90 Crown vic , Horn Relay , Horn Issues - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars

90capeLtd · 11-21-2010, 10:15

hi all , been having trouble with my horn for months now , will work on and off but never when i need it ! under the hood theres a little black box im guessing is the relay for the horn , i can hear it clicking when ever i hit the horn button but nothing from the horn it self . any ideas what it could be ?

**tbird100636** · 11-21-2010, 16:16

Quote:

Originally Posted by 90capeLtd

hi all , been having trouble with my horn for months now , will work on and off but never when i need it ! under the hood theres a little black box im guessing is the relay for the horn , i can hear it clicking when ever i hit the horn button but nothing from the horn it self . any ideas what it could be ?

Did the horns seem weak when they worked??? Find the horns and using a test light hooked to ground, checked for power at the horns when operating the switches. If it is present on both horn wires next check the ground side. Clip the test light to power. Touch the test light to the metal body or bracket of horns. It should light. If the test light illuminates both times for both horns then you have bad horns.

90capeLtd · 11-21-2010, 16:22

ok will do , the horns didnt seem weak when they did work. thanks for the tips though

ellis