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Fly wheel upgraded and car is struggling to start

Xlordis

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#1
Hey all this is @XPLR_DIS … so I had my flywheel upgraded and went to Mexico without doing any revisions or data logs for my tuner. When I came back from the vacation nine days later, a car battery was completely dead. I charge the battery and checked the voltage and it said 12.4 with the car running, I spoke to my tuner in my mechanic and I was told it could possibly be a crank relearn situation because the gears are also very rough, slipping and redlining in first gear as well as in 5/6th. My question is I’m not sure if this is all related to the battery or the flywheel I did perform a crank relearn through VCM scanner. HP tuners myself and I did state that the crank relearn was successful. The car seemed to start perfect the next morning until I try to start it again in the afternoon and it almost felt like the car was Stalling and struggling to start. Not sure if this could also be alternator issue. Has this happened to anyone else?
 

GearHead_1

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#2
Kind of sounds like a charging system problem, though a bad battery can exhibit the same issues. Why did you change the flywheel? No idea why one would upgrade a flywheel on an automatic transmission.
 

OP
Xlordis

Xlordis

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Thread Starter #3
Upgraded flex plate * it’s been recommended that it gets changed when car power increases past 600 awhp
 

Cdubya

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#4
Mine usually says 14.6V with the car running.
 

UNBROKEN

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Upgraded flex plate * it’s been recommended that it gets changed when car power increases past 600 awhp
Sure…by people that want to sell you a flex plate like that idiot Daren used to.
Put a new battery in it…your issues will very likely go away.
 

GearHead_1

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Upgraded flex plate * it’s been recommended that it gets changed when car power increases past 600 awhp
Yeah, I wasn't calling you out on the terminology. We knew what you meant. I just haven't heard of any issues with the stock ones cracking.
 

blackdog

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Sure…by people that want to sell you a flex plate like that idiot Daren used to.
Put a new battery in it…your issues will very likely go away.
Agree +1
 

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Xlordis

Xlordis

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Thread Starter #8
Sure…by people that want to sell you a flex plate like that idiot Daren used to.
Put a new battery in it…your issues will very likely go away.
New battery same issue ???? Can’t figure this out
 

TMac

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