Headlight going POOF

[sermis]

My passenger headlight keeps going out. Any ideas on what can cause it?
I am up to five or six now. Nothing seams wrong in the wiring that I can find.

 

[jbayer]

Check/clean that headlight ground.

 

[Tornadogt]

Grounds, grounds and more grounds. 95% of electrical gremlins are ground related. the best path back to the Negative on the battery is a copper wire. Anything other than a copper wire the grounds will search for the path of least resistance and most of those will create heat and amps witch is what causes things to fail.. Try running a temporary direct ground from the headlight to the battery, if it solves the problem work over the factory ground until you find the problem.

 

[sermis]

Where do the headlights ground?

 

[infidel got me]

Grounds are behind the metal panels inside hood when open. looking down while hood is open, the panel is on the outter most part of hood in line with the front reflectors. One panel has 3 7/16 bolts -- the other has 4 7/16 bolts. Grounds are behind these panels.

 

[jbayer]

Three wires to each headlight. #17, #18, and #91. #91 are the grounds. Separate ground for each headlight.

 

[gimpyrobb]

Same truck your having issues with the glow plugs? I bet its related.

 

[sermis]

No it's the other truck. Only issue it seams to have is headlight.

 

[gimpyrobb]

How about the the vibration isolators on the housing?

 

[Jakob1944]

Switch vendors.....excess vibration.....insufficent ground......I would put the "New" light on the other side to see if it in an inferior product that they have been selling you......

 

[infidel got me]

The truck may have, what doctors call, the Sammy Davis syndrome or in some cases Pop eye eytis. This is when one becomes weaker than the other and then simply goes poof. baaahhhhhaaaaa Check your grounds

 

[Retiredwarhorses]

Switch vendors.....excess vibration.....insufficent ground......I would put the "New" light on the other side to see if it in an inferior product that they have been selling you......

this....I see a lot of Chinese knock offs now on headlights. The buckets are metric.
You will know if it's NOS, it's the expensive one....

 

[Jakob1944]

this....I see a lot of Chinese knock offs now on headlights. The buckets are metric.
You will know if it's NOS, it's the expensive one....

55 thousand running around Ft Hood and one screwdriver......LOL

 

[sermis]

Well I don't think I have Chinese knock off unless the military has started buying them.