1997 k1500 truck was running and just quit. Truck will turn over but will not start. Replaced the fuel pump and relay and still will not start. Checked power to the fuel pump and the middle wire in the 3 wire plug is hot when key is on the other two are not. Checked fuses and they are good. Replaced the wire harness in the tank on the pump and still nothing. Reason for replacing the wire harness in the tank was that the two wires that go to the pump looked like they got hot and melted together. This also made one terminal on the pump get black and burned looking. Anybody have any ideas?
I had a similar problem when the hose came off the charcoal filter in the front left, had to purge the system by removing the green cap beside the cannister, and with the key turned on, pressed down on the valve to release the air. Started right up almost immediately.
An expert who has achieved level 2 by getting 100 points
An expert that got 10 achievements.
An expert that got 5 achievements.
An expert that has over 500 points.
Re: 1997 k1500 just quit and will not start
You should have power on the tan wire for about 5 seconds with key on try to cycle key on for 5 sec off for 10 sec if no power chehave power on both sides of fuseck ecm 1 10 amp fuse if you check ecm b fuse if that is ok check for power on the orange wire and power on the green with white wire on fuel pump relay if you have power on those check for power on the grey wire out to fuel pump if you have power on grey wire you have a bad wire from the grey to the tan wire some where in the harness hope this helps
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
New pump and filter replaced....I would check out the injectors to make sure they are not clogged...I have a 94 z 71 and had to rebuild entire throttle body..I know it's a diff yr model but troubleshooting is same direction...also have the fuel pressure regulator checked for any problems
sounds like the fuel pump or filter needs replaced. pull out line off filter underneath and turn key. if fuel comes out slow try replacing filter and trying again. if pressure is still low fuelpump is bad or a blown fuse or bad relay.
Had same exact problem on my 97 k1500, although it would crank after shutting off it just would not start. I fixed the problem by replacing the fuel pump in the tank. I learned that the 5.7 liter needs something like 80 psi to start but will run on around 55-60 psi (fuel pressure)
Did you check fuel pressure to make sure you are getting proper fuel pressure? If it will start with starting fluid then it has to be either fuel related or electrical. Are you getting power to your fuel relay? When you turn the key on can you hear your fuel pump come on? I would not use anymore starting fluid at all to try and start it other wise you cause major problems.
Certainly possible.Key on /engine off cycles the pump for 3 secs.In a quiet place like an enclosed garage you can hear these pumps running and at this stage it might sound abnormal, louder and squeel-ish in a sense.Then can be verified by taking fuel pressure readings with a test gauge...good luck
there is 2 injectors on your truck and one is the start injector and its job is to inject a blast of fuel into the intake when the key is turned on. that injector is either faulty, clogged, or not getting any power.
Its your fuel pump.I had the same plomblem not too long ago.I was spraying either in to start it.I have a 97 chevy truck witch requires 65 psi to start and 55 to run properly.You need to find out much psi you need to start it.You can probaly look in your manual or just make a few calls.My truck had 55 psi and it ran fine i just had to get it running first.Good luck.I wonder if that fuel pressure regulator was a waste of time like it was for me.