[xj40] indicator shows blown bulb...all bulbs are fine

i changed all the bulbs figuring they were all about the same
age…the indicator still shows a bad bulb , but they are all new
and working fine…any ideas…thanks , deziner–
deziner
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In reply to a message from deziner sent Tue 28 Mar 2006:

You may want to check the dummy resistor in the connectors for the
front fog lamps. It’s a yellow plug behind the spoiler under the
front bumper. The leads may be corroded through.–
The original message included these comments:

I changed all the bulbs figuring they were all about the same
age…the indicator still shows a bad bulb , but they are all new
and working fine…any ideas…thanks , deziner


Pete 70 XKE (193K) 88 XJ6 (233K) 88 XJ6 (217K) 60 Mini
Severna park, Maryland, United States
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In reply to a message from deziner sent Tue 28 Mar 2006:

Did you change both of the dual stop light / turn signal
bulbs in the rear light cluster?

On non-Federal cars they have individual bulbs each serving
one of those lights but on Federal cars they are dual and it
is often difficult to tell when one of the bulbs is out
because the light still works.

Oh, and don’t forget the license plate lights!–
The original message included these comments:

I changed all the bulbs figuring they were all about the same
age…the indicator still shows a bad bulb , but they are all new
and working fine…any ideas…thanks , deziner


Bryan N, '91 Sovereign 4.0 L, (RHD)
Cambridge, United Kingdom
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In reply to a message from deziner sent Tue 28 Mar 2006:

You’d probably be best to thoroughly clean the ‘‘corrosion’’ from the
bulb sockets and then giving them a coating of dielectric grease.
The corrosion is sometimes hard to see and get to: I resorted to
tiny strips of glass paper bent over the end of a skinny
screwdriver’s blade to get right in there.–
The original message included these comments:

I changed all the bulbs figuring they were all about the same
age…the indicator still shows a bad bulb , but they are all new
and working fine…any ideas…thanks , deziner


JagFab, 1988 JaguarSport XJR 3.6 (RHD)
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In reply to a message from Bryan N sent Tue 28 Mar 2006:

also make sure both high and low headlight filaments work and don’t
forget about the bulbs in the 3rd brake light on the rear parcel
shelf and also the fog lights in front and rear…lots of bulbs
are being monitored…–
Cliff - '93 XJ40 Sovereign (4.0L)
Lancaster/South Carolina, United States
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uh uh
Clean all electrical contacts with electrical contact cleaner including
bulb sockets, especially bulb sockets. Coat with dielectric grease
[bulb grease on bulbs]
Usually works unless there are some other corroded contacts including
those on fuses.
Do a check of the archives using corroded, bulbs and the the like
Jay 90 VDP Majestic
deziner wrote:

i changed all the bulbs figuring they were all about the same
age…the indicator still shows a bad bulb , but they are all new
and working fine…any ideas…thanks , deziner

deziner
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True, true - except for the 3rd brake light. That is not monitored.

David Hurlston
ViaData LP-----Original Message-----
also make sure both high and low headlight filaments work and don’t
forget about the bulbs in the 3rd brake light on the rear parcel
shelf and also the fog lights in front and rear…lots of bulbs
are being monitored…

Visit the Jag Lovers homepage at http://www.jag-lovers.org for exciting services and resources including Photo Albums, Event Diary / Calendar, On Line Books and more !