Engine Cranks Slowly But Doesn't Start

[That Finnish Gu]

Starting 3 days ago my 86 Bj70 with 3b had trouble starting. It would crank really slow and not start. I noticed my oil pressure was low so I changed out my oil (Manual said that was a possible cause) and then waited a few hours and tried to start again. One of my batteries is at 10v when the engine is off of that makes a difference but I don't really want to bring it to the shop unless I have to. Any help would be appreciated, thanks in advance.

 

[Locked79]

New batteries

 

[That Finnish Gu]

New batteries

Would it be wise to replace both or just the one that's at 10v? The secondary battery is at 12v.

 

[Locked79]

Its best to replace both. But if your tight on money, one new one will pull you through.

 

[That Finnish Gu]

Thank you, I didn't realize it being at 10v was that bad.

 

[RhinoRig]

10v won't even run your radio. If this a 24v system I would replace both batteries. At least pull them out and have them checked at your local NAPA/etc. Could be your alternator is not recharging them or a crappy starter. Start with having them tested first.

 

[JuanJ]

10v won't even run your radio. If this a 24v system I would replace both batteries. At least pull them out and have them checked at your local NAPA/etc. Could be your alternator is not recharging them or a crappy starter. Start with having them tested first.

Hello,

x2.

Otherwise you may end up stranded in the middle of nowhere.







Juan