I think the whine is the starter staying engaged a little too long. I noticed the ignition switch doesn't spring back as well to the run position in the extreme cold. You have to consciously return it to run position.

 

Whines at or below zero I wouldn't worry about.

If I leave mine outside over night it starts harder than yours and whines for 30 seconds. I have a diehard agm battery. Baby is huge. Far as I can tell it's a pulley or PS pump.

 

Where are you guys hearing a whine? Vid #2?

 

I didn't hear much of one on his.

I'll post a video of mine tomorrow as it will be sitting out (got a hotel room for the new years celebration )

 

25 degree cold start of my truck


And a cold start of my 1979 cj-7 with the 304 v8

 

25 degree cold start of my truck


And a cold start of my 1979 cj-7 with the 304 v8

 

Jeep looks pretty sweet!

 

yeah the battery is on the way out but that's probably due to the sub, but it has been starting better recently.

It does whine when its super cold out.

 

Thanks man! But sadly she's up for sell :/

 

Yea, that's what I was referring too. Mine did that whining thing once, - long ago. Fixed it way back when and never experienced it again.

All you do is pull the return line, pump out the good and top it back off with better. Use Amsoil Tranny Fluid. I'd get 2 quarts of that, so you can flush it out well.

It won't make a peep after.