Driving home Libby died, wouldn't crank. Once I got it out over the road and tried to start it I realized dead battery. I put a Odyssey in about 3 months ago. Check to see the battery light was working. So I get it back to my shop and threw the battery charger on it and went to bed. Got up and when I went to start it acted like a starter that has a bad spot in it, I tried it again and it started. Checked output and it is putting 13.8. Check for an excessive draw and nothing. Removed battery cable while running, all good. Any ideals?

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2006 KJ CRD AMSOIL Fluids, AMSOIL Oil Filter, AMSOIL ByPass Filter, Secondary Fuel Filter, Provent, Silicone Hoses, Rotomaster Turbo
2013 Audi A3 2.0 TDI Premium Plus
1948 T4 Willis Pickup
1993 C3500 Chevy 6.5 Turbo Diesel
1984 C7500 Chevy Flat Bed 366 gas
1987 R25 Chevy 350 gas

Check and make sure both ( + / - ) battery connections are clean, with no corrosion, and making good tight connections. Also check battery cable connections at the opposite ends at the grounding points and at the + terminal connections and make sure all is good and tight. Check main cable connection on starter and make sure it is tight as well...

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Supporting Vendor and Moderator of LOST
05 Jeep Liberty CRD Limited
Ironman Springs/Bilstein/Shocks
Yeti StgIV Hot Tune
Week's BatteryTray
No FCV/EGR
Samcos/ProVent
SunCoast/Transgo
Carter Intank-pmp
2mic.Sec.Fuel Filter
Flowmaster/NO CAT
V6Airbox/noVH
GM11 Bld.fan/HDClutch
IronrockArms/wwdieselMount
98 Dodge Cummins 24 Valve

Even new batteries can fail.
As stated check all the battery and chassis/engine grounding points are good.

Try swap over the Starter Relay with an identical one next to it.
Did you measure the drain on the battery when turned off by using an Amp meter in series with the battery?

Any funnies on a 2006 CRD merits having a look at the wiring harness behind the Fuel Filter Head Mounting Bracket...the LHD 2006 CRD has a known problem that the Bracket can cut into the wiring harness going behind the bracket and being shorted to chassis.

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2002 Export CRD 2.5 Sport