Hi guys,

as the title says, are these coolant hoses to the pressure tank plugged in correctly or do I need to replace them?

The issue that happened to me is when driving more aggressively the coolant seems to be leaking from header tank and I had to refill about 0.5L. By reading this forum and checking other diagrams I think someone routed the lines wrong.

Just need confirmation that if I change it, if it will solve the leaking coolant from unpressurised header tank problem? Or can something go wrong?

Thanks

 

NO

 

 

When you see things like this, it makes you wonder ... what else
has been altered.

 

Where did the double plug in connector come from? Don't remember seeing that part anywhere.

 

XJR specific for the intercooler radiator bleed hose?

 

Okay, thanks everyone.
I changed the hoses position and drove around 50km, didn't notice anything much different than before. We will see if it solved the shooting coolant from header tank when driving more aggressively.

I suppose that previous owner did some work on it and then made those "modifications". Was it intentional or not, I can't really say.

As far as I'm now dealing with it I noticed those lines were connected wrong, the cable for coolant level sensor was unplugged and bricked. Plugged it back in and it's working (when low coolant level it sent the message to dashboard). Why was it like that I don't know.

Also the small vacuum pipe from top of the throttle body was unplugged and hidden. I connected it as well, no changes in driving. What does that exactly do?

 

Are you referencing the Vacuum Actuator for the speed control on the AJ26 engine?

 

This is what I meant.

 

I think that's for the cruise control on the AJ26, someone else will confirm.

 

Only the early V8’s (AJ26 97’-99’ model depending) had the vacuum canister style throttle body.