Cool... but expensive!!!

LaRiche (my local dealer) has no idea what the problem is. I gave it to them on Monday and checked on it today... all they did is test drive it a bunch to try and to get it to repeat itself. > I asked them if they checked the pump, "Yeah... we put the scan gun on the PCM and it read that the pump was being activated"... ??? Are they that dumb?

This evening I took the hose off of the Intercooler pump inlet. At first, I just started the car... no coolant moved... so then I put my hand up against the pump... I felt no suction and no coolant moved... so THEN I kinked the hose and put my hand up against the pump housing... still no suction. Put my finger in the pump to feel the turbine... not moving.

I think LaRiche, just like many other people, don't realize that my intercooler has it's own separate coolant system than the block.

I think I'll try taking it to a different dealer. Maybe I'll see how much I can just buy the stock pump for... something tells me it'll be expensive.

 

aren't the intercooler pumps on the lsj's electric? try hooking a straight 12v source to the pump and see if it turns on.

 

Idiot ******* dealer I swear. Take it somewhere else man before you end up with a blown motor.

 

man i wouldn't drive it at all, i was just commuting to work when mine blew.

 

Mine has been eating up coolant/water from the blower fill as well. When it gets low, she runs sluggish and I get random nosing over when tromping on it. I got on it once and went to bang 3rd and she nosed over, sounded like ass, I got off the pedal REAL quick and she just felt sluggish. I opened the hood, noticed the tube was low, threw some water in there, and she drives different afterwards...Same problem??

 

your not going to get even really close to boiling temp in the intercooler. your running max 160F and typical running is 120F. THe highest I have ever seen is 178F running on a track and making a fourth gear pull running a 2.8 pully on a GM Dual pass system. lol HEAT SOAKED.

raising boiling temp is going to do nothing for loss IMO.

If you dont see leaks then I could almost guarantee it is the intake intercooler letting fluid but it is still strange since it is under boost and not vacuum when you romp on it. I would have expected it under vacuum when cruising the higway and not under a boost situation.

 

The purpose behind using dexcool in the intercooler is to protect from freezing not from boiling. However, if your IC pump is not working or you have air trapped in the system the coolant can get hot enough to boil especially if you are using just plain water.

 

Stand corrected ,it is the pressurizing of the system that raises the boiling temp.
You can make water boil at room temp in a vaccum so pressurizing the system has the reverse affect.

 

Yeah but the previous posts were referring to raising the boiling point. and even if you had air lock or if IC pump not working then there would be alot more issues. besides he is losing coolant on a regular basis.

 

No comments on if my post will be along the same lines as his issues?

 

You need to switch back to Dex-Cool to find out. Water will literally just boil away... at least that is what it did in my car. I switched to Dex-Cool... and next thing I know, my engine bay is SOAKED!

+Rep to all who even attempted to help.

BUT... if the coolant isn't moving at all... it's just sitting there... and I take off from 35... that ****'s gotta be hotter than hell by the time I hit 4th, right? Because that's right about the time it starts shooting out. Only when I've been on the throttle for a while... usually only when i make it to 4th gear.

I can see Dex-Cool being hotter than hell by then.

 

That is pretty much right. If the coolant isn't moving, it isn't being cooled. If IAT temps are 178 F with the coolant flowing correctly, then if the coolant wasn't moving at all it would continue to get hotter and never cool at all. Basically, you would have heat soak constantly. So after one 35 to 100 pull, even on stock, you would probably be close to the 200 F range. Even in normal driving, any acceleration that used boost would heat the coolant in the IC and it would have no way to cool. After a few stop lights or stop signs you could get the coolant hot enough to boil. Not to mention, if the IC pump isn't pushing coolant it also isn't pushing any air out of the system that may trapped anywhere which can create heat pockets throughout the system.

The IC coolant system only pressurizes to 5 psi so that only raises the boiling point by 10 or 15 degrees, which would be around 220 - 230 F. The boiling point of dexcool under the same conditions would be around 240 - 260 F.

 

Talked to the Service Manager at the local dealership... I went into a real technical explanation of what was happening inside my engine bay... to make a long story short, I got him to just go ahead and order me a new pump.

 

glad to hear that , i'm sure he would rather get you a new pump instead of a new motor.

 

they denied me a new pump because I hit a chunk of tire and bent the condenser and apparently the intercooler (so now it leaks) so I ordered the cobra HE and a Cobra/Lightning Intercooler pump...

 

did you mess up the heat exhanger or the condenser? I'm pretty sure the actual intercooler is inside the intake manifold... If you messed up the heat exhanger then I could see him calling a no go on a new pump under warranty, but the condenser has nothing to do with the supercharger cooling system.

 

Well the IC pump is right on the underside of the car. If you hit some tire tread on the highway you could easily damage the pump.

 

Hopefully they will have it today... if they don't have time for the install, **** it, I'll do it myself... I miss my boost.

Also, does the Cobra/Lightning pump actually flow, or pump any better than our's does?

 

not sure...whats the flow rating on our pump? I think the Cobra is rated at 6.3GPM, but I've seen one that flows like 15GPM...that might be a bit much... Should be getting most of the stuff in by next week...I'll let you know what I find out.

 

Congrats man...Turns out that my issue is air in the aftercooler after making HE adjustments.

 

Finally fixed. Bitch pulls HARD again! Traction problems again FTL!

I celebrated by driving around for many hours... and I got 2 kills.

https://www.cobaltss.net/forums//showthread.php?t=79912

 

Nice kill and glad you're running right