plow light install trouble still

[bradjh]

I still cannot figure out wiring for my plow lights, I have added a relay and I ran a 5 way flat trailer harness to carry turn signal marker a ground the power for the lights i was driving it last time it snowed on a very bumpy road and when i got to my buddies house the plow lights would not work and the relay was buzzing.. I have it all grounded to the battery i still get turn signal and marker on plow lights no head lights. relay is triggered by marker, tried replacing relay and still nothing I double and triple checked all connections everything is good any idea??

[bradjh]

ok i have the relay hooked up like this

86 from parking lights
85 ground
30 to my plow lights
and 87 is to my battery

This worked for a while until one day the lights just quit i checked all connections eveything is ok i have a 30 amp relay powering 2 plow lights ...

any thoughts?

[HenryJ]

Try one relay for each light. That will split the load if you are drawing more than the relay can handle.
Make sure you have the correct wire size used: WIRE GAUGE SELECTION TABLE
Solder and heat shrink ALL connections. Use Dielectric silicone on each terminal.