hey guys i have a 2006 tc with a trd supercharger. recently i did a coolant flush (using generic coolant) and changed the plugs. soon after i started noticing that under heat soak like on the highway my car will start to overheat to about 220F (just above 3/4) mark and will go back down and come back up depending on driving. Only way to keep it at normal temp is to put the heat on and draw the coolant into the heater core. I thought it was possibly air in the cooling system so i tried to bleed it and i think i got all the air out but its still over heating. any ideas?

 

bump any help?

 

bad water pump or thermostat.

 

Know of a good way to test the water pump

 

put a new one on it and see if your problem goes away sorry i had to maybe this will help

 

Unless you want to get an intercooler (pricey), Ive got a great solution for you......this is the set-up that I run in mine:

1) Get a Mishimoto Radiator (much better cooling capacity/efficiency), Mishimoto Electric Fan Shroud, Mishimoto Hoses, and Mishimoto Thermostat (will get the coolant flowing at a lower temp). You can find these things here:

http://www.amazon.com/s/ref=nb_sb_no...tc%20mishimoto

2) (This is the most important) Evans NPG-C Coolant......this is a highly advance water-less coolant that is way more efficient at keeping the engine cool than regular coolant:

http://www.amazon.com/s/ref=nb_sb_no...vans%20npg%20c

More Info:
http://www.evanscooling.com/products...ts/automotive/

 

Btw there isn't necessarily anything wrong with your water pump or thermostat.......the problem is that you are running forced induction in the heat of summer with no intercooler..... we supercharger guys get away with not having an intercooler because we run relatively low boost, but combine the heat of summer with mildly spirited driving and you've got a recipe for failure on an inefficient cooling system..... if you don't upgrade the radiator, at least upgrade to the EVANS NPG-C coolant, it will make a world of difference

 

Thanks for everyone's help... I ended up replacing the thermostat, radiator cap and did a coolant flush under vacuum to make sure I had no air pockets and now my car runs at normal operating temps even in heat soak and ac on lol

 

Awesome, glad it worked out for ya, but IMHO you might want to upgrade at to at least the Evans coolant at some point if you are running forced induction in the heat

 

An intercooler doesn't affect engine temperature. If anything an intercooler will heat your engine up by giving it more power.

The amount of heat put into your engine by an intercooler or turbo is not significant compared to the heat of combustion.

 

Hahaha.....sorry man, not to be rude, but are you trying to be a troll? First off, intercoolers do NOT give a car more power, they simply make it safer to run more power by COOLING THE COMPRESSED AIR THAT GOES INTO THE ENGINE. In fact, if you were to add an intercooler system to the supercharger set-up, you would actually lose power from the slight drop in boost over a more complicated system.

Second.....well there really is no second point, except let me leave this link to a Popular Mechanics article explaining how an intercooler works. The SINGULAR FUNCTION of an intercooler is to cool compressed air going back into the engine. I normally don't call people out for anything here on the forums, because weve all been there, and we are all trying to learn more as car enthusiasts.....but when someone starts throwing terms like "heat of combustion" around saying an intercooler will heat up your system.....well Ive got to shoot you down. However, if you in fact already know this and are just attempting to be a troll, then well played, sir, you got me.:

Btw this is how an intercooler works, it cools things lol:

http://www.popularmechanics.com/cars...ercooler-works

 

Can you describe what a "coolant flush under vacuum" is?

Thanks
Tam in Tampa

 

Intercoolers increase power by cooling the intake charge of air - the cooler the intake charge the more boost you can run before getting ping or preignition.

http://www.superchargersonline.com/i...age=page&id=46

When supercharging or turbocharging, the limit to the amount of power you can make is the point that the engine pings/detonates which will quickly melt a piston or ring.

Intercoolers allow you to run more boost without engine ruining detonation, and hence get more power, make more heat, and put more of a load on your car's coolant system.

I am with the first poster - intercoolers do not cool an engine in any significant way. What intercoolers do is allow you to run more boost, burn more gasoline, make more power, create more heat for your engine to deal with, and further increase your need to upgrade your car's coolant system.

 

I thought people bought them just to look cool.

 

Ha! You could say that an intercooler 'cools' the driver!

Sent from my SCH-I535 using Tapatalk

 

At Service Shops they have a machine which uses vacuum to suck all the old coolant out of the system, then refills the system with new coolant, while still under a sealed system.

Thank you,
Irving