[Midlife]

I think you're now on the right track.

 

[J.R. Bert]

A battery has two volts per cell! If your battery is measuring 12 V while sitting there, it doesn't have an internally shorted cell. However, if your voltage dumps while trying to start it... Then you have a dead battery, probably caused by a short elsewhere. Charge up your Battery, and clean and reconnect the ( - ) terminal. Then with everything off, check for any electrical drain, by using your meter, between the disconnected ( + ) cable, and the ( + ) post. report back.

J.R.

Try this. If you prove theres not a drain on the battery, while in the off position, then you either have a bad charging system, worn out battery, or you left your lights on! IMO the only thing you have proved, is that your battery was drained.
J.R.

 

[Aussie]

How are the battery cables, check to make sure the cable is not loose (where it connects to the the battery connection) the cable must have no play in the connection. This could be why the truck is not jumping your car.

 

[dmbrazilian]

So Like I said I changed out the solenoid still the same thing so I returned the solenoid since mine looked new anyway and bought a new starter. Well the same thing still going on. The whole time I had been checking my battery with a meter and getting 12.5-12.7. Well someone on another forum told me to check it while trying to crank it over so I did and only got like 4.1 or so. So I took the battery to get checked thinking it surely had a bad cell but all their machine said was that it was only pushing out 3.9 on cca. Didn't say that I had a bad cell but it said to replace battery. Well I didn't want to spend more money on a battery like I did a solenoid and a starter so I came home and hooked up my boat battery to the mustang and she cranked right over. So I think I will go get me a battery this morning and hope that I don't have something shorting it out on the car or something draining it while its off. Do yall think the battery I have can still be saved?

 

[jims6t6]

My first issue is starting it. It has a new battery, new alternator, and it looks like it has a new solenoid too.

If the battery is indeed new it should be under warranty. Take it back to the dealer where it was purchased.

 

[dmbrazilian]

As far as the battery being new I don't know. It does not look to be very new. Anyway I was just woundering if it could be saved...

 

[Midlife]

You can try charging the battery, but if it doesn't crank the engine over after being charged, it isn't worth the effort to save it.

 

[J.R. Bert]

Without trying to charge it, one will never know!