2000 Chevy Silverado 1500 5.3

Asked by Nov 23, 2016 at 09:19 AM about the 2000 Chevrolet Silverado 1500 LS Ext Cab Long Bed 2WD

Question type: General

My truck has random issues starting. It sometimes starts and works but when
it is off sometimes it does not start for hours or a day or two. I have changed
the fuel pump 3 times,fuel filter, fuel regulator,spark plugs, spark plug wires,
fixed all vacuum leaks that I know of, cleaned intake and throttlebody. What I
notice when it cranks is that when checking the valve on the fuel rails I
sometimes have zero fuel in there. When it runs right it has fuel squirt out
when pressed. I have taken to 2 shops and dealer and they all tell me the
truck runs great. Dealer wants to replace intake manifold to possibly stop
random misfire codes and lean in bank 1&2....possibly. The first shop blew
out the fuel lines and it ran good for a few weeks then same symptoms came
up. What can cause no fuel pressure at the rails when key is in the on
position? once I get fuel in the rails my truck runs like a champ. Can anyone
help me out....this has been going on for close to a year now....thanks

2 Answers

405

This time of year water in the gas tank.condensation.empty he tank put dry gas.then a tank of exspensive gas high octaine.drive it as much as you can.should pan out

Issue came up after we replaced the fuel pump the first time. Water in gas lines would cause no fuel on start to move up to my fuel rails and have pressure? Not sure that sounds right. The fuel pump should still pump the gas to the rails. I am thinking it may be a wire/electrical issue or something along those lines. By the way it is a 2002...my mistake.....will try and run the fuel pump directly to the battery to see if I got a connection issue between the tank and fuse box....any other help is appreciated...thanks

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