Today I was datastreaming with a scan tool at work. Here is what i saw.
outside temp 85 degrees
IAT 110 degrees
IAT2 240-250 degrees

Are stock after blower temps supposed to be so high? Those temps were idleing. I drove around and IAT went down to 100 but IAT2 stayed around 240. Anyone think im having a problem. Everything else was fine. Anyone think the intercooler dirty from all the oil could be the problem. Ive had breathers now for about 2 months but havent cleaned the intercooler yet!

 

That can't be right.
At idle, with an IAT1 of 60deg, my IAT2 was 104deg.
With the fans on (on the dyno) with an IAT1 of 56deg, the IAT2 went up to 120 on the first pull and 126 on the second.
I do have a sealed JLP Ram Air system and that was at 12lbs of boost.

 

I just verified that the intercooler water pump is working. I may just have to pull the blower tomorrow and see what goin on... and clean it anyway. Does anyone know the voltage scale that IAT2 works on?

 

Try another sensor first as it is easy to change.. Sometimes the sensor get fouled badly with oil...It is in the intake runner on the left side(passenger) of the blower.

 

I started playin with the scanner some more and found out that the scanner was giving me the wrong readings. MAC Mentor Scan tool. I inputed the vehicle as a 2000 model and got accurate voltage readings. I verified voltage readings at the sensor and everything is fine. I pulled the sensor anyways is it was oil soaked. Cleaned it off for now. Gonna get new SC bolts and gaskets and clean everything. Thanks for the input!

 

You don't need new bolts and gaskets. They're reuseable.

 

Cleaned it all out today. Used same bolts and gaskets. No problems. Not as bad as i thought it was gonna be for 32000 miles!

 

They are reusable if you don't go by the Ford manual, they are a TTY style bolt; but can be resued as long as you do not over torque them. I have resued a set and replaced a set, never had a problem with either set.

 

Quick question about this...

When I replaced my intake to a AEM brute force.... I noticed there was plenty of oil buildup from the pcv vents inside my intake.. it was a gooy oil... my truck had 48K miles on it... I too noticed that my intake #2 temp sensor was like 280 degrees with a mac obdII scanner... at idle on a 75 degree day, after I had been running a little while.... If I pull the #2 sensor and its covered in oil... should I disassemble the S/C and clean the intercooler?

if its coated in oil, then that could be why I cannot get a good charge temp?
and am only able to run 12 degrees of timing without pingin?


Thanks....

 

the mac scanner gave me false readins also. put the truck year in as a 2000 and it should give you a voltage reading for the intake temp after cooler. Use a reference chart to find out the temp. Mine on an 04 had a iat2 temp and voltage but the voltage was over 300 volts. Probably still clean though if u have fixed the oil problem.