P/S fluid resevoir overflow

[Blue60]

I'm perplexed...79 FJ40 w/ OEM P/S previously been working fine. Took it out of the garage and let it idle in the driveway. A few minutes later I notice fluid under the vehicle. Investigate and discover it's P/S fluid. Open the hood and see fluid seeping out the top of the P/S resevoir cap. I don't believe it was overfilled when I serviced it. Any ideas? All system lines and connections show no evidence of leaking.

I did take a bit of fluid out, wiped things down and no more overflow. After a test drive of 20 minutes, I ended up adding some fluid, doing another test drive and no overflow noted. P/S system works well before and after.

I'm thinking intermittent blockage - impending pump failure?

Let me hear what you think...

Thanks!

Dave

 

[D'Animal]

It sound like Somehow air got in the system.

It burped the air out.

 

[RumBum]

2nd the air in the lines. Also the fluid gets warm and will overflow if filled too high. Sounds like you have it under control now. I wouldn't worry about the pump unless you are hearing a whine or something out of the ordinary.

 

[Blue60]

Thanks for the replies...

The thought never crossed my mind regarding air in the system...appreciate your thoughts!

Cheers,

Dave