2003 Chevy Suburban V8 Four Wheel Drive Automatic 180000 miles
3 mounts ago I parked my truck at work, after work it would not start ( I had a 1/4 tank of gas) I add 3 gal of gas to the tank and it cranked (yes the fuel gage works).
A few weeks later it did the same thing, I add a couple gal of gas to the tank and it cranked.
As long as I keep half a tank of gas I have no problem with starting.
Now I am having intermittent a loss of power and cutting off with more than a 1/2 tank of gas (sometime with a full tank of fuel).
It seems to happen more when the vehicle has set for a time idling, then again I drove 200 miles and it happened when I got off the interstate.
I have replaced the fuel filter and swapped out the f/pmp relay.
I have had the same locking fuel cap on the vehicle for 3 years.
Thursday, August 31st, 2017 AT 2:19 PM