whats the noise?

[Dirk611]

99 7.3 I thought I had a bad glow plug solenoid.
When I turn the key the engine turns over but I hear a clicking sound and truck will not fire up. I can turn key off and on quickly till I cannot hear the clicking sound and truck will start. I replaced the glow plug solenoid , but still hear the same noise. Its hard to locate with out a second person.Is there a relay somewhere under dash that I need to locate?
Remember the starter engages and turns the engine over just wont fire up!

[Dirk611]

any guess?

[NoRalPh]

There are a bunch of relays in the fusebox. Take the cover off and put your fingers on each one to feel the clicking. Maybe the IDM relay?

How are your batteries/cables? Low voltage causes relay clicking. Put a meter on the outlet in the cab and monitor it while cranking.

[Dirk611]

clicking coming from black box behind dash next to left side of radio. Looks like a relay
have not been able to get it out. Has serveral wires going to it -- Red, green/ yellow, lighte blue/orange, Tan, plus several more wires. Clicks when key is turned to engage starter.

[SWIFTSERVICE]

check your starter wires for corrsion

[ToMang07]

Another vote to check (load test) your batteries and check wires, both to/from the batteries, and to the starter for corrosion.

[Dirk611]

Maybe I wrote it wrong, or some of you guys are not reading my first post.
The starter turn over fine. It cranks no problem. When this box (relay?) clicks
(sounds like bad old ford starter relay) click,click,click starter still spins fine but truck will not fire up. I can turn key off and on untill box doesnt click and truck will fire up! What the XXXX --I mean box?

[ToMang07]

Originally Posted by Dirk611

Maybe I wrote it wrong, or some of you guys are not reading my first post.
The starter turn over fine. It cranks no problem. When this box (relay?) clicks
(sounds like bad old ford starter relay) click,click,click starter still spins fine but truck will not fire up. I can turn key off and on untill box doesnt click and truck will fire up! What the XXXX --I mean box?

If the PCM isn't reading enough volts to run the injectors, it will turn over all day and not fire. Had it happen to me, 1 battery had a bad cell, it would crank till the cows came home. Wouldn't start, and the relay would click and go nuts like you described.

I replaced both batteries with 880CCA Die Hards, and viola, fixed!

Not saying it's definitely your problem... but always start with the basics and work up from there!

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