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Slow start

  

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Scotty, i have a 2012 lexus es350 with 191k miles, 30% of the time the car has a long start up, the battery has been tested and is good, is this a sign that the car eventually wont start?


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If the battery is as old as the car is (11 years) I would replace it, despite the 'good test' of it.

 


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Posted by: @jaggator

30% of the time the car has a long start up, the battery has been tested and is good, is this a sign that the car eventually wont start?

Stop by one of the chain auto-part stores like AutoZone or Oreilly's and have them check your battery, alternator and starter. They typically offer this as a free service. If you have any potential or any 'near term" issues, you'll find out sooner rather than later.


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measure your fuel pressure.

And check our FAQ


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Posted by: @freshoiled2

If the battery is as old as the car is (11 years) I would replace it, despite the 'good test' of it.

Posted by: @hixster

check your battery

he didn't say it wasn't cranking. Unless I misunderstood.


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Posted by: @imperator

he didn't say it wasn't cranking. Unless I misunderstood.

Posted by: @jaggator

30% of the time the car has a long start up, the battery has been tested and is good, is this a sign that the car eventually wont start?

He asked if his long start ups 'signal' a future non start up.

Posted by: @hixster

have them check your battery, alternator and starter.

My recommendation is he should check the health of all the main components involved in the starting of his vehicle. IE, the battery, alternator, and the starter. I perceived that to be his concern, his question. My recommendation was based on that question. Since all 3 components can be tested for literally no cost, why not check the battery along with the alternator and starter when they are being checked?


I went to autozone and got it tested:
Battery all good

Starter: min cranking units- failed
Cranking currents- fail

Alternator: voltage regulation- pass
Diodes- pass
Charging current- fail

Does this mean that i need a starter and alternator? Again, car always cranks, but sometimes slowly

Thanks


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Posted by: @jaggator

Does this mean that i need a starter and alternator? Again, car always cranks, but sometimes slowly

Many, many things can cause slow cranking. The test results you posted indicate you have two issues, one with starter, one with alternator, so that's where I'd start. If you're not a DIYer then take it to a trusted mechanic and let him troubleshoot further. While it's not impossible that you would need to replace both parts, it is unlikely.


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Posted by: @hixster

He asked if his long start ups 'signal' a future non start up.

Right. I was under the impression that cranking = battery + starter good

"no start" means the engine doesn't run on it's own.

At least, that seems to be the terminology everywhere else.

If the issue is weak or no cranking then ... that's what I would call it.


Proper terminology got murky for me with "long" cranking. Do agree that if vehicle cranks, runs then battery and starter are OK. Your breakdown from there is helpful tho, thank you.


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