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Old 04-06-2016, 10:53 AM   #1
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Battery question

Been having some issues with starting back up. I have Diablo/superchips stacked. If I was to go get in it today it would start fine. Drive it to say a store. Go in for say 30 min. Come back out and go to start it and it just spins over. Checked fuel pressure when this happens. Good. If I hold key on it will start after about 10 revolution. So I go to autozone to let them check battery. Guy checks battery with it running and says it shows a dead cell. So I drive it a few more days. Go back there and different guy checks it with truck off. Says everything is good. Huh!!! But he says the battery only shows 84% charged. So my question could this effect hemi performance. Being only 84% charged. How should they haved checked it. Sorry so long post.

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Old 04-06-2016, 02:22 PM   #2
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Lightbulb

For some reason Hemi's do seem to like a full charge and plently of spare voltage - from my experience the best quality high amperage battery you can find makes them happy .
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Old 04-06-2016, 03:49 PM   #3
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Old 04-06-2016, 06:22 PM   #4
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Old 04-06-2016, 10:37 PM   #5
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I agree too guys, but how should they be checking it. Running or not running.
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Old 04-07-2016, 09:24 AM   #6
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Question

Is the alternator ok and the rest of the charging system? 13.8 to 14.2 volts when running at idle or something close to that...


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Old 04-07-2016, 01:14 PM   #7
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should be checked running for alternator output with all accessories on.
Battery should be checked with engine off doing a load test. Then retest with running after the battery load.
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Old 04-07-2016, 01:38 PM   #8
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Thanks for info.
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Old 04-07-2016, 06:34 PM   #9
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If it just spins over its likely not the battery or the starter. Chrysler is known for heat soaking crank sensors and they will not start or sometimes take awhile to start. The battery needs to be tested off like stated. The alternator needs to be tested loads of at idle and revved then loads on and revved. camshaft sensors can also cause extended crank times like that. Evap purge valves sticking can also cause this issue. Next time it happens see if pressing the gas helps start it faster if so its a fuel fume type issue.
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Old 04-07-2016, 07:19 PM   #10
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Quote:
Originally Posted by charged392 View Post
If it just spins over its likely not the battery or the starter. Chrysler is known for heat soaking crank sensors and they will not start or sometimes take awhile to start. The battery needs to be tested off like stated. The alternator needs to be tested loads of at idle and revved then loads on and revved. camshaft sensors can also cause extended crank times like that. Evap purge valves sticking can also cause this issue. Next time it happens see if pressing the gas helps start it faster if so its a fuel fume type issue.
Yes. Pressing the gas pedal when it does it results in it starting quicker. What does that mean.
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