It signals the computer to reduce the ignition timing.
It is in front of the starter on my van.1990 350
no
What year, and application? NEW ANSWER: That would be the knock sensor,
oil pressure switch or knock sensor
In place of the coolant drain plug on either side of the block.
location of knock sensor in 1997 cheverolet Tahoe SUV 305 or 350 engine
Location of knock sensor 1991 GM sierra 350 2500?
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.
yes
It is screewed into the side of the engine block just in front of the starter. It will have an electric wire pluged into it. It is round in shape.
That depends on the year of the vehicle. The newer 350's have a "knock sensor" that's supposed to sense fuel pre-ignition and briefly retard the timing during periods of heavy acceleration. If THAT'S what's wrong, just replace the knock sensor.
NO.