Coolant Level and obsurd vanishings!
#1
Coolant Level and obsurd vanishings!
It seems that no matter what I do (topping the reservoir on a regular basis) the level of the coolant is at the Min. mark! What is going on? If there is a leak, it would eventually go below the Min mark. Any comments?
Many Thanks.
Many Thanks.
#2
Collant Level
Check to see if you have any oil in the coolant. You can tell because it would of course be on top of the coolant. I have that problem which has led to an engine replacement which is being done now. Oil was going into the coolant and the coolant was going out the exhaust I think. I have a 2001 996 3.4 L engine with 57,000 miles, 4000 of which was track DE driving.
#6
In the past I have had very slow coolant loss (as in max to min in over 6 months). I had recently replaced the coolant tank and cap, and no signs of leak and absolutely no signs of intermix. I eventually took the car to my mechanic to pressure test the system. After a few hours on the tester, absolutely no leaks. I chalked it up to air bubbles still working out (although I have heard that bubbles should not be a problem after a few drive cycles). BTW, I have a 99 tip with 81k.
#7
Three items to note about the 996 coolant tank:
1) They have a habit of failing with small hairline cracks that slowly leak under pressure - often for months - before finally failing
2) The coolant cap was replaced under a recall - the old cap 'fails' and allows excess coolant to escape - later part # ends in 01 I believe
3) Even the updated cap is really easy to cross thread onto the tank, allowing coolant to leak out when pressurized - take a close look at the cap as it goes on.
1) They have a habit of failing with small hairline cracks that slowly leak under pressure - often for months - before finally failing
2) The coolant cap was replaced under a recall - the old cap 'fails' and allows excess coolant to escape - later part # ends in 01 I believe
3) Even the updated cap is really easy to cross thread onto the tank, allowing coolant to leak out when pressurized - take a close look at the cap as it goes on.
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#9
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From: Winston-Salem, NC
Three items to note about the 996 coolant tank:
1) They have a habit of failing with small hairline cracks that slowly leak under pressure - often for months - before finally failing
2) The coolant cap was replaced under a recall - the old cap 'fails' and allows excess coolant to escape - later part # ends in 01 I believe
3) Even the updated cap is really easy to cross thread onto the tank, allowing coolant to leak out when pressurized - take a close look at the cap as it goes on.
1) They have a habit of failing with small hairline cracks that slowly leak under pressure - often for months - before finally failing
2) The coolant cap was replaced under a recall - the old cap 'fails' and allows excess coolant to escape - later part # ends in 01 I believe
3) Even the updated cap is really easy to cross thread onto the tank, allowing coolant to leak out when pressurized - take a close look at the cap as it goes on.
He reported back in a couple of days and said he got a new cap and it solved the problem, but the new cap part number ended on 02. Apparently there is a new version out there now.
Last edited by gota911; 12-20-2007 at 03:40 PM.
#10
#11
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From: Winston-Salem, NC
That should have read "said he got a new cap and it solved the problem,"
CD - That was a great response, though!
Last edited by gota911; 12-20-2007 at 06:06 PM.
#13
I actually had a really slow coolant leak a few months ago. It was determined that it was coming from a porous engine case. Dealership applied some JB Weld type stuff to it and hopefully it will fix it for good. I will go back in a month or so to do another pressure test to confirm. If it didn't do the trick, I am going to be stuck with an engine case replacement.
#14
Could be a waterpump leak
I had my coolant tank (+cap) and waterpump replaced end last year; coolant level dropped 6 months thereafter to min. - no obvious coolant loss; issue was a leak at the new waterpump. Got my 2nd waterpump in 1 year (on warranty) - issue solved.