Overheating issue!

[njc1064]

Okay, so, the car seems to be overheating a bit. here is what i have done in an effort to combat this:

*Added mr. gasket 10'' slim fan
*changed coolant temp sensor
*flushed rad/ added new 50/50 mix of coolant
*made sure fans both work; new fans runs all the time and stock ran fan runs after 210*
*Compression tested: 178,178,178,168. This was done on the engine which was brought to operating temperature.

So, any thoughts? Can i eliminate the head gasket as an issue?

 

[jrohner]

Can i eliminate the head gasket as an issue?

No. You didn't do anything to diagnose the head gasket. Just because you have good compression doesn't mean your headgasket is good. If you let the engine cool off and then take the cap off and there's a lot of air in the cooling system, your head gasket is probably shot (or just the radiator cap or leaking somewhere else). Usually you can tell by just squeezing the top radiator hose whether air is in there or not.

Also, you didn't list a new radiator cap, that would be the first thing to get. Also, did you take the radiator out and clean out the fins, as well as clear out the fins on the FMIC and condenser?

 

[njc1064]

how is it possible to see air bubbles on a mildly cool car? wouldnt the only way to see air bubbles be with the cap off and the car running? Also, isnt a compression test one of the first and most basic steps in an effort to diagnose a possible head gasket problem? I did not clean the rad or intercooler fins, but, i will go down to the garage and give that a whirl...

 

[AWD_Hybrid]

Thermostat sticking ? Common fault.
Cheers !

 

[95blackGsTurbo]

What temps. are you reaching? Are you logging high temps. or is the factory gauge starting to creep? The gauge won't move off of normal until about 225-230 is what I have found so it could be a little more serious of an overheating than you thought.

 

[z24frank]

I thought the first thing you do is check or change the thermostat when you are having overheating issues?