I have a 1998 GMC Jimmy SLT and the flasher wont stop making the clicking noise. all the bulbs in the truck work but when im not on the brakes and just driving, you hear the noise the turning signals make but they are not on. What could this be?
Had same problem on fathers 98' Jimmy SLT. There is a $300 computer under the dash that controls that among other things (fuel gauge actually started to work after replacement too) which after replacement everything worked fine. Sorry i can't remember the actual part number; just google the problem and you can probably find the problem.
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There's a turn signal module that creates the familiar click noise as it charges and discharges. You'll need to locate it and replace it. This is definitely the problem if neither the right nor left signals work but the flashers do.
That should be the part. If you already did this, it could be a wiring problem Does it only happen to one bulb? It's possible you have the wrong bulbs in or they are two filament bulbs and one filament has burned out as well.
This may be an issue with the flasher relay or the multifunction/turnsignal switch which should also include the hazard switch.Try wiggling the turn signal switch and or the hazard flasher button when this occurs to see if it will stop.If it does the issue is most likely in the switch.
Are you sure the right side bulbs all flash? You say you replaced all the bulbs? Why would you replace bulbs that were working? Did you have this problem before you replaced the bulbs, or after. The hazard flasher is down under the dash, left side, turn the signals on and follow the clicking noise.The hazard flasher and the turn signal flasher should be near each other, and are interchangeable. If it clicks fast, a bulb or a bad socket is usually the cause. These trucks have a lot of problems with the tail light circuit boards.
I have a 1998 GMC Jimmy SLT with same exact problem. I just determined exactly what it is today.
Here is what you should do:
1) Open glove box
2) Notice the u-shape mechanism that prevents the glove box from folding all the way down. (located near top left corner of OPEN glove box
3) Empty contents of glove box and then push up on U-shape and open glove box so that it hangs freely
4) Notice the wiring harness with a bolt in middle of it (located behind glove box)
5) To the right of the wiring harness is a small black box with a zip tie over it. This is the source of your problem. Just slide the zip tie to the right so that the box can then be pulled out.
This is your combination flasher for turn and hazard signals. My signals still worked while this annoying little thing kept clicking. The model # is GM11516051. You can find one on e-bay for at least 1/2 the price of the dealer's.
I had same problem. You need to change the combo signal switch. I did find a sneeky way to do it without taking off steering wheel & air bag. There are two torx screws holing it on. The one in the front of switch is easy to get to. The other one toward the left under steering wheel is the pain. Get the proper torx bit, the bit should be about 1 in long. Put just the bit in the screw and use a quarter inch wrench to loosen it. This should save you about 1 hr & alot of work. Dont forget to remove battery cables first when working around the air bag (yellow wire)
There are 2 common things that cause this. 1. the hazzard flasher is faulty. the hazzard button and the turn signal flasher are all in one. Sometimes pushing the hazzard button in slightly will get the noise to happen, and is an indication it is faulty. 2. The turn signal switch in the steering column is bad. Turning the turn signal from left to right- very fast and harshly, will sometimes clear it up for awhile. Tech JK --------------