Reply to thread

Message: [QUOTE="Denver, post: 1549788, member: 608"] I took the batteries out and had them tested at Napa. They failed. 1 year old motorcrafts. 850cca. Napa testing device showed one was only producing low 500's cca at 12.4 volts and the other was high 400's cca at 12.3 volts. Ended up getting new Napa batteries as the Fords were a warranty set and the prorate would probably be little by now. Installed the Napa ones and it started right up. Key off was showing 12.6 volts. Key on 12.1 volts. Key on starting it went to 11.3 volts. Charging volts is 14.46 within a minute, maybe 20 - 30 seconds after start. Haven't driven the truck yet but have a battery tender on them topping off the voltage. I'll see if replacing the batteries fixes this intermittent no start issue. I'll report back over time. This was a first though for finding out the batteries were bad. Usually it's just been a slow crank right away or they are just dead. This one threw me off as it turned over strong, for about 20 - 30 seconds though and then it got slow. They were also a year old. I've had some batteries go dead in a year but was usually only one of the two, instead of both. [/QUOTE]

Verification

Random media

Loud'n'dirty

New_Image87

F-350

Duramax hauling grain truck

20151111_135323

fender_off

Joshua tree

20190813_173831

617DFF59-4AAF-4F94-9779-4B06E10C4EB9

Latest posts

A few turbo questions and a rant
- Latest: ghohouston
- Yesterday at 6:06 PM
7.3 Aftermarket
Florida...
- Latest: Mark Kovalsky
- Wednesday at 10:22 AM
Southeast US
American made up-pipes?
- Latest: Powerstroke Racer
- Wednesday at 9:03 AM
7.3 Aftermarket
Georgia Roll Call
- Latest: ju015dd
- Tuesday at 7:03 AM
Southeast US
Ford 7.3 Passenger Bank Dead
- Latest: Powerstroke Cowboy
- Monday at 8:20 PM
7.3 Tech

Members online

bismic

Total: 920 (members: 1, guests: 919)

Top