timing is off or firing order is off
Could be in need of a tune up.
Worn brake pads can cause the brake light to blink on the dash in a 1993 GMC Sierra 1500. This can also be caused by a faulty light.
YES. They are the same.
Dark Justice - 1991 Backfire - 3.9 was released on: USA: 9 March 1993
You could have a bad exhaust valve
try some dry gas
what to do if my reverse lights on my 1993 gmc 1500 truck wont work
YES.
Water.
Plug might be cracked .And might be arching
Yes it will fit right on.
A 1993 Chevy does not have a carburetor, it is fuel injected.