"A thermo switch sometimes called a fan switch is a temperature sensor. Usually close to the radiator in your vehicle engine this device is the one that switches on the fan as soon as the engine/ radiator reaches a set temperature." - www.autosensors.co.uk
I can't believe it was staring us in the face the entire time. I had no idea about thermo switches until that day but why didn't I check the fan? We tested it and confirmed that the right radiator fan really wasn't turning on. A total facepalm moment.
So anyway, I was surprised to find out how easy it is to replace a thermo switch so I went ahead and tried it myself. Didn't have my nails done yet so it's perfect timing for a DIY session. :)
WHAT YOU NEED:
- A brand new thermo switch (of course)
- 24-inch open wrench
- A glass of soda and chips to reward yourself when you're done.
Step 1. In a Honda Accord, the thermo switch is right beside the air intake as seen here where the cute little pink arrow is pointing. First step is to remove that socket that's connected to the radiator fan.
Step 2. Whip out your 24-inch wrench and start working it loose. If you notice I removed the air intake assembly so I could get more access to it. Totally your call if you want to remove yours.
Step 3. Aaand it's out! Take the time to appreciate it's beauty. Or in my case, cuss on it like crazy.
|This is how it looks like with the thermo switch removed. You can see the housing filled with water because it monitors the water temperature in the engine.|
Step 4. Bust out your new thermo switch and put it in there. Make sure it's nice and snug.
Step 6. Sit back and get that bag of chips and soda. Good job, you!
After replacing the thermo switch, the right radiator fan was finally turning on at the right temp. No wonder I was overheating. With that busted thermo switch my radiator fan won't turn on. Hence, the overheating. Ace now has a healthy cooling system! Yey!
Mystery. Freaking. Solved. :)