Starting hesitation - intermittent crank

[ilyas911]

LC200 2013 v8
Starting hesitation - intermittent crank specially when cold started

 

[Sandroad]

After checking the battery connections to make sure all are clean and tight, I would consider installing a new starter. Is the starter original and how many miles on the truck?

 

[ilyas911]

After checking the battery connections to make sure all are clean and tight, I would consider installing a new starter. Is the starter original and how many miles on the truck?

Thanks for reply

Battery health is good. Connections are tight.
Starter is original.
Milage: 320k Km

 

[ilyas911]

Battery Situation

 

[daneo]

My intuition would also be on the battery.

It runs fine once running, right? And no codes? Something with air/fuel/compression I’d expect a code.

Attach a jumpstart battery next cold start and see if it helps. Auto parts stores will be happy to run more tests on the battery aside from voltage, as well.

 

[LvCruiserNewb]

For what it's worth in regards to the battery I just went out for my weekly start on my truck out back and decided to put a meter on and record. Not necessarily apples to apples as my truck is much newer (2018, 60k) but my battery voltage sags much lower than yours during start and it fired up like brand new. Voltage bottomed out at 9.25. If it were the battery itself I'd expect a lower voltage under load. It could still be a high resistance connection between battery terminal and starter causing less voltage at starter though. Putting a jump start pack on would be a good test though if you have one.

Or maybe it's just because it's a Ford battery... jk.

 

[RET2]

An often overlooked connection is the negative to chassis. The connections at the battery are just part of the equation, speaking of which I would advise removing existing and wire brushing. Just because there is no visible corrosion doesn't mean none exists at metal to metal.

 

[tbisaacs]

A multimeter on terminals won’t tell you if that battery is good. It will just tell you the float voltage but not cranking capacity. Would suggest testing it using a proper tester before diving into the starter.

 

[ilyas911]

UPDATE!
“fixed a problem got another problem”

Thanks for all of your input. Appreciate.

Replaced the Starter motor (used part), now cranking is normal, no hesitation or grinder noise.
See photo of old starter:

Then did injector cleaning (Ultrasonic).

Now getting the problem of Hard to start or extended cranking! It is not always though!
It happens when I come back to start the engine after 3-4 rest hours after a normal drive. See video:

 

[04UZJ100]

That problem seems like it would be related to 'cleaning' the injectors.