Just where is the vent valve location. I can't find it anywhere

 

The original vent valve location was near the charcoal vapor canister which is mounted near the gas tank. Here are a couple of links to a videos showing it:


Per the GM TSB the inlet filter is to be relocated.

 

Well, I found where it is. It's on top of the gas tank attached to the frame rail in a very bad spot. So I was going to just unhook the hose and slide it out. But I can't get the hose to unlatch. Any suggestions????

 

The clips holding the hose can be released using a small flat blade screwdriver to pry them back. They’re supposed to release by pressing inward on the tabs but the older they get the less likely they are to work correctly. It will help to spray lubricant and compressed air into the fitting and use a pair of pliers to grip the hose as close to the fitting as possible - just don’t put too much pressure on them.

Use the screwdriver to also bend the retaining tab holding the valve in place to make sliding it off easier.

I don’t recommend relocating the filter to the top of the transmission if you drive on gravel frequently. I’ve done several of these repairs and it works much better to locate the filter in the engine bay near the brake booster. This location is more isolated from dirt/dust buildup and also makes it easy to check and clean the filter element during an oil change. 12 feet of 5/8” hose should be enough to connect the filter to the valve.

 

Just popped the vacuum hose of and gas dripped out of the hose. So I guess that is the cause of all my problems. Thanks for your help