Filter light, battery light, and over boost light has come one all at once! (1 Viewer)

[maurice]

I had seen a thread on here recently but it has gone stale mate, I posted on it but nothing. Hopefully we can figure this out.

I have a 89 jdm bj74. Truck still seems to drive fine. Doesn't over heat or make any undesired noises.

 

[cruisernerd]

Only time my filter light ever came on is when my alternator stopped charging. Changed brushes and good again. My truck is older tho, don't know if this will help...

 

[Dieseler]

Ditto on the brushes

 

[maurice]

I read something on that and then I popped the clutch and stalled out the other day and when I started up again all the lights were fine and my battery was charging at full capacity. As the drive progressed they came back on. Sounds like brushes to me.

 

[maurice]

100% alt brushes. Swapped and all gravy. Thanks gang