Does anyone know if a bad EGR valve causes freekish heating issues? I have been having some wierd heating reading on my gauge and prettymuch replaced my entire cooling system to include a new temp gauge sensor. I seen SES light pop on and it read code 32 so I swaped my EGR valve out and it seemed to fix the issue.

 

Did you notice any "pinging"under low rpm/moderate load conditions?faulty
EGR can cause pinging that will increase coolant temp.

 

Im not sure what you mean by "pinging" but after the new EGR the performace of the car seemed night and day... I had no idea how important the EGR valve is. I took the car out 2-3 more times after to check the hotter than usual cooling issue and it seems perfect... I think if I still ran my stock fan switch and stat with this issue I would have blown an engine before I figured out problem was a EGR valve.

-Actually I do remember I did sort of notice a odd pinging noise once in a while at lower rpm