roverz72

hi, can anyone solve my problem ? my passenger side headlight as gone dim, i changed the bulb (h4 60/55w 12v) but it is still the same , it has got me stumped....can anyone help .......thanks mick

dunx

iTrader: (3)

Fuse box near the battery has fuses for headlight bulbs, check in there !

HTH

DunxC

Boro

iTrader: (1)

Might be worth checking the voltage.

Apple

or if you've a bad earth connection to a bulb - is the light on the other side brighter?

roverz72

i have checked fuses thanks anyway ..... mick

roverz72

yes the light is brighter on the other headlight, i will check for bad earth .....thanks

Chelspeed

If Alcazar was still around he could have answered this straight away but Bob'5 has had him banned.

Few things to try.

Swop the bulbs side to side. If the fault moves it's a bulb issue, if the fault stays on the same side it's a wiring issue. As you've tried two bulbs this is unlikely to help but simple to do so a sensible first step.

The connectors onto the bulb are a bit lightweight and when the terminals relax the connection onto the bulb is high resistant, then they get hot due to the high resistance, then the heat means they relax more etc etc. Clean the metal contacts in the connectors with emery paper or a file, nip them with a pair of pliers to close them up a bit and restore a good contact then grease with vaseline so they don't corrode again.

There's only one fuse for both headlights so it can't be a fuse issue.

Try a temporary earth direct from the battery -ve to the bulb. If that restres the brightness then you have a bad earth. Find the nearest place where a number of black wires are bolted to the body, just behind the headlights up on the inner wing for headlights I think. Undo the bolt, clean the ring terminals and the body work where it attaches to bright clean metal, grease with vaseline and reattach.

Try a temporary 12V supply direct from battery +ve to the bulb. If that restores the brigthness then you have a bad connection somewhere in the loom.