HELP find my coolant leak!

Re: HELP find my coolant leak!

Postby swharris » April 27th 2010, 4:03am

Just because the oil looks "ok" does not mean that it is not contaminated.

I have my oil analyzed on a regular basis. It is only because of this I even discovered I had a coolant leak. They actually called me and said that I had a very high concentration of coolant in my sample. To me the oil looked totally fine. Dark, and not milky.

I found that the drivers side rear and passenger side front lower intake manifold gaskets were leaking right down into the motor valley. Big job, but I replaced the gaskets, the water pump, timing chain and oil pump. Unfortunately you have to pull the timing cover...to get the cover off, you have to pull the pan :banghead: :screaming:

All is good now and as a side benefit, my 215k motor has fantastic oil pressure and runs cool. So far the analysis has been right on track.

BTW I use Blackstone labs...great guys. http://www.blackstonelabs.com
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Re: HELP find my coolant leak!

Postby astroturf » April 27th 2010, 4:17am

swharris wrote:Just because the oil looks "ok" does not mean that it is not contaminated.

I have my oil analyzed on a regular basis. It is only because of this I even discovered I had a coolant leak. They actually called me and said that I had a very high concentration of coolant in my sample. To me the oil looked totally fine. Dark, and not milky.

I found that the drivers side rear and passenger side front lower intake manifold gaskets were leaking right down into the motor valley. Big job, but I replaced the gaskets, the water pump, timing chain and oil pump. Unfortunately you have to pull the timing cover...to get the cover off, you have to pull the pan :banghead: :screaming:

All is good now and as a side benefit, my 215k motor has fantastic oil pressure and runs cool. So far the analysis has been right on track.

BTW I use Blackstone labs...great guys. http://www.blackstonelabs.com


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Re: HELP find my coolant leak!

Postby Mr_Bowtie » April 27th 2010, 6:29am

swharris wrote:Just because the oil looks "ok" does not mean that it is not contaminated.

I have my oil analyzed on a regular basis. It is only because of this I even discovered I had a coolant leak. They actually called me and said that I had a very high concentration of coolant in my sample. To me the oil looked totally fine. Dark, and not milky.

I found that the drivers side rear and passenger side front lower intake manifold gaskets were leaking right down into the motor valley. Big job, but I replaced the gaskets, the water pump, timing chain and oil pump. Unfortunately you have to pull the timing cover...to get the cover off, you have to pull the pan :banghead: :screaming:

All is good now and as a side benefit, my 215k motor has fantastic oil pressure and runs cool. So far the analysis has been right on track.

BTW I use Blackstone labs...great guys. http://www.blackstonelabs.com


Very interesting....how much is it for the testing? Might be worth doing... :chevy:
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Re: HELP find my coolant leak!

Postby tex star detail [OP] » May 17th 2010, 9:46pm

Well, it took forever. Never had time to look at the van, but I found the leak. It is, just by looking at the front of the motor, leaking from the Intake Gasket. :blah:
I REALLY don't have time to do this by myself. I can do it, will just go slow, but this is my work van and need it ASAP. Quotes: $500-$900, labor only, plus tax :blah:

Sigh.... Wondering if I should just trade the van in......

Having something banging around on the rear suspension as well. Everytime I hit a bump, it sounds like a loud metal to metal bang. Cannot find anything... And the AC is acting up on me too.... :crying:
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