Honda Car Forum

Noted. Thanks for the heads up.

'Curly Q. Links' wrote:
> Jonathan Lim wrote:
>
>>Hello,
>>
>>I'm having a persistent problem with my 1990 accord headlight bulbs.
>>These bulbs have been fine for over 6 years. The other day they both
>>blew out. As soon as I replaced them the bulbs blew out again. Someone
>>suggested that it may be a problem with the ground wire. Anyone know
>>where the ground wire is? I can't seem to find it. Or any other ideas on
>>
>>what I should check next?
>
>
> =====================
>
> If you install a halogen lamp but don't tighten it in place properly, it
> won't get the cooling it requires. I kept blowing left headlamps in my
> Caravan because previous owner had lost the locking collar, which holds
> the base of the lamp intimate on the body of the lamp housing.
>
> If you've put the bulb in with the base not sitting flat against the
> mating surface, it won't dissipate heat and will burn out way too soon.
> I think there's only one way for the notch in the base to align with
> place it fits into...
>
> 'Curly'
>
> ================

True, I'm still not going to rule out grounding. The thing is, it's only
the low beam bulbs (9006) that burn out when I put them in. The accord
also has a set of high beam bulbs (9005) and they are still working
fine. If it were the voltage regulator, wouldn't these bulbs and other
eletrical components be having problems too? It seems isolated to the
low beam bulbs.

Stewart DIBBS wrote:
> "Randolph" <trash@junkmail.com> wrote in message
> news:402440A1.C8FA60AD@junkmail.com...
>
>>Perhaps your voltage regulator is broken.
>
>
> Maybe, but it may also be that there IS a ground problem, such that both H
> and L filaments are on. This overheats the bulb and soon burns it out. With
> one new bulb, test if high and low beam switches correctly.
>
> Stewart DIBBS
>
>

You have four headlights, two hi and two low, no dual filiment bulbs,
correct? Forget grounding problems, you have five seperate grounds and
only the low beams are grounded near the lights, I looked at a 1990
Accord wiring diagram.

Here in the city, I never use high beams and if you never use a bulb
it should not burn out.

Look at the light assemblies, are there any cracks or bad gasketing so
cold water can get on the bulbs. When you installed the bulbs, did you
touch the glass part of the bulbs?

If you have dual filiment headlights and you loose a ground, you end
up with three filiments in series, that is each filiment sees 4 volts
instead of 12 volts and each filiment drops to about 10% of normal
wattage. Under voltage will not burn out bulbs, only motors.

Check your voltage with the enging running, as noted in a previous
reply.

On Mon, 09 Feb 2004 18:12:29 GMT, Jonathan Lim <c3n1@hotmail.com>
wrote:

>Noted. Thanks for the heads up.
>
>'Curly Q. Links' wrote:
>> Jonathan Lim wrote:
>>
>>>Hello,
>>>
>>>I'm having a persistent problem with my 1990 accord headlight bulbs.
>>>These bulbs have been fine for over 6 years. The other day they both
>>>blew out. As soon as I replaced them the bulbs blew out again. Someone
>>>suggested that it may be a problem with the ground wire. Anyone know
>>>where the ground wire is? I can't seem to find it. Or any other ideas on
>>>
>>>what I should check next?
>>
>>
>> =====================
>>
>> If you install a halogen lamp but don't tighten it in place properly, it
>> won't get the cooling it requires. I kept blowing left headlamps in my
>> Caravan because previous owner had lost the locking collar, which holds
>> the base of the lamp intimate on the body of the lamp housing.
>>
>> If you've put the bulb in with the base not sitting flat against the
>> mating surface, it won't dissipate heat and will burn out way too soon.
>> I think there's only one way for the notch in the base to align with
>> place it fits into...
>>
>> 'Curly'
>>
>> ================