1990 GMC Sierra Back Up Lights

Whitelightning wrote:
> "Bob M" wrote in message
>
>
>> Thanks to anyone that can help. Truck is a 1990 GMC Sierra with 5.7l V8
>>and auto. The back up lights as well as the rear cargo light on the cab
>>don't work. I checked the fuse and it looked good but I changed it anyway.
>>The lights still won't work. Any ideas on what to look at next? Thanks.
>>
>> Bob
>
> Bulbs
>
> Whitelightning
>
>

Thanks. Sometimes I overlook the simple stuff thinking the problem is
more technical. In case the 2 backup bulbs and the cargo light bulb is
fine, could it be a bad or corroded plug or sensor that hooks into the
tranny? I haven't gotten under the truck yet to see if there is a
connection like this. But if there is does it run both the backup lights
and the cargo light?

Bob
 >> Stay informed about: 1990 GMC Sierra Back Up Lights 

"Bob M" wrote in message

>>
>
> Thanks. Sometimes I overlook the simple stuff thinking the problem is
> more technical. In case the 2 backup bulbs and the cargo light bulb is
> fine, could it be a bad or corroded plug or sensor that hooks into the
> tranny? I haven't gotten under the truck yet to see if there is a
> connection like this. But if there is does it run both the backup lights
> and the cargo light?
>
> Bob

I believe the reverse light switch is still part of the nuetral safety
switch located
at the base of the steering column just before it goes through the firewall.
I do not
believe there is a tie in between the cargo light and the reverse lights,
and they are
wired in seperate harnesses.

Whitelightning
 >> Stay informed about: 1990 GMC Sierra Back Up Lights 

Whitelightning wrote:

>
>
> I believe the reverse light switch is still part of the nuetral safety
> switch located
> at the base of the steering column just before it goes through the firewall.
> I do not
> believe there is a tie in between the cargo light and the reverse lights,
> and they are
> wired in seperate harnesses.
>
> Whitelightning
>
>
Ok, thanks. That helps me.

Bob
 >> Stay informed about: 1990 GMC Sierra Back Up Lights 

Did you check the strips in the taillight that connect with the lamp
sockets to the plug? I had the ground connection corrode and crack next
to the bulb socket on an 89 Sierra I use to have. I repaired it using
Solder Wick braiding an solder.

Bob M wrote:
> Thanks to anyone that can help. Truck is a 1990 GMC Sierra with 5.7l
> V8 and auto. The back up lights as well as the rear cargo light on the
> cab don't work. I checked the fuse and it looked good but I changed it
> anyway. The lights still won't work. Any ideas on what to look at next?
> Thanks.
>
> Bob
 >> Stay informed about: 1990 GMC Sierra Back Up Lights 

Ronald Thompson wrote:

> Did you check the strips in the taillight that connect with the lamp
> sockets to the plug? I had the ground connection corrode and crack next
> to the bulb socket on an 89 Sierra I use to have. I repaired it using
> Solder Wick braiding an solder.
>
> Bob M wrote:
>
>> Thanks to anyone that can help. Truck is a 1990 GMC Sierra with 5.7l
>> V8 and auto. The back up lights as well as the rear cargo light on the
>> cab don't work. I checked the fuse and it looked good but I changed it
>> anyway. The lights still won't work. Any ideas on what to look at
>> next? Thanks.
>>
>> Bob
>
>
No but I'll keep that in mind. Thanks for the reply.

Bob
 >> Stay informed about: 1990 GMC Sierra Back Up Lights 

On 2007-07-04, Bob M wrote:

First thing you should do is see if you have juice at the bulb socket, then
keep going back until the problem is reached.

--
Your aims are high, and you are capable of much.
 >> Stay informed about: 1990 GMC Sierra Back Up Lights