Foglights out & no. 18 fuse keeps blowing

[NavySeabee]

My foglights went out today at the same time. I checked the compartment fuses and #18 was bad, replaced it with a new one, turned the foglights on, went to the front of the car to check lights, nothing. Took the #18 out to find it was burnt. Even tried a 20 in there, that blew also.

Everything else seems fine. I have FBMs foglight setup for a couple of months now without any problem.

Thanks in advance!

[drewb457]

seems to be a short in the circuit. probably a short to ground between the fuse box and the foglights. the short to ground causes the resistance in the circuit to go down, and current to go up, blowing the fuse

[fastblackmerc]

The ONE thing you don't want to do is use a bigger fuse. You could cause an electrical fire.

I'd disconnect both foglights at the round factory connector, replace the fuse with the correct one, turn on the foglights, connect one side to see if it blows the fuse, if not connect the other side. Whichever side blows the fuse check that side... all the connectors, harnesses, etc.

[NavySeabee]

I'd disconnect both foglights at the round factory connector, replace the fuse with the correct one, turn on the foglights, connect one side to see if it blows the fuse, if not connect the other side. Whichever side blows the fuse check that side... all the connectors, harnesses, etc.

I'll try that in the AM. Thanks!

[NavySeabee]

Thanks for your help Drewb457 & FBM. Turned out to be the driver's side connection to the ballast. Got wet inside, most likely at the car wash they may have shot high pressure water to clean the wheel wells. I didn't have them mounted in the greatest place either. Working again. ☮

[fastblackmerc]

Glad you found it and all is well!