Coolant loss above transmission - 3.0 V6
#1
Coolant loss above transmission - 3.0 V6
I'm trying to isolate the source of a slow coolant leak. I haven't removed the airbox or battery tray yet. Coolant appears on driver's side under transmission.
1. water pump dry - bearing is good w/ no play/noise/run-out
2. new upper rad hose/thermostat
3. coolant recovery expansion tank new w/ good cap pressure
4. no air in system (used pinch bleed method)
Any help, advice appreciated.
-Ace
2005 Jaguar X-Type Sport 3.0 - 95K miles
1. water pump dry - bearing is good w/ no play/noise/run-out
2. new upper rad hose/thermostat
3. coolant recovery expansion tank new w/ good cap pressure
4. no air in system (used pinch bleed method)
Any help, advice appreciated.
-Ace
2005 Jaguar X-Type Sport 3.0 - 95K miles
#2
I'm trying to isolate the source of a slow coolant leak. I haven't removed the airbox or battery tray yet. Coolant appears on driver's side under transmission.
1. water pump dry - bearing is good w/ no play/noise/run-out
2. new upper rad hose/thermostat
3. coolant recovery expansion tank new w/ good cap pressure
4. no air in system (used pinch bleed method)
Any help, advice appreciated.
-Ace
2005 Jaguar X-Type Sport 3.0 - 95K miles
1. water pump dry - bearing is good w/ no play/noise/run-out
2. new upper rad hose/thermostat
3. coolant recovery expansion tank new w/ good cap pressure
4. no air in system (used pinch bleed method)
Any help, advice appreciated.
-Ace
2005 Jaguar X-Type Sport 3.0 - 95K miles
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AceVentura (01-16-2016)
#3
Possibility of taking photos of top-side coolant leak on X-Type 3.0
I read your reply yesterday and gave it some thought. Thanks for the quick reply to my coolant leak issue by the way.
My next question concerns confirming your hypothesis. In other words 'how do I find it and fix it'. It's Saturday and the SOCAL weather is fair with temperatures in the mid 60's which is a big plus.
Now, like all good Jaguar DIY'ers, I have a camera phone. So, for my next question: Is it feasible to take a photo of the outlet pipe area and post it to the forum? (Preferably w/o removing the air box, intake, battery/battery tray)
I forgot to mention on my original post that I checked for coolant leakage while burping the air out of the system during the last top up (with water).
So, for the moment, I'm fairly sure that no coolant is lost until the engine comes up to operating temperature (thermostat opens). This leads me to believe the leak is on the coolant return flow side and only occurs after the thermostat opens.
My next question concerns confirming your hypothesis. In other words 'how do I find it and fix it'. It's Saturday and the SOCAL weather is fair with temperatures in the mid 60's which is a big plus.
Now, like all good Jaguar DIY'ers, I have a camera phone. So, for my next question: Is it feasible to take a photo of the outlet pipe area and post it to the forum? (Preferably w/o removing the air box, intake, battery/battery tray)
I forgot to mention on my original post that I checked for coolant leakage while burping the air out of the system during the last top up (with water).
So, for the moment, I'm fairly sure that no coolant is lost until the engine comes up to operating temperature (thermostat opens). This leads me to believe the leak is on the coolant return flow side and only occurs after the thermostat opens.
#4
I read your reply yesterday and gave it some thought. Thanks for the quick reply to my coolant leak issue by the way.
My next question concerns confirming your hypothesis. In other words 'how do I find it and fix it'. It's Saturday and the SOCAL weather is fair with temperatures in the mid 60's which is a big plus.
Now, like all good Jaguar DIY'ers, I have a camera phone. So, for my next question: Is it feasible to take a photo of the outlet pipe area and post it to the forum? (Preferably w/o removing the air box, intake, battery/battery tray)
I forgot to mention on my original post that I checked for coolant leakage while burping the air out of the system during the last top up (with water).
So, for the moment, I'm fairly sure that no coolant is lost until the engine comes up to operating temperature (thermostat opens). This leads me to believe the leak is on the coolant return flow side and only occurs after the thermostat opens.
My next question concerns confirming your hypothesis. In other words 'how do I find it and fix it'. It's Saturday and the SOCAL weather is fair with temperatures in the mid 60's which is a big plus.
Now, like all good Jaguar DIY'ers, I have a camera phone. So, for my next question: Is it feasible to take a photo of the outlet pipe area and post it to the forum? (Preferably w/o removing the air box, intake, battery/battery tray)
I forgot to mention on my original post that I checked for coolant leakage while burping the air out of the system during the last top up (with water).
So, for the moment, I'm fairly sure that no coolant is lost until the engine comes up to operating temperature (thermostat opens). This leads me to believe the leak is on the coolant return flow side and only occurs after the thermostat opens.
I only suggest that oring because it failed on me and it did indeed drown out the knock sensor after letting the leak go and just keeping an adequate coolant level.
My indication of a leak was exactly as yours, I had coolant pooling up on top of trans under the hise that feeds the pump from the tank. My first thought was the hoses around the area. They all seemed good so I looked closer and I could tell from staining that there had been coolant running into the pool from a higher point. Chased it into that valley and bingo!
#5
I read your reply yesterday and gave it some thought. Thanks for the quick reply to my coolant leak issue by the way.
My next question concerns confirming your hypothesis. In other words 'how do I find it and fix it'. It's Saturday and the SOCAL weather is fair with temperatures in the mid 60's which is a big plus.
Now, like all good Jaguar DIY'ers, I have a camera phone. So, for my next question: Is it feasible to take a photo of the outlet pipe area and post it to the forum? (Preferably w/o removing the air box, intake, battery/battery tray)
I forgot to mention on my original post that I checked for coolant leakage while burping the air out of the system during the last top up (with water).
So, for the moment, I'm fairly sure that no coolant is lost until the engine comes up to operating temperature (thermostat opens). This leads me to believe the leak is on the coolant return flow side and only occurs after the thermostat opens.
My next question concerns confirming your hypothesis. In other words 'how do I find it and fix it'. It's Saturday and the SOCAL weather is fair with temperatures in the mid 60's which is a big plus.
Now, like all good Jaguar DIY'ers, I have a camera phone. So, for my next question: Is it feasible to take a photo of the outlet pipe area and post it to the forum? (Preferably w/o removing the air box, intake, battery/battery tray)
I forgot to mention on my original post that I checked for coolant leakage while burping the air out of the system during the last top up (with water).
So, for the moment, I'm fairly sure that no coolant is lost until the engine comes up to operating temperature (thermostat opens). This leads me to believe the leak is on the coolant return flow side and only occurs after the thermostat opens.
My apologies!! That'll teach me to put my nose where it doesn't belong! Haha again, I'm sorry! Someone else might be able to step in and save the day now haha
#6
Join Date: Oct 2013
Location: Twin Waters, Sunshine Coast, QLD. Australia.
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G'day Ace,
I had a similar problem and it was the 'O' ring in the elbow. You'll have to remove the engine cover, oil filler cap and three screw fasteners, and the elbow should be obvious, LHS facing the engine with the hood up. Drain the coolant and remove the coolant hoses and there is only one bolt holding the fitting to the elbow. Easy peasy.
Coolant Elbow.
Cheers,
Jeff.
I had a similar problem and it was the 'O' ring in the elbow. You'll have to remove the engine cover, oil filler cap and three screw fasteners, and the elbow should be obvious, LHS facing the engine with the hood up. Drain the coolant and remove the coolant hoses and there is only one bolt holding the fitting to the elbow. Easy peasy.
Coolant Elbow.
Cheers,
Jeff.
#7
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#8
#10
Almost certain its the o ring that seals the water pump outlet pipe to the elbow that sends coolant into the block, located between the 2 cylinder heads under the fuel rail and lower intake assembly. If not taken care of it will drown out the knock sensor and cause a limp home mode. When that seal leaks it pools on top of the block until it overflows and then pools on top of the transmission.
#11
O-rings part number & exploded view request...
I would like a reply with the o-ring part number as well; and exploded view illustration (if possible).
#12
XR85431 is the gasket that seals the elbow flange to the block. You'll need this if you're replacing the knock sensor...
Can't really find an exploded view that shows anything other than the replacement part exploded views. Nothing of the actual valley area exploded.
#13
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