GMC C-Series 2001 Owner's Manual page 246

Automatic Ether Injection System (Option)
To change an empty ether cylinder, follow these steps.
1. Loosen the 5/16 inch screw head on the
- -
cylinder to bracket clamp.
2. Spread the clamp apart.
6-44
If your diesel engine vehicle
has this feature, the ether
cylinder is located on the
upper right rear side of the
engine compartment.
3. Clean any dirt from the neck of the cylinder and the
top of the valve before you take out the cylinder.
4. Check the inside of the valve for any foreign matter.
Clean the valve as necessary.
5. Cover the valve to protect it from dirt and take out
the cylinder.
6. Install a new gasket whenever you take out the
cylinder. Use only one gasket and spread a light film
of clean oil on it before installation.
7. Put in the new cylinder. Turn it clockwise until it just
starts to contact the gasket.
8. Tighten the cylinder another half turn (180 degrees).
-
Don't over tighten.
9. Retighten the cylinder clamp.