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Ignition problems <5000>
RE: '85 5000s
Recently my 5000 died in 5th gear. The diagnosis was pretty easy, as
oil was dripping from the high tension lead when I pulled it from the
coil. I tested the coil, and sure enough the secondary resistance
was 3.25ohms, roughly 1/2 what my Haynes manual specifies. I
replaced it with a new coil from the local Car Quest. The car
started right up and ran for a couple days before dying again. The
new coil was dead. I assumed that the ignition control unit was
screwy, somehow cooking the coil, so I bit the bullet and bought a
second new coil and ICU from Carlsen (significantly cheaper than the
generic stuff available locally!). The new coil's secondary
resistance, before installation, was only 3.08ohms - bad, according
to Haynes. Out of desperation, I installed it and the ICU, but I'm
still getting no spark.
Did Carlsen Audi send me a bad coil, or is my Haynes manual wrong
(meaning I've got lots more troubleshooting ahead)? What's Bentley
say the secondary resistance should be ("Type 1" coil)? Ideally, can
someone check their working coil and let me know what the secondary
...and the Audi is my reliable car!
'85 Audi 5000s It ain't over 'til the fast lady sings!
in beautiful Bay City, Michigan