Starter just clunks...3.0 M54

[80stech]

Then voltmeter reading at the starter while engaged IF that checks out.

[Bdc101]

I'm telling ya man... click and no spin is a classic failed starter solenoid. (Which is attached to the starter)

[ahlem]

13.32 volts across the terminals at rest and drops to less than 10 when attempting to crank. Our battery charger has a start boost function but no improvement in results shown .Any thoughts?

[EODguy]

Originally Posted by ahlem

13.32 volts across the terminals at rest and drops to less than 10 when attempting to crank. Our battery charger has a start boost function but no improvement in results shown .Any thoughts?

1st Check the B+ terminal and starter wire.

2nd BST isn't partially blown?

3rd Get a new starter most likely.

That's the order I'd go in after your voltage drop was found.

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[ahlem]

Thanks..
Can you define BST for us?

[EODguy]

BST is the Battery Safety Terminal and has a fusible link that has been known to die for reasons other than an accident.

See below photo.

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[Clavurion]

Was the voltage drop measured in engine bay or at the battery terminals? Have you checked engine ground wire or tested with a jump lead from starter body to grounding point? Is the starter connected tight (would not be the first one missing a bolt)?

[ahlem]

The voltage drop was measured at the battery terminals.
It would appear that my BST is working without toasting the fusible link since the air suspension pump kicked in vigorously. I haven't removed the intake yet to check things under there but will try to do so this weekend.