Head gasket at 74,000.
Have had continued electrical issues with my 1994 s10 Tahoe blazer including power seat, hatch, and locks not working. Most recently power seats, locks, and 4 wheel drive switch. When I depress the 4 wheel drive switch I hear a loud clicking noise behind the glove box. I have messed with fuses, etc. without success. Still working on this problem and looking for help. Any input appreciated.
The vehicle has been good and fairly reliable. although I have not put many miles on it myself.
The clicking noise is the relays on your switch panel selecting the proper position for your electronic shift motor on the transfer case. This unit is mounted on your computer up under the passenger side of the glove box and is normal. I have had mine since new, and an 83 since it was new, I only wish I had gotten the manual transfer so I could flat tow it.
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