I'm having two problems.
1. No click when starting and no crank.
2. No gas pressure in fuel rail.
Truck has a new battery, new starter solenoid/ relay and ignition switch.
Relay on fuel pump and EEC work. Fuses all checked.
The truck will crank (I have spark used a spark tester) if I by pass the solenoid. Wont start due to fuel pressure. I checked pump when cranking I can hear relays activate but don't hear pumps prime. If I place my hand on the pump I hear a thump when cranked.
I checked the power to neutral safety switch only got one wire with power. Does that mean maybe I don't have power at the brake switch? Lack of power to S wire on? Are these connected?
So I believe pumps bad.
(if I use a 12 volt battery could I bypass wires to confirm pumps inoperable? If so would I clip negative to negative on pump and positive to positive?)
I realized I don't have power going to the signal wire going to starter solenoid (located on fender wall) the S wire.
I have power to ignition switch STA / wire red/blue
I have power at fuel pump and EEC.
I have 12 volts going in and out on inertia switch but drops to 6 volts is that right?
I checked power at EEC module and I don't have power at the blue/red wire (32) at the relay. What am I missing or doing wrong?
Figured I have power at ignition switch when in on, run a d start, power at fuses and relays. Then power goes to inertia switch right? From there power should go fuel pump?
Or does it check with neutral safety switch? Brake switch used? This is where I get lost.
So figured no fuel due to pump. I checked connector to fuel pump and got 12 volts.
So why no click when starting?
Monday, May 31st, 2021 AT 11:16 AM
(Merged)