Headlight Problem

[chevyman350_82]

On my 81 c-30 the dim lights work just fine but when brights are on sometimes they flash on and off like not a good connection but as soon as you but it on dim again everything works fine I have looked for ground problems and didnt know if this has happen to anyone or can it be just the dimmer switch?

[zieg85]

On a 1982 I had did the same.  I replaced the dimmer switch and the problem was gone.  I found a windshield leak corroded the plug and switch.  I later put a 1984 tilt column in it and rewired the dimmer switch to the column.

[Donut]

I'd look at the dimmer switch first, but don't rule out a busted wire or anything else.  Mine turned out to be the bulkhead connector. (where the harness passes through the firewall)

[Irish_Alley]

do both lights flash or just one, do they flash when you hit a bump or when ever it feels like it. iv had one flash due to the wires at the bulb being bad

[Blazin]

X2 on the dimmer switch.

[chevyman350_82]

K. Thanks and yea its both headlights that do it ill go get dimmer switch and see if that works.