[Prob99]

1999 gmc yukon denali starts then dies immediately if I spray starting fluid it continuously it will stay running... Looking for a good starting point

 

[Cowboytrukr]

Fuel pressure. Likely your pump is failing. But check your filter first.

Check pressure, key on, engine off. Should register at least 60psi and hold.

The pressure valve is back by the distributor.

Replace the filter and check again. Wait for a while aster turning the key off before bleeding the pressure off the system.

The filter will be under the driver door on the inside of the frame rail. Use two wrenches on the fitting one to hold the outside and the other to do the turning on the line. Be careful not to round the nut off

Welcome to the Forum.