4

You could try using a device like the one below to spray into the throttle body. It uses compressed air rather than aerosol propellants, and so is safer for the environment and likely available in your country.


4

I would not use the vacuum line shown in your picture. The reason being, it looks to be plumbed off of only one intake runner (supporting a single cylinder). While this would work good for a vacuum source, it won't do for a SeaFoam treatment. If you were to use this, you'd only be supplying the SeaFoam to a single cylinder and not to all of them. You need a ...


3

If i remember right there is a vacuum solenoid box under the dash on the passenger side, they are notorious for the hoses and connectors inside the box to disintegrate, you can open the box and re plumb it. You can follow the vacuum lines as all the actuator lines go into it. Be sure to take a picture of the inside before you start repairs. First check the ...


3

Yup, you can replace it with generic hose.


2

Here's a diagram from the service manual. Searching, "2003 Cadillac CTS Vacuum Diagram" provides similar results.


2

I had an '86 Town Car (same platform) back in the day. IIRC, the white half ring is the automatic parking brake release. When mine leaked, I removed the vacuum line and plugged it. That took care of the leak, but I didn't have the automatic release feature anymore. You would want to source a replacement part in order to regain full functionality.


1

Any competent refrigeration engineer / shop can sort a suitable replacement and they will be able to match fittings etc.


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