Overheating?

[BoxsterSteve]

Joe,
If you're right there and have the serpentine belt off, spin the pulley by hand and gauge what it feels like.
You'll be able to feel a sketchy bearing quite easily.
Mine didn't leak either, but the pulley didn't spin very freely.
When I pulled the pump off, you could see the slightest bit if friction wear on the edges of the pump vanes as they were rubbing on the inside of the pump cavity.

[Snipershot]

Originally Posted by BoxsterSteve

Joe,
If you're right there and have the serpentine belt off, spin the pulley by hand and gauge what it feels like.
You'll be able to feel a sketchy bearing quite easily.
Mine didn't leak either, but the pulley didn't spin very freely.
When I pulled the pump off, you could see the slightest bit if friction wear on the edges of the pump vanes as they were rubbing on the inside of the pump cavity.

But where did the gallon and a half of coolant go? I suspect i didnt give the coolant cap enough consideration. Im gonna do like you say and pop the belt off, and if it feels good, im gonna just try a new cap and see what happens. I didnt realize the coolant cap on that tank was actually the seal for the entire system. If its leaking, then the pump would pump all the coolant right out of the cap, right? Which would mean the pump is still good. Did i mention that im not a mechanic? Lol.

Joe

[kk2002s]

As far as Truck leak, you looked under the Foam pads under the Carpet?
When my tank went, carpet was dry. The coolant that got to the trunk floor, under the foam pads, found any hole and dripped out.
Have you taken the plastic cover off the Expansion tank. This exposes the Purge valve. There is a drain hole between the purge valve and Fill. This hole connects to the overflow tube that drains down just in front of right rear tire.
Look for signs of dried or leaking coolant. The purge values can go bad as well. Though these typically lead more to condensation on the trunk lid, not a gallon + loss.
Take out carpet and foam pads, expansion tank cover plate refill you system with distilled water and get car up to temp to see what's going on

[Snipershot]

Originally Posted by kk2002s

As far as Truck leak, you looked under the Foam pads under the Carpet?
When my tank went, carpet was dry. The coolant that got to the trunk floor, under the foam pads, found any hole and dripped out.
Have you taken the plastic cover off the Expansion tank. This exposes the Purge valve. There is a drain hole between the purge valve and Fill. This hole connects to the overflow tube that drains down just in front of right rear tire.
Look for signs of dried or leaking coolant. The purge values can go bad as well. Though these typically lead more to condensation on the trunk lid, not a gallon + loss.
Take out carpet and foam pads, expansion tank cover plate refill you system with distilled water and get car up to temp to see what's going on

I took out the carpet and foam pads last night and there isnt any sign of leak, or residue. I didnt take the tank cover off, since i didnt see coolant under the foam, but thats a good idea, ill do that tonight if this new cap doesnt work. Thanks!

Joe

[Gilles]

Out of curiosity, do you have any white smoke comming from the exhaust..?

[Snipershot]

Originally Posted by Gilles

Out of curiosity, do you have any white smoke comming from the exhaust..?

None that ive seen. Why do you ask?

Joe

[Gilles]

Originally Posted by Snipershot

None that ive seen. Why do you ask?

Joe

Hello Joel,

A couple of weeks ago my Alfa Romeo Milano drank the coolant on the reservoir and I ask my son to check the exhaust while I gave her a little gas and I had a faint white puffs from the exhaust and end being a failed head gasket on the Alfa V6 engine...

However, it seems that the Porsche engines this is a rare occurrance

.

[Snipershot]

Well fellas, after all the hassle and taking all the stuff off to get to the water pump and the hoses, it turned out to be the damn coolant cap. Lol. Im not mad though, it was a good learning experience, and now when the pump does go, ill have one ready, and know how to get to it. Thanks for all the input and help, you guys are the best!

Joe

[jvmbc4]

So I read thru several threads so as not to create a duplicate and this one seems to be somewhat similar to my issue. The temp will get just past the 180 which looks to be about 200 degrees. The light will start blinking, it has never stayed on solid. A blinking light is supposed to mean either coolant level or a fault in the engine compartment cooling fan. Here is what I have done so far and what I plan on doing. But I need some input about what I may be missing.
1) The coolant was low three times after refilling it, so I plan on getting a new coolant cap.
2) The drivers side cooling fan works on both low and high speed, while the an on the passenger side is only working at high speed. I checked the relays and they are all good. Do I need to change out this fan?
3) The engine fan is working, I jumped the relay. Can the thermo sensor go bad?
4) Water pump and thermostat have 20,000 miles in 9 years. should I change them out?

Thanks, Jon

[Ciao]

Originally Posted by jvmbc4

So I read thru several threads so as not to create a duplicate and this one seems to be somewhat similar to my issue. The temp will get just past the 180 which looks to be about 200 degrees. The light will start blinking, it has never stayed on solid. A blinking light is supposed to mean either coolant level or a fault in the engine compartment cooling fan. Here is what I have done so far and what I plan on doing. But I need some input about what I may be missing.
1) The coolant was low three times after refilling it, so I plan on getting a new coolant cap.
2) The drivers side cooling fan works on both low and high speed, while the an on the passenger side is only working at high speed. I checked the relays and they are all good. Do I need to change out this fan?
3) The engine fan is working, I jumped the relay. Can the thermo sensor go bad?
4) Water pump and thermostat have 20,000 miles in 9 years. should I change them out?

Thanks, Jon

Mine gets past 180 ~ 200 deg, but never get a light and runs fine at this temp

[Lew]

Originally Posted by kk2002s

As far as Truck leak, you looked under the Foam pads under the Carpet?
When my tank went, carpet was dry. The coolant that got to the trunk floor, under the foam pads, found any hole and dripped out.
Have you taken the plastic cover off the Expansion tank. This exposes the Purge valve. There is a drain hole between the purge valve and Fill. This hole connects to the overflow tube that drains down just in front of right rear tire.
Look for signs of dried or leaking coolant. The purge values can go bad as well. Though these typically lead more to condensation on the trunk lid, not a gallon + loss.
Take out carpet and foam pads, expansion tank cover plate refill you system with distilled water and get car up to temp to see what's going on

You mentioned the purge valves can go bad. Saying the valves typically lead more to condensation on the trunk lid. That's what I experienced today. Condensation on my deck lid. When you say "can go bad", are you referring to maybe the seals are bad in the valve?