may open up a crack in the line and you will lose vacuum.
---AutoMerged DoublePost---
here place get vacuum
RockAuto Parts Catalog
it is listed under brakes/wheel hubs have no clue listed there
Last edited by Crazy; 12-06-2010 at 03:34 PM. Reason: Automerged Doublepost
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