My engine turns over but will not start won't start with starting fluid either

Hi and thanks for using 2CarPros. Com.

If you are sure everything you mentioned is good, then either we have a broken wire to the pump, a bad ground, or one of the two fusible links are bad. First, both the EEC and fuel pump relay get power via a 20ga fusible link. Each has its own.

Check the links for continuity. They will be blue in color. I attached a wiring schematic to help identify them.

Note: If there is an issue with the EEC, that should be shutting down both fuel and spark. Confirm you have spark.

Let me know what you find or if you have other questions.

Take care,
Joe

All "crank, no start" conditions are approached in the same way. Every engine requires certain functions to be able to run. Some of these functions rely on specific components to work and some components are part of more than one function so it is important to see the whole picture to be able to conclude anything about what may have failed. Also, these functions can ONLY be tested during the failure. Any other time and they will simply test good because the problem isn't present at the moment.
If you approach this in any other way, you are merely guessing and that only serves to replace unnecessary parts and wastes money.

This guide will help

https://www.2carpros.com/articles/car-cranks-but-wont-start

These are the basics that need to be tested and will give us the info required to isolate a cause.

1) Test for spark at the plug end of the wire using a spark tester. If none found, check for power supply on the + terminal of the coil with the key on.

2) Test for injector pulse using a small bulb called a noid light. If none found, check for power supply at one side of the injector with the key on.

3) Use a fuel pressure gauge to test for correct fuel pressure, also noticing if the pressure holds when key is shut off.

4) If all of these things check good, then you would need to do a complete compression test.

Once you have determined which of these functions has dropped out,
you will know which system is having the problem.

Good morning,

Did you check for spark?

https://www.2carpros.com/articles/how-to-test-an-ignition-system

You need to test the fuel pressure as well. The pump may be running but may not be producing enough pressure. Try spraying some starter fluid in the air filter and see if the truck starts and stalls.

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

This could also be the ignition switch. Power needs to be confirmed not only to the fuel pump but the ignition module.

Roy

Good afternoon,

I would start by draining the fuel tank and replacing with fresh fuel. There may be water in the tank from the water.

Change the fuel filter as well.

Start there.

Roy

Okay, so it was not the relay.

Bypassing it is not recommended. The relay is controlled by the ECM. He just connected 30 and 87 contacts on the relay to get it going.

It would be better to fix the problem not jerry rig it.

There is a fusible link that supplies power to the relay. That needs to be checked. It does sound like you need another technician who knows how to diagnose electrical systems instead of just bypassing protections.

As far as the stalling, did you change the fuel?

Roy

Got it.

Can you post a picture of the drain plug for me to view?

As far as the starting, The electrical system needs to be checked to find out why it or the relay will not turn on the pump.

Do you have a test light and a voltmeter to do some testing?

Roy

You are welcome.

Always glad to help.

Roy