Can we talk about the 5.0L water pump
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I don't agree that there is always a coolant smell. The cooling system is a closed system and the only way coolant can get out is either through overheating due to some blockage which caused the pressure cap to vent or through a leak. The coolant level in the tank will raise and lower based on temperature of the coolant. That's why there is a min and max line in the system and you will see different levels at different times of the heat cycle. So if the coolant is below the min line when the car is cold (overnight) then you have a leak. I have put 15K miles on my 2012 in the last 3 years and have not seen any variation of the coolant level. I check it weekly and will wait to see if this issue eventually comes up.
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Can I ask what the S/C torsion isolator coupler kit work is all about? I have a 2010 XK Coupe with now 9,600 miles. I've complained since purchase ( 3 years ago) about losing coolant slightly and the smell of coolant. After each dealer visit and pressure test, they claim all is well with no signs of leaks. I drive very little and may never get satisfaction. I know the first water pump was crap and there were numerous upgrades since. Unfortunately, I'm at a disadvantage because of driving maybe 1,000 miles a year. Not enough for my condition to progress and be noticeable. I had a 6 year extended warranty which is now 3 years and even offered to pay for the newer upgraded water pump if the dealership covered the labor. They insisted my water pump is fine and i'm wasting my money. If so... why the smell of coolant and the loss as well? even if a modest amount? Any feedback would be appreciated.
As for your issue, IMHO if you are losing fluid and can smell coolant then you probably do have a very small leak somewhere in the system. I agree with another recent comment to try another shop and get a pressure test.
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From: Plano, TX
2010 XK NA 38,000 miles. Got the pump changed out yesterday at the dealer. P/N AJ813909. Made in Italy. They said it was leaking from the outlet tube and the pump. Pump wasn't making any noise and the leak was very slow, settling in the "valley of the engine". I was able to see some orange under the water pump pulley and smell it when the car was stopped and I got out. God I hate that smell....
Like we all know already, my service manager said this is very common and Jaguar is not reimbursing any costs. I did get 10% off though
Like we all know already, my service manager said this is very common and Jaguar is not reimbursing any costs. I did get 10% off though
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Dealer quoted $1400, ~650 parts, ~750 labor. Quote listed part numbers for the pump, 2 outlet tubes, and an oring. I bought the parts from https://www.northeastjaguarparts.com in NJ for $300 planning on doing it myself but I was never getting time to do it. I couldn't get any good feedback on local indys and a long time Jag enthusiast friend recommended the dealer so I just paid the dealer their $700. Done and done.... for now....
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Puzzling...
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I don't think Jaguar has yet figured out how to fix their water pump after what, like five iterations? I replaced a 5.0 pump in August, along with the hose reroute per the TSB and still kept smelling a whiff of coolant so I marked the tank and confirmed the level dropped 3/16 inch over the next few months. Dealer did a pressure test last week and said the NEW pump was leaking same as the original and replaced the 4 month old pump under warranty. Jaguar engineers just seem to have a mental block when it comes to water pumps. The aftermarket finally saved us from disintegrating plastic impellers on the 4.0L. Will the aftermarket save us from leaks on the 5.0L?
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Maybe the smell you are smelling is not antifreeze. It doesn't make sense that you pressure test with no loss of pressure and the coolant tank is not showing signs of loss and the dealer could not find any leak like the water pump weep hole. It just could be a hot engine smell mixed with all of the under bonnet plastic and rubber. Then again maybe you ran over a plastic bag and some of it is stuck somewhere.
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Maybe the smell you are smelling is not antifreeze. It doesn't make sense that you pressure test with no loss of pressure and the coolant tank is not showing signs of loss and the dealer could not find any leak like the water pump weep hole. It just could be a hot engine smell mixed with all of the under bonnet plastic and rubber. Then again maybe you ran over a plastic bag and some of it is stuck somewhere.
Arizona deserts in 2016 where even my lovely niece could smell the coolant whenever we made a stop. Needless to say I always carry with me a spare, Italian-made, water pump just in case I have a failure long distances from a dealer. It definitely takes away from the enjoyment of this otherwise fantastic machine.
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Pressure testing will not necessarily show anything with small leaks. A tiny leak from a weep hole may not show any leaks if you leave the pressure tester on for 24 hrs or longer. We are also dealing with expanding and contracting from the heat. I had the weep hole examined by Jaguar and my Indie and both could not find any residue. I've given up with my coolant smell and having to add very small amounts of coolant. My car was twice pressure tested over night and held pressure. I don't travel long distances as my car is strictly for pleasure with relatively short trips. I'll just have to live with it as no one has a clue. Am I happy? No, but until I find the source, there is no point in changing the water pump only to possibly find it is leaking somewhere else.
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From: Plano, TX
Pressure testing will not necessarily show anything with small leaks. A tiny leak from a weep hole may not show any leaks if you leave the pressure tester on for 24 hrs or longer. We are also dealing with expanding and contracting from the heat. I had the weep hole examined by Jaguar and my Indie and both could not find any residue. I've given up with my coolant smell and having to add very small amounts of coolant. My car was twice pressure tested over night and held pressure. I don't travel long distances as my car is strictly for pleasure with relatively short trips. I'll just have to live with it as no one has a clue. Am I happy? No, but until I find the source, there is no point in changing the water pump only to possibly find it is leaking somewhere else.
I'll watch it for a month or so and take it back in if it is still losing coolant to see if they have an explanation.
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I'm afraid I may have the same issue. After the dealer diagnosed and changed a faulty pump and outlet tube(s) 2 weeks ago, I am still having to add coolant in small amounts. I still smell coolant once the engine is turned off and I exit the car, but that could be the old dried up coolant burning off since it's only been 2 weeks since my pump change. I checked the coolant level the day of the repair and it was at the max line. I checked it yesterday (2 weeks later) and it was just above the min line. I am hoping it is still bleeding the system but I don't have much hope after reading your comments.
I'll watch it for a month or so and take it back in if it is still losing coolant to see if they have an explanation.
I'll watch it for a month or so and take it back in if it is still losing coolant to see if they have an explanation.
Last edited by bocatrip; Dec 27, 2017 at 04:26 PM.
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From: Plano, TX
Shemp. Your symptoms sound identical to mine. Considering your water pump (assuming it was the original) was replaced, I'm more than curious why your symptoms have not changed after the pump was replaced. With regards to bleeding the system, I would assume that was done at the dealership if the work was done at Jaguar. Did you have any kind of warranty for this work? Was it done at Jaguar? Did you check to see if the latest updated water pump was used? Feel free to send me a personal message if you would like to discuss in detail. Good luck and I hope we can get some satisfaction with an on going issue.
I HATE smelling coolant!
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I don't know if it was the original pump but there was no pump replacement on record, so I can assume it was. Yes, the system was bled at the dealer. Yes, it was done at the Jag dealer )I bought the car from), yes it was the latest pump (see my post above) and yes there is a 1 yr warranty on parts and labor. Like I said, I'll watch it like I have been for the past 6 months and if it keeps lowering, I'll be back to the dealer.
I HATE smelling coolant!
I HATE smelling coolant!
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From: Plano, TX
I'm less worried about a pump failure since I have the new one now but I'm not real confident if there is still a leak that I can no longer see.
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'I once knew a man who died before his time as he was worried sick about his engine failing and it never did.' Churchill.
Guys, how many times have you heard of someone here melting an engine from cooling system failure- and there have been ample failures. In each instance the price they have had to pay has been less than what you are paying without even having the failure.
But now that you have proactively recreated the scenario of a water pump failure, sans the waiting on the side of the road for an hour. I would live at the dealership till they made the coolant smell disappear, or refund half my money for misdiagnosis. On second thought, its like asking a kid to give the candy back, just get some other work done pro-bono.
Guys, how many times have you heard of someone here melting an engine from cooling system failure- and there have been ample failures. In each instance the price they have had to pay has been less than what you are paying without even having the failure.
But now that you have proactively recreated the scenario of a water pump failure, sans the waiting on the side of the road for an hour. I would live at the dealership till they made the coolant smell disappear, or refund half my money for misdiagnosis. On second thought, its like asking a kid to give the candy back, just get some other work done pro-bono.
Last edited by Queen and Country; Dec 28, 2017 at 11:36 AM.
