Gents,

I have a 87 XJ 4.0, the four headlight wagoneer model.
A few days ago I replaced my upper headlights with new
H4 bulbs, same specs same brand.

After that when I used my lower "big" headlights, after a few minutes
all the headlights completely died. I switched the handle on the steering
columne to off and the normal lights would come up again.

But the third time I tried this, I noticed a burning smell in the interior.
I left
the big lights off. The next day the headlights would not function at all.

Now I have checked all the fuses and the bulbs, but there seems to be no
fuse for the
headlights on this model. I found a relay on the left front in the engine
compartment,
but changing this did not help.

I suspect the headlight switch to be bad, but all other functions of the
switch seem to work fine.

Can anyone please tell me if there is a headlight relay and where it is, or
might there
be another fuse which I cannot find? Please help.

Rodger

 

"news.quicknet.nl" <rs.wilsen@quicknet.nl> wrote in message
news:1067294405.497446@cache1...
:
: I suspect the headlight switch to be bad, but all other functions of the
: switch seem to work fine.
:

Grab a switch from the wrecker, if that doesn't solve it, it could be the
high beam selector.
-Brian

 

"news.quicknet.nl" <rs.wilsen@quicknet.nl> wrote in message
news:1067294405.497446@cache1...
:
: I suspect the headlight switch to be bad, but all other functions of the
: switch seem to work fine.
:

Grab a switch from the wrecker, if that doesn't solve it, it could be the
high beam selector.
-Brian

 

"news.quicknet.nl" <rs.wilsen@quicknet.nl> wrote in message
news:1067294405.497446@cache1...
:
: I suspect the headlight switch to be bad, but all other functions of the
: switch seem to work fine.
:

Grab a switch from the wrecker, if that doesn't solve it, it could be the
high beam selector.
-Brian

 

There is no headlight relay that I know of, but you 'do' need one to run
H4 bulbs or you 'will' fry the headlight switch.

The stock headlight switch can't even handle 2 H4 bulbs, let along 4 of
them.

Once you replace the headlight switch and likely the wiring harness plug
for it too, you should add a relay and just use the headlight switch for
the relay trigger. Here is a good site on wiring in a relay:

http://www.classictruckshop.com/club...osch/relay.htm

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's

"news.quicknet.nl" wrote:
>
> Gents,
>
> I have a 87 XJ 4.0, the four headlight wagoneer model.
> A few days ago I replaced my upper headlights with new
> H4 bulbs, same specs same brand.
>
> After that when I used my lower "big" headlights, after a few minutes
> all the headlights completely died. I switched the handle on the steering
> columne to off and the normal lights would come up again.
>
> But the third time I tried this, I noticed a burning smell in the interior.
> I left
> the big lights off. The next day the headlights would not function at all.
>
> Now I have checked all the fuses and the bulbs, but there seems to be no
> fuse for the
> headlights on this model. I found a relay on the left front in the engine
> compartment,
> but changing this did not help.
>
> I suspect the headlight switch to be bad, but all other functions of the
> switch seem to work fine.
>
> Can anyone please tell me if there is a headlight relay and where it is, or
> might there
> be another fuse which I cannot find? Please help.
>
> Rodger

 

There is no headlight relay that I know of, but you 'do' need one to run
H4 bulbs or you 'will' fry the headlight switch.

The stock headlight switch can't even handle 2 H4 bulbs, let along 4 of
them.

Once you replace the headlight switch and likely the wiring harness plug
for it too, you should add a relay and just use the headlight switch for
the relay trigger. Here is a good site on wiring in a relay:

http://www.classictruckshop.com/club...osch/relay.htm

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's

"news.quicknet.nl" wrote:
>
> Gents,
>
> I have a 87 XJ 4.0, the four headlight wagoneer model.
> A few days ago I replaced my upper headlights with new
> H4 bulbs, same specs same brand.
>
> After that when I used my lower "big" headlights, after a few minutes
> all the headlights completely died. I switched the handle on the steering
> columne to off and the normal lights would come up again.
>
> But the third time I tried this, I noticed a burning smell in the interior.
> I left
> the big lights off. The next day the headlights would not function at all.
>
> Now I have checked all the fuses and the bulbs, but there seems to be no
> fuse for the
> headlights on this model. I found a relay on the left front in the engine
> compartment,
> but changing this did not help.
>
> I suspect the headlight switch to be bad, but all other functions of the
> switch seem to work fine.
>
> Can anyone please tell me if there is a headlight relay and where it is, or
> might there
> be another fuse which I cannot find? Please help.
>
> Rodger

 

There is no headlight relay that I know of, but you 'do' need one to run
H4 bulbs or you 'will' fry the headlight switch.

The stock headlight switch can't even handle 2 H4 bulbs, let along 4 of
them.

Once you replace the headlight switch and likely the wiring harness plug
for it too, you should add a relay and just use the headlight switch for
the relay trigger. Here is a good site on wiring in a relay:

http://www.classictruckshop.com/club...osch/relay.htm

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's

"news.quicknet.nl" wrote:
>
> Gents,
>
> I have a 87 XJ 4.0, the four headlight wagoneer model.
> A few days ago I replaced my upper headlights with new
> H4 bulbs, same specs same brand.
>
> After that when I used my lower "big" headlights, after a few minutes
> all the headlights completely died. I switched the handle on the steering
> columne to off and the normal lights would come up again.
>
> But the third time I tried this, I noticed a burning smell in the interior.
> I left
> the big lights off. The next day the headlights would not function at all.
>
> Now I have checked all the fuses and the bulbs, but there seems to be no
> fuse for the
> headlights on this model. I found a relay on the left front in the engine
> compartment,
> but changing this did not help.
>
> I suspect the headlight switch to be bad, but all other functions of the
> switch seem to work fine.
>
> Can anyone please tell me if there is a headlight relay and where it is, or
> might there
> be another fuse which I cannot find? Please help.
>
> Rodger