Acceptable starter voltage drop?

Ted Barnes · 07-12-2009, 07:47 PM

I'm wondering if anyone can tell me what is acceptable for voltage drop from the battery to the starter while it's cranking? I've been chasing gremlins all season and the drop in my car is 1.1 volts. I heard that anything over 0.5 volts is trouble but I'm curious if anyone's measured this?

Thanks

john anderika · 07-13-2009, 06:24 AM

You must have a min. of 10.5 volts at the starter under crank. The .5 volt is correct for voltage drop

ChevyII · 07-13-2009, 11:10 AM

Hi Ted,

Sounds like the TNT deal has taken off. Kudos to you! We may have to make a trip to Ontario in 2010 with the car and jump in.

I saw your note and thought I might pipe in. How old are your batteries and what are you using?

What are you reading at the batteries?

Mike Ferstl
SG SR 6091

Ted Barnes · 07-18-2009, 06:07 AM

Quote:

Originally Posted by ChevyII

Hi Ted,

Sounds like the TNT deal has taken off. Kudos to you! We may have to make a trip to Ontario in 2010 with the car and jump in.

I saw your note and thought I might pipe in. How old are your batteries and what are you using?

What are you reading at the batteries?

Mike Ferstl
SG SR 6091

That's the mystery. The batteries are only 18 months old...and test ok....but I'm going to throw them away anyway and replace the main cable.

Thanks Mike
Ted

07-12-2009, 07:47 PM	#1
Ted Barnes Member Join Date: Aug 2006 Location: Ontario, Canada Posts: 383 Likes: 0 Liked 0 Times in 0 Posts	Acceptable starter voltage drop? I'm wondering if anyone can tell me what is acceptable for voltage drop from the battery to the starter while it's cranking? I've been chasing gremlins all season and the drop in my car is 1.1 volts. I heard that anything over 0.5 volts is trouble but I'm curious if anyone's measured this? Thanks __________________ Ted Barnes 1511 HR

07-13-2009, 06:24 AM	#2
john anderika Junior Member Join Date: Oct 2006 Location: pittston, pa Posts: 7 Likes: 0 Liked 0 Times in 0 Posts	Re: Acceptable starter voltage drop? You must have a min. of 10.5 volts at the starter under crank. The .5 volt is correct for voltage drop

07-13-2009, 11:10 AM	#3
ChevyII Member Join Date: Sep 2006 Location: Calgary, Alberta Posts: 263 Likes: 3 Liked 2 Times in 2 Posts	Re: Acceptable starter voltage drop? Hi Ted, Sounds like the TNT deal has taken off. Kudos to you! We may have to make a trip to Ontario in 2010 with the car and jump in. I saw your note and thought I might pipe in. How old are your batteries and what are you using? What are you reading at the batteries? Mike Ferstl SG SR 6091