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Both programs warn that maintenance can cause more maintenance, but early replacement of known high failure items is an essential part of both programs. Many owners on this site have reported their water pumps failed within a few miles of home, not hundreds of miles away, and several attempted to drive them home gently, often causing extensive damage to their engine.
Bottom line is, you’re going to have to replace the water pump when (not if) it ‘unpredictably’ fails, wherever/whenever that might be, so to avoid any peripheral costs like towing, engine damage, loss of vehicle use, not to mention inconvenience, replace it when it’s convenient to you, and remove the ‘unpredictable’ part.
All I can do is offer free advice, but of course you are free to ignore it.
Last edited by White Bear; 07-14-2021 at 08:27 PM.
That's true but as I'd be doing the work myself, I'm on the hook for anything else that breaks when I'm in there. So I'll just do it when I'm servicing something else around the area. I am well aware that at the first sign of any coolant problems or warnings, pull over and stop the car right now. Not next exit, not just a few more miles, now.
This thread is making me think an OEM 'sticky' could be useful to bring all information about OEM alternative sources together.
Agreed! It is something I try to follow if I believe that the original part was the best and is an important part.Usually, I keep a list of alternatives that I feel are "truly equivalent". However, I don't do the mileage to wear out much so my replacements are rarely more than wipers, brakes, filters, etc.
Have a 09 XK with 65k miles. Have read in various forums that the water pump should be replaced around 50k miles. Have had no problems with the water pump but should I be proactive and replace the water pump?
Hello Michael. I have a 2009 4.2l supercharged XF and just changed my water pump at 155k. Also just had to change the air compressor as it locked up. I tend to lean towards, If it ain't broke don't fix it. To each their own obviously. It's my daily driver so I just change all fluids,belts and plugs regularly and any major failures I tackle as they happen.
Have a 09 XK with 65k miles. Have read in various forums that the water pump should be replaced around 50k miles. Have had no problems with the water pump but should I be proactive and replace the water pump?
My 09 XKR is a daily driver since new. 118K miles now with original pump. Not to jinx myself but the only non-consumable I've had to replace is the right forward CO2 sensor. Good luck!
Maybe my experience will assist this discussion.
I changed my water pump due to it leaking. Total cost $2340 at local European Car Specialist using Jaguar supplied parts -- parts were about $800 - $900. Changed the hoses, belts, thermostat etc at the same time. One of the surprises: 5 one-use bolts costing +$50 each. Car is 2007 XKR (4.2L supercharged) with 65,000 miles.
Symptoms were a high pitched squeal for a couple of minutes when starting the engine from cold. Then a small collection of fluid beneath the car overnight. The car has been routinely maintained by the Jaguar dealer. Generally, I follow the manufacturer recommendations on changing parts proactively.
Symptoms were a high pitched squeal for a couple of minutes when starting the engine from cold. Then a small collection of fluid beneath the car overnight. The car has been routinely maintained by the Jaguar dealer. Generally, I follow the manufacturer recommendations on changing parts proactively.
I have an ‘07 NA XK with 52000 mi. She is just a weekend fun car for me so the miles come on slow.
My scenario; it get a real lite high pitch whine (maybe described better as someone playing a lite note on a flute) about 5-10 seconds after start-up but goes away in in maybe 3-5 seconds. No leaks of any kind. I assumed it was the water pump with all the “activity” regarding that scenario so I have all of the replacement parts (I think) in the garage: water pump, thermostat, belt, tensioner. I may go get all new hoses just to freshen that up, can’t say I’ve looked that close yet to see if they really need it.
My two quandaries: 1) instead of the pump, is this maybe a vacuum leak instead? (2) those $50 one use bolts; what part were they associated with? (Just so I can have them on hand when I have everything pulled apart)
Thanks
Last edited by NorthwestXK; 07-15-2021 at 11:59 AM.
Have a 09 XK with 65k miles. Have read in various forums that the water pump should be replaced around 50k miles. Have had no problems with the water pump but should I be proactive and replace the water pump?
It not the water pump so much that given me problems on my 2007. What happened is the thermostat housing is plastic. It wares out, breaks sending small pieces into the water pump. This caused over heating while sitting in traffic on a very hot day. If your going to have the housing replaced you might as well replaces the water pump as well... but it think its your choice but be sure to replace that water housing.
That picture Stuart posted is cool. I work for one of the suppliers on there and its for one of the parts of the XK that has no real issues, which is nice!
The 5 bolts are listed as Water Pump Retaining Bolts. In the final invoice they are priced at $30 each. I looked up the invoice and see the parts are $1380. Most expensive part is the water pump at $405. Also replaced was the Temperature Sensor Assembly and naturally the gaskets.
Can't comment on cause of your whine which could be something else. But your description does seem a similar sound to my experience. Without a leak, I'd be inclined to watch the situation which is what I did. (Might watch for for evidence of scattered anti-freeze drops in the engine area or anti-freeze level change) Thinking back, the whine occurred several months before I noticed a leak and the whine was only for a short time after starting the car in the garage --- the garage can amplify the sound.
My advice: replace the water pump and thermostat housing
Originally Posted by Michael?
Have a 09 XK with 65k miles. Have read in various forums that the water pump should be replaced around 50k miles. Have had no problems with the water pump but should I be proactive and replace the water pump?
Michael,
My recent experience, FWIW, on our 2000 XK8 with 53,000 original miles. No major work on the cooling system was done on NCE KTY since we brought her home in 2010 with less than 10,000 original miles on the OD.
A couple of months ago, I noticed some light antifreeze misting that had dried on the thermostat housing and knew it was time to replace it because it is made of ABS plastic and prone to failure. I bought a new URO aluminum thermostat housing, and it was a PITA to R&R as those who have done it well know. (HINT: it's much easier with the use of a crowfoot wrench you can buy on Amazon for around $10.
I also replaced the ABS plastic crossover pipes (being 20 years old I knew this assembly was now also as brittle as the thermostat housing), thermostat, radiator hoses, Dexol coolant AND the water pump because the OEM impeller is made of plastic, which also doesn't last forever (NB the ABS plastic mentioned earlier). I ordered an aftermarket water pump with a metal impeller and a strong warranty, which was priced around $50.
I'm glad I decided to replace the water pump because when I removed the original pump, it was obvious that the plastic interior part of the pump adjacent to the gasket had become brittle and was breaking apart and small plastic bits circulating in the cooling system are not a good thing. Although the impeller still looked OK, it obviously was only a matter of time before the pump would start leaking through the gasket joining it to the engine block or worse. There are lots of earlier posts in this forum about avoiding problems with all the plastic parts of the cooling system by replacing them before they fail completely. Replacing the water pump is a very easy and straightforward job. I reused the five mounting bolts, per the official Jag maintenance manual and the R&R has been trouble-free so far. Clean the bolts well and use a reliable torque wrench and yours should be OK as well.
TLDR: I chose to avoid getting stuck roadside rather than waiting for the water pump to fail.
Last edited by Nce Kty; 07-15-2021 at 03:20 PM.
Reason: Added link to crowfoot wrench.
Well I have a 2014 XKR 5L. and was still running before the lower plastic seamed outlet pipe split at 56K/Mi. Since I was there decided to replace water pump . It was a FoMoCo item, and by the feel of the bearing its life was mostly done.
However if you have the 4.2L engine then its a different story. My sons's 2005 XKR replace his pump ~ 115K/Mi. just for the sake of it.
Have a 09 XK with 65k miles. Have read in various forums that the water pump should be replaced around 50k miles. Have had no problems with the water pump but should I be proactive and replace the water pump?
I also have an ‘09 XK Coupe; with 35k miles. I just replaced a short hose which broke in my driveway (luckily)!
It cost me $300 for the replacement for the faulty 6” piece of rubber.
I have a 2006 XK , in common with a few of this type the thermostat is now inoperative and the vehicle subject to overheating. This , it appears, is now becoming more common as the thermostat is contained within a PLASTIC housing which can disintegrate and bits then affect the water pump . If you want to keep your XK , I suggest you replace both , Thermostat housing is part no AJ8 11793 and is unobtainable in Europe & UK
I bought my '10 XK three yrs. ago. The previous owner had the water pump go out while driving on a trip. Long story short, the engine overheated (58,000 miles) and he had to replace it. He found a used one with 17,000 miles and had it put in, to the tune of $11,000. So, I would say get the pump replaced, and I wish my car had a temp. gauge.
Dennis
Well I've done it. The issue then was with the hose located in the V. They were all rotten by 10 years heat so I had to replace them too.... Total cost eur 1.000
I replaced my 2011 XK water pump at 32,000 miles. It was not leaking but the pump bearing had failed, the pulley was wobbling around like it was on a universal joint. I couldn’t understand how it wasn’t leaking. What had failed was the Y pipe coming out of the valley under the intake manifold. That took a little more finding.
Is the Y pipe (you are referring to) the outlet pipe with part number AJ89664? Might this be the notorious plastic fused outlet pipe under the manifold? I've seen a few posts about members having theirs replaced. Mine was recently found to be seeping as well. Jaguar wants $1200 to replace.
07-14-2021, 04:29 PM
