Crank but no start BUT no power to gauges

[project_88LX]

I am stumped. 1987 Mustang GT. It has been sitting for about 8 months. Supposedly ran and drove great with zero issues before being parked. I put a new battery in it and it will crank and tries to start but will not start. It's getting fuel to the Schrader valve near the distributor.

I had a locksmith come out today and make a new ignition and door key since the previous owner lost them. When you turn the ignition key forward none of the cluster functions work. You can faintly hear the key chime going off but no other indicators, lights, gauges Etc work. The tach moves when you crank it in the fuel gauge seems to be registering but nothing else is working.

The radio does not turn on and none of the power windows work but everything else on the car works as far as turn signals, headlights, door locks, lumbar on the seats, the fuel door release works the power convertible top works the horn works.

Could a bad ignition switch do this?

 

[Mcmahst]

Do you hear the pump prime the system?

Start with this list:

Thread 'Cranks OK, but No Start Checklist for Fuel Injected Mustangs'

May 22, 2006

Cranks OK, but No Start Checklist for Fuel Injected 5.0 Mustangs model years 1986-1995

A word about this checklist before you start: it is arranged in a specific order to put the most likely failure items first. That will save you time, energy and money. Start at the top of the list and work your way down. Jumping around will possibly cause you to miss just what you need to see to find and fix the problem. Don’t skip any steps because the next step depends on the last step working correctly.

Revised 26-Jul-2017 to add fuse link diagram.

All text applies to...

• jrichker
• Replies: 93
• Forum: Fox 5.0 Mustang Tech

• 

 

[AeroCoupe]

Ignition switch can definitely do that but start with the check list.

 

[project_88LX]

Do you hear the pump prime the system?

Start with this list:

Thread 'Cranks OK, but No Start Checklist for Fuel Injected Mustangs'

May 22, 2006

Cranks OK, but No Start Checklist for Fuel Injected 5.0 Mustangs model years 1986-1995

A word about this checklist before you start: it is arranged in a specific order to put the most likely failure items first. That will save you time, energy and money. Start at the top of the list and work your way down. Jumping around will possibly cause you to miss just what you need to see to find and fix the problem. Don’t skip any steps because the next step depends on the last step working correctly.

Revised 26-Jul-2017 to add fuse link diagram.

All text applies to...

• jrichker
• Replies: 93
• Forum: Fox 5.0 Mustang Tech

• 

I can not hear the pump prime

 

[AeroCoupe]

Fuel pump wiring. Location of the relay is under the driver seat. You need to verify that the ECU is sending a ground to the fuel pump relay as well as the relay is getting power from the EXU relay.

 

[Mcmahst]

A quick test to verify the fuel pump wiring is good is to use the test port jumper. If that runs tje pump, you know the relay and pump are good and the ECU’s function of grounding the FP relay is not working. Good luck.