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Old 08-16-2021, 02:30 PM   #1
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Join Date: Dec 2009
Location: USA
Posts: 262
Car cranks but doesn't start - Part 2

You can find Part 1 to this saga here...
Car cranks but doesn't start

A new ACDelco H7 AGM battery was delivered and installed today, replacing the Bosch H8. For the past 5 days, since the replacement of AOS, the car had no trouble starting.
Rather than staying true to, "Don't fix what's not broken", I changed the battery to ACDelco and the car idled rough. I understand this is expected when you disconnect battery so I wasn't worried.

I was careful to watch the charging voltage via this tool I have. It was 14.30ish volts.
Anyway, about 5~10 mins into idling, car died. And I can't start the car anymore.

Why would a car die while idling?
A blocked fuel filter?
Bad plugs? Did the AOS failing contaminated the plugs?

What do you guys think?

Thanks in advance.

Last edited by mikehkang; 08-16-2021 at 02:54 PM.
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