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I need to talk to someone who is very knowledgeable in Porsche coolant leak in early Cayennes. My 2004 Cayenne S, had a massive coolant leak, I am lookng underneath the engine but can not figure out where the leak is, and want to actually talk to someone.
If you have some time I would like to talk before I take things apart, please send me a PM I will call you.
I appreciate it very much.
Chamilka Perera
Fairfax, VA
Last edited by chamilka; Nov 20, 2011 at 09:01 PM.
The coolant pipes are the cause of massive coolant loss, the pipes are in the V of the engine and require a lot of work to get to them.
Part can be had reasonably but the labor is heavy. Worst thing is if you leave it your starter is taking a bath an may get damaged as well as some transmission issues due to contamination
If the coolant pipes aren't done, you're going to need to do them anyway. It's a fact. If you don't know your pepper history, you'll need to check these pipes out.
However, I charged at the coolant pipes, only to find they were already done. My probelm was actually the water pump. Other people have found that a cracked filling reservoir can cause significant coolant loss. Make sure you do a thorough diagnosis if you don't want to create extra work for yourself (or pay someone else more $)! Take off the covers in the engine bay and underneath the engine. Have a good look around. There are heaps of posts here on the subject and also some very good ones on Renntech.org.
Thanks all amd Mike. I removed the covers in the engine bay and underneath the engine, and inspected, could not find anything there. so like Mike said it got to be the pipes
Super Moderator Needs More Cowbell Lifetime Rennlist Member
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As Sir Mudman2 mentioned, the longer you operate the car in this condition, the higher the risk for transmission and starter damage.
I would take it off the road ASAP and address the issue.
For peace of mind, I would replace the starter while you're in there, as well as the water pump and coolant resevoir.
I would also inpsect the transmision/fluid/seal as well.
I'm actually with LTC on the starter - even if it seems fine, replace it. The part is cheap compared to the labor to get to it. When it starts to fail, you'll truly ask yourself why you didn't replace it when it was sitting in front of you (or your mechanic). If coolant damages these starters - and many believe it does - then pouring gallons onto it will probably not help its lifespan.
Not sure about the water pump, but I'd probably do the thermostat too, if the part is cheap.
BTW, not to be a smart ***, but what was the original question - where did all my coolant go??
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