Paulyy

Was driving home at night, when i pulled up in my garage i noticed the right side of my lights including the parker and foglight was dimmer. when i turn the foglights off the headlights slightly even up.

It's never happend before.

Note: I have an extra ground to the headlights from the engine.

Another note: when i put my engine back in the car last year, i had an issue with my headlights not turning on, but they finally turned on by the end of the day.

My grounds are cleaned.. i can go clean them again.

Any clues?

Thanks!

plumbum

I would check the connections and voltage getting to the lights as well as resistance of any ground wires...the ground might be clean but corrosion along the wire might cause an issue.

william_b_noble

measure the voltages and find th e problem. to measure ground losses, connect minus to the battery negative post and measure along the way. it is probably corrosion somewhere but I have also had a headlight switch (on my 356) overheat causing some odd problems

Paulyy

Thanks for the tips. I'll have a look when i have a chance to

Travis - sflraver

You should have a separate ground to the frame at each headlight. They use little loop connectors which like to build up resistance since they are not soldered, only crimped. I would clean these and maybe even install new connectors to the stock wiring.

Paulyy

Thanks Travis! I'll try that too!

Paulyy

Didn't touch them yet. But worked fine today.

HMMM

grapedog

With all that headlight up/down activity, the wiring to lamp connector tends to get brittle and break slowly over time. I wonder if your issues are with partially broken conductors, maybe the ground wire or others? It's an easy weekend fix to cut the wiring back at the non-moving part of the wiring harness, splicing in new wire to the headlight connector. You can test the theory by turning on your lights in the garage and wiggling the wiring behind the headlight assembly by hand.

Paulyy

Another one to add to the to-do list. Thanks!