--
http://desertphile.org
Desertphile's Desert Soliloquy. WARNING: view with plenty of water
"Why aren't resurrections from the dead noteworthy?" -- Jim Rutz
> The rear right turn signal on my 1997 Tahoe seems to have quit
> working, darn it: the front lamp works. I replaced the rear lamp
> and it still does not work. Would Chevy use a different fuse for
> the front than the rear?
No.
The plug is very susceptible to getting just enough wear that it does
not make contact, even with a new bulb. I've had to "adjust" the inside
of the socket contacts enough that the bulb makes contact again several
times on mine.
sticks
Use a GM factory wiring diagram (helminc.com) and a multimeter for testing
the wiring. Otherwise you are just guessing. The multimeter allows you to
"see" what is going on with the wiring.
Thank you: I'll put a volt meter on the plug's contacts and make
sure there's current, and if I see current I'll pry the contacts
out a little. The light stopped working during a snow storm at
Flagstaff--- when I needed it the most, darn it.
A voltmeter would measure voltage. And you would want to set a "multimeter"
to DC voltage and a setting like 20. And be sure to have your right blinker
on, then you will see numbers flash on the screen of the meter if the wiring
to the light socket is good.
"Multimeters" can measure AC volts like for a home, DC volts like for a
car... BUT they can also measure amperage and ohms...
Amps: If you have the meter set to amps or amperage or A, this would be like
a direct short between the two contacts in the bulb socket! This could blow
the fuse in the car and there is also a fuse in the meter which would blow.
Ohms: If you have the meter set to ohms, this could wreck the meter as well.
Ohms is used for "continuity testing". Set the meter to ohms, then touch the
two test leads together and the meter display will show 0 or close to 0.
This means you have continuity. More on continuity testing...
http://www.dinosaurelectronics.com/Test_Fuse.htm
How to use a multimeter...
http://www.google.com/search?hl=en&safe=off&q=how+to+use+a+multimeter+on+a+car&aq=0&oq=how+to+use+a+multimeter&aqi=g10
Another option is to use a test probe lamp. Some digital mutl-meters
do not respond quick enough to display a momentary change in voltage,
and it is flat out easier to see the test lamp flashing on and off.
Just make sure that you actually have good contact with the "ground".
As a test reference, you can unplug the parking lamp and turn the
headlight selector to on, and use that lamp post as a test point
to verify you are completing the circuit. While having the blinker
on, too, you then switch to the blinker's lamp post without moving
the test lead that you have connected to ground.
>"Desertphile" wrote in message
>> The rear right turn signal on my 1997 Tahoe seems to have quit
>> working, darn it: the front lamp works. I replaced the rear lamp
>> and it still does not work. Would Chevy use a different fuse for
>> the front than the rear?
>>
I've had the same thing happen on my 99 Tahoe. I cleaned the contacts,
adjusted the contact prongs and replaced all the bulbs. Still only
worked intermittently. Finally went to the junkyard and got another
used one for $20 and now good as new. Was told that sometimes the unit
just goes bad.
-Tony
> The rear right turn signal on my 1997 Tahoe seems to have quit
> working, darn it: the front lamp works. I replaced the rear lamp
> and it still does not work. Would Chevy use a different fuse for
> the front than the rear?
Ther solution to the problem was humorous and annoying: I read the
user's guide incorrectly, and replaced the wrong light bulb. It
sucks being this stupid.
> Ther solution to the problem was humorous and annoying: I read the
> user's guide incorrectly, and replaced the wrong light bulb. It
> sucks being this stupid.
Ouch, that one has to hurt. I bet it sure was nice honing your skills.
:)