Have you looked at the radiator fins as suggested?

If they are shot, recon the radiator. If they are really fine then flush the coolant through and pressure flush the rad through from the top.

Paul

 

yeah. That’s in the right Zip code these days…

Its worth it. You won’t do better in the aftermarket for significantly less, and you’ll guarantee a perfect fit when done. None of the aftermarkets will go in without some kind of creativity.

 

Source a core, remove the rad yourself in your free time (tough to find these days) and bring the shop the parts - have them do just the recore... Removing the radiator and all involved yourself will teach ya a lot about the car. Also, unless the shop owner is a jag forum member, I would be surprised if the work went oft without issues... Source the core, remove the rad, have them fit core to rad, bring everything home, take your time, and reinstall... Be a fraction of the cost...

 

There is absolutely nothing unusual about this radiator. The shop owner most certainly would not need to be a Jag Forum member. I don’t see how that would benefit him in any way.

Ive had mine done and the shop did not even ask what car it belonged to. He was more interested in how the core was destroyed. (My Jag had been stolen and driven into a house). I did the research and found that recoring my radiator was the least complicated, and most cost effective solution.

 

It's not that part, it's the refill, burping and hose routing etc. Or, maybe it's just that I have very poor luck with mechanics in the 2020sss?

 

Wait. I just reread your post... You're suggesting what I'm suggesting,,, to bring the rad in... What I was talking about was brining the WHOLE car in and hand the mechanic the keys...

 

A 4 litre is really easy to refill with coolant. Nothing like a v12. Just fill the rad from the right hand fill plug, remove cap from header tank, turn on aircon, start car, warm up, fill up as necessary, cap rad plug, cap header tank, let cool down, check header tank. Easy.

Paul

 

OP has a facelift 6 cylinder engine. No such challenges for him.

 

Right, right. I see

 

Since its a 4.0L all he needs to do is confirm the fans are working. Often the relay gets soaked with rain water over the decades and it will eventually fry itself. A relay from an X300 can be used. I bet the relay is not working properly. Other than that its coolant flow issues.

 

Well let’s see here.

The main cooling fan is mechanical. No relay there.

The auxiliary fan does indeed have a relay. If you’re not sure which one it is, see link below:

https://www.jaguarforums.com/forum/x.../#&gid=1&pid=1

Swap it out with any other relay, I’d recommend #3.

 

I agree no electrical connection to the mechanical fan. There is a fan that blows across the condenser and that operates. In fact the overheat seamed to take longer with the AC on. It looks like the answer is another fan mounted to the radiator.

 

You shouldn't need that, I have a lot of miles, and run a cool as a cucumber, even with the AC on. I had some problems I think I posed before, bad fan clutch, tons of leaves and pollen, a collapsed hose. But when the system is up to snuff it never gets near overheating. I wouldn't stop trying.

 

As others have mentioned, the 4 litre does not overheat even in hot climates if everything is working fine.

The key areas that have been suggested are:

- deterioration of the cooling fins (typically lower 1/3rd)
- silted or blocked rad
- collapsing hoses

The answer is probably one of those.

Cheers

Paul

 

For some reason I thought 1995 had twin electrical fans. In this case, its the fan clutch. I just replaced mine and the needle rarely goes past the middle on the temp gauge

 

Thanks for the info, normal running it never goes past the middle. When I spin the fan by hand it maybe makes one revolution which should indicate it’s operating as it supposed to. An additional fan placed on front is the radiator should fix it for parades.

 

Spinning it by hand is not a good indicator of its condition. Try to get a degreaser and clean the front of the fan clutch. They usually get gunked with oil and dirt which will cause the temp sensing portion to not tighten the fan clutch when u need it most. Adding an extra fan is not bad idea, but keep in mind that if you leave it on permanently, it will restrict your airflow at high speeds. I’ll post a pic of what mine looked like when it came out of the car.

 

I'd suspect your fan clutch if it does a full revolution. I would have expected about 1/3 of a turn.

 

Your right I did see some black oily looking streaks on the front of the fan. I’ll clean it up for sure. The electric fan operates on a thermostat relay, but it would take up some air space.
Thanks again

 

I think this is on track.