I just replaced the thermostat and fan switch in my 1999 Honda Accord Ex today, but it's still overheating. Any suggestions?!? HELP!

 

Did you bleed the system of air via the nipple on the thermostat housing?
When/why did it start overheating in the first place?

 

There's no nipped on the thermostat housing. It started overheating when I was idling for about 30 minutes or so with the AC running. I noticed thay the passenger side fan wasn't kicking, replacing the fan switch resolved that issue.

 

*nipple* Damm auto-correct

 

Is this a J30 or F23?

 

I have NO IDEA what you're talking about! LOL! How would I find out?

 

Is it a V6 or a four banger?

 

V6 LOL! Sorry, I'm not up on all my car/Honda lingo!

 

Now that you have the fan running, check if it's still overheating.

 

I already did. I replaced the thermostat and fan switch at the same time. The top radiator hose gets hot, but the bottom radiator hose doesn't - if that's of any help.

 

did you test thermostat before installing?
if not pull it out and give it a boil on the stove to verify functionality.

 

run a compression test to see if the head is warped