IWE Bad? How to Check

[Gumby]

This is a Quick and simple Test.
You will need one of these Vacuum Hand Pump and a pice of vacuum line the correct size. I have and old IWE line.

Start with either IWE. Remove the hose It is Here

After removing the line/hose use the vacuum pump to pull 20-25 InHg of vacuum.

Let this Sit 10 min I think a loss of 3-4 InHg a min is acceptable. If good plug the line/hose back in. repeat on the other side.
Lets say they are both bad. Lets check the lines. Place a golf T in the end of the line/hose instead of IWE.
Open the hood find this solenoid by the brake booster.
Remove the Line/hose I am pointing to.

Again pull 20-25 InHg of vacuum. With Golf T's in both sides instead of IWE there should be NO LOSS or minuscule loss.
If you checked your IWE they were Good and plugged the lines back in the Loss should not be more than 4-6 InHg per MIN and you should do 10 min.
If both IWE and the Lines/hoses are good. You have a problem with the solenoid or check valve.
Good luck. Harbor fright sells this Vacuum tool for 25 bucks.

 

[WNCHSTR96]

This is a Quick and simple Test.
You will need one of these Vacuum Hand Pump and a pice of vacuum line the correct size. I have and old IWE line.
View attachment 454476
Start with either IWE. Remove the hose It is Here
View attachment 454478
After removing the line/hose use the vacuum pump to pull 20-25 lbs of vacuum.
View attachment 454479
Let this Sit 10 min I think a loss of 3-4 Lbs a min is acceptable. If good plug the line/hose back in. repeat on the other side.
Lets say they are both bad. Lets check the lines. Place a golf T in the end of the line/hose instead of IWE.
Open the hood find this solenoid by the brake booster.View attachment 454484
Remove the Line/hose I am pointing to.
View attachment 454486
Again pull 20-25 LBS of vacuum. With Golf T's in both sides instead of IWE there should be NO LOSS or minuscule loss.
If you checked your IWE they were Good and plugged the lines back in the Loss should not be more than 4-6 LBS per MIN and you should do 10 min.
Good luck. Harbor fright sells this Vacuum tool for 25 bucks.

So is @mwaite09 ’s R/F IWE bad? I feel that this is the reason you did this great info post.

 

[Gumby]

No, His IWE checked out good his Lines were bad. We did replace the axel on that side It had a torn boot.
No I made this post to show how easy the system is to trouble shoot. Obviously if the IWE and the lines Pass. it is the solenoid and the check valve.

 

[The Car Stereo Company]

size of the hand pump.

asking for a friend