Grand Prix Running Hot

[Hynzie]

Sorry I figured he might of got it fixed in hope of an answer back, its just such an identical problem to mine

Coolant level is good, I have bled the system, but not with the funnel system,

my original symptom was a bad LIM gasket, which led to
new plugs, new wires, new LIM gaskets, GM sure fix upper intake kit, replaced the egr pipe in the LIM, new MAF, IAC, ECT , TSTAT, fuel injector o-rings, coolant elbows in idle, Throttle body Clean

I have a code for a EGR stuck open or closed, going to replace that,

the egr hole seemed alright, nothing I remember sticking out, but the pipe going back in got kinked a bit going back in (the part of the pipe that going into the LIM)

As of now I am going to replace the EGR, and the one pipe, replace TSTAT and ECT with AC Delco parts and bleed system again with funnel

[danielsatur]

Check all relays for the coolant fans, the PCU will trigger one of them under a certain condition to give a battery to the coolant fans.

The PCU will control the low speed coolant fan, high coolant speed fan, HVAC cool max, and engine off.

Low speed = 223F
High speed = 230F
HVAC = High cool max
Engine off = 284F

[Hynzie]

The Coolant fans turn on, i have swapped relays and checked fuses, the high speed comes on 2 bars from red, which from what i read I guess is accurate, AC now is not turning on the fans though, it will drive for hours 2 bars from red, never over heat, but so close to that red, never ran up there before

[danielsatur]

Doe's the HVAC high heat work?
Doe's it only over heat with the air cond on high max cool?
Doe's the coolant fans work with engine off @ 284F ?
Is your new ECT sensor a AC Delco? Yes

What controls or sensors tell the coolant fans to turn on high max with HVAC on high max cool?
PCU/relay/ sensor?
Air cond pressure switch!

Consider getting a Non-Contact infrared thermometer with laser targeting to check temps @ Amazon.com for $42.00

[Hynzie]

Not sure if the heat works, I meant to try that today but didn`t about that,

Overheat, it never goes to red, only close to it, and when you say high max cool, I have digital climate control, but on the coldest temp its usually set, and no it doesn`t seem to be the culprit

have not tried them off, but if I converted that right thats about over 130 celsius , my car doesn`t go that hot,

New ECT wasnt AC Delco

I changed nothing today, and i noticed when i started it the ac turned the fans on, unlike yesterday, and it ran cooler all day, around 106 Celsius.. so.. 220-230 F not the first time for this to happen