My check engine light is on. Shop failed the car for NY state inspection. Says I have a bad coolant fan relay. Where would this relay be located?
Your Monte Carlo has two separate fuse blocks. One inside the cabin of the car and one under the hood. If you pop your hood, you should see something which looks like this:
In the picture, the relays are going to be under the left side panel. They are the three which are lined up on the right side of that block (this is relative to the picture ... orient the picture to your fuse block in car). One of those relays is going to be bad. It should be a square block which is either grey or black. When you pull it out, it should have four tangs on the underside which plugs into the block.