Overheating C4
Thread Starter
Racer
Joined: Apr 2017
Posts: 337
Likes: 26
From: San Antonio, TX
Checked out that radiator, it's not gunked up. Thermostat seems to be working fine, had a mechanic buddy of mine test it while I was at work, even took the temp of the upper and lower hoses and said it was working fine. Both fans came on, and she never went above 235 for him, even parked and idling. He DID say that she has a high idle (1100RPMS in park), but said the IVAC may be stuck open a little. I'm starting to think this is related to the starting issue I've been having, a clogged fuel filter maybe?
Thread Starter
Racer
Joined: Apr 2017
Posts: 337
Likes: 26
From: San Antonio, TX
Finishing off the old threads to make sure they actually have an ending. I ended up replacing the water pump when I replaced my opti, replaced my rad hoses and thermostat too, and flushed the system a couple more times. Haven't had an issue with overheating since then, though temps will still get up to 230-235 in traffic - since the car is now 24, I just figure that's the radiator. Otherwise, haven't had a problem with overheating since. Sorry, I know that's not very specific, but I wanted to make sure I came back and gave the thread an ending. I'm assuming the overheating was related to the opti being bad, as it appears that this can sometimes happen?
Instructor
Joined: Aug 2016
Posts: 240
Likes: 51
From: Putnam County NY
Finishing off the old threads to make sure they actually have an ending. I ended up replacing the water pump when I replaced my opti, replaced my rad hoses and thermostat too, and flushed the system a couple more times. Haven't had an issue with overheating since then, though temps will still get up to 230-235 in traffic - since the car is now 24, I just figure that's the radiator. Otherwise, haven't had a problem with overheating since. Sorry, I know that's not very specific, but I wanted to make sure I came back and gave the thread an ending. I'm assuming the overheating was related to the opti being bad, as it appears that this can sometimes happen?
Oh, and don't forget to flush your fluids regularly.
Team Owner
Joined: Jul 2004
Posts: 28,502
Likes: 3,302
From: Hartford WI
Finishing off the old threads to make sure they actually have an ending. I ended up replacing the water pump when I replaced my opti, replaced my rad hoses and thermostat too, and flushed the system a couple more times. Haven't had an issue with overheating since then, though temps will still get up to 230-235 in traffic - since the car is now 24, I just figure that's the radiator. Otherwise, haven't had a problem with overheating since. Sorry, I know that's not very specific, but I wanted to make sure I came back and gave the thread an ending. I'm assuming the overheating was related to the opti being bad, as it appears that this can sometimes happen?
