expansion tank

[sigg]

Recently the coolant started leaking from my 2002 996. I took to the garage and they told me the expansion tank was cracked and it needed replacement. A few days after the fix was done, I went for a ride and the car got up to heat and i pulled into a parking lot and a hose blew open on the spring clamp and all the coolant blew out. I took the car back to the shop and asked if they had seen any fluid go into the expansion tank when they tested the car and they said no. I believe the spring clamps are there instead of screw down clamps because of a issue with pressure so the car will blow off the clamp if too much pressure exists.

[slbates]

You should have replaced the spring clamps with the screw type clamps. There is a TSB that covers the size/part numbers.

[sigg]

So you believe the hose blew for that reason ? I was wondering if there was possibly some air in the system which may have caused excess pressure which leads me to believe the expansion tank will was not getting coolant because of the pressure

[sigg]

You should have replaced the spring clamps with the screw type clamps. There is a TSB that covers the size/part numbers.

SLBates thanks for the reply, i am new to this site which is extremely informative and i appreciate your time spent here. Is there a way to get the into the TSB info. It seem that info is for contributors only.

[Loren]

The hose likely blew because it was old, deteriorated and weak.

You really want to go with stainless steel screw type spring clamps.

[sigg]

The hose likely blew because it was old, deteriorated and weak.

You really want to go with stainless steel screw type spring clamps.

Loren,

thanks for your help. Another thing that I have a problem with is the headlight switch has not been working and i saw some post that it is possible to clean with MAF stuff but i cannot find where it is sold, any thoughts ?

[Loren]

The hose likely blew because it was old, deteriorated and weak.

You really want to go with stainless steel screw type spring clamps.

Loren,

thanks for your help. Another thing that I have a problem with is the headlight switch has not been working and i saw some post that it is possible to clean with MAF stuff but i cannot find where it is sold, any thoughts ?

I am not a proponent of cleaning electrical switches that are likely worn out. You can try but if it fixes it may be just temporary.

If you refresh the home page here the cleaner should pop up in the Amazon Store ads on the right.

[sigg]

thanks for your time, and i understand the likely hood that it is worn. I hope that since its a convertible that some debris has gotten into the contacts and that is the problem