It is located right above the starter for a 5.7l V8, not sure for the 4.3 or 5.0, probably the same place
it's located in the rear of the transfer case
It is screewed into the passenger side of the engine, just in front of the starter.
Location of knock sensor 1991 GM sierra 350 2500?
There is no "knock sensor" on a 4.0L engine
In the fuel tank
There is'nt one on the guage cluster but there is on the motor up by the thermostat housing
Yes, yes it is! I know i have a 1991 Chevy K1500 with one of them in it.
YES, It will bolt right up with NO modifying.
Make SURE the engine is COLD. Then unscrew the old sensor and install the new one. Antifreeze will leak out of the engine so be quit when replacing it.
The function of the knock sensor ob a sensor on a 1991 4.3 s10 is to provide the computer the position of the crank shaft to give it the right information to get correct timing. That would be the crank position sensor. The knock sensor monitors the engine for spark knock (ping) so the ECM (Engine Control Module) can retard the timing to eliminate it.
R-12 from factory Should be converted to R134
There is a sensor located between exhaust manifold #1 and #3 (drivers side). This sensor controls the temp gage in a cars interior.