Welcome to the forum and site.
As to your first concern here, the broken grill plate for the speaker in the door.
Removal of the door panel itself, several screws, hiding in plain site.
There are threads here, if you look in our search box, upper right corner on the page.
A drawing or exploded parts break down showing the pieces in your door.
Several of our owners have had to remove the door panel for one reason or another.
Over heating. This is a common theme here on the forum with our cars/members.
GM designed this car to run a little hotter than normal.
SO.. having said that,... what is a normal temp range for our cars?
They vary among our members. Each car seems to have a different range.
Base level would be 190-210 or near there.
With the A/C on... the compressor strain with the fan speed might drive up your temps some?
* Note do not use full fan speed of 4. Not needed and can burn out a resistor.
I use full cold temp, with a fan speed of 2, with recirculation mode.
Cool as a cucumber in 3-4 minutes. Having the A/C on brings an extra fan speed.
After your body temp reaches it's coolness level, shutting off the A/C, reduce fan speed to 1, run on cool cabin air until
at such time your body say.. to hot, turn it back on. A/C back on, still at fan speed of 1.. 3 minutes cool enough.
Where you live, high heat/humidity, roads traveled, traffic, usage of the A/C in a Vert is... optional.
After shutting off the A/C you might see a temp rise for a short period?
Now the other thing is age here. At what mileage is the car currently at on the odo?
GM recommends to change the fluid after 5 years regardless of the mileage.
All fluids breakdown over time, use and abuse. IF you have records from the past history, then you might want to consider this.
Can be a DYI project, but there is a procedure for this, You-Tube would be a good place to start.
Dealer can do it for you, for a price.
Some owners have changed out the thermostat too when changing the fluid.
Low coolant level in the expansion tank would be an indicator maybe?
The WP issue. A known problem with this car. Expensive to replace.
Start a fund now, unless the previous owner has already done this?
Other things, hot summer temps, up hill grade climb, driving strain to the transmission can bring up engine/coolant temps.
No air flow is no air flow, so when sitting still, temps will rise some. Does the fan run on, after shut down? How long?
You also have the turbo heat to consider here too, a little extra in the engine bay maybe.
With the IC blocking some air flow to the radiator, check to make sure this area has no blockage, clean free from road trash.
I just recently did mine, removed lower panel for access.
Real deal wash, soap, brush, sponge, flush.. ran 2 degree cooler! That shot back to normal yesterday on my cruise
with higher temps climbing through the summer months.
When to be concerned. 227-252 range. Loss of fluid, puddle on ground, low coolant in expansion tank, warning in DIC.
During flat road cruising, with no stop and go traffic you should see little to no abnormal high temps, but Murphy's Law can happen here.
Last edited by LAC Sky; 06-01-2019 at 09:14 AM.
Reason: I am always editing my post...