2006 Aveo- Does a replacement 20 psi radiator cap hurt the system if the original was 17 psi?

10

Asked by Mar 29, 2016 at 12:41 PM about the 2006 Chevrolet Aveo LS

Question type: Maintenance & Repair

I want to replace the cap, but I can only find 20 psi caps available

6 Answers

5,065

nope...

1 out of 1 people think this is helpful.
5,065

the important gig will be the thermostat...be sure a 295 fresh one has been installed...the cap pressure of 20 is just fine~

10

Thanks

1 out of 1 people think this is helpful.
89,035

It appears that it is OEM pressures, I agree that 20 psi it high but engineers do crazy things these days, it possibly due to the fact that the cooling system is so small they didn't want it to boil out the coolant so they raised the pressures to make boiling harder to to do. see chart.

Best Answer
10

I have a 2004 Aveo 5 and as far as I can see the only cap is on the coolant res it does not have a radiator cap persay

1 out of 1 people think this is helpful.
5,065

looks like a conventional system...cap and reservoir....be sure the reservoir is to "full cold" when done~ https://www.google.com/search? q=2004+Aveo+5++radiator+cap&biw=1164&bih=580&source=lnm s&tbm=isch&sa=X&ved=0ahUKEwjIpKji4sLSAhVG2IMKHfBnDcQ Q_AUIBygC#imgrc=I2Dt0vncOREPfM:

1 out of 1 people think this is helpful.

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