1990 Cadillac Fleetwood "caus knock tune" Questions

...it usually needs careful inspection to identify where it is from. I will give a list of some of the causes and remedies. Yours will probably be one of them, but unless I was there - it could be any. ...

...happens under load. 1: check fuses. 2: check knock sensor for outside damage. 3: SCAN the PCM. do you have any DTC errors/ 4: do a full 60k tune up. maybe its lean because the fuel filter is

tune-up would be good too. Spark knock or preignition sometimes is caused by carbon build-up in the combustion chambers. Other knocking might be something physically bumping, like a loose exhaust pipe

...Tune up or fuel filter can cause the code to set for the knock sensor. It listens for knocking so the pcm can shut the car down. Those very rarely go bad unless it has been soaking in coolant

...gas .make sure engine timing is correct. also make egr valve is opening when it suppose to it will cause detonation.you will need a scanner to check tps and egr

I have a 96 infiniti i30 and while im driving there is a knocking noise... what this be? The check engine light is off. I'm not familiar with this car, but your gasoline may be too low in octane, that

...knock sensor. Check the connector. Sometimes just disconnecting and reconnecting fixes the fault. Otherwise, it is not difficult to replace. It is a round gizmo attached to the block with a bolt ...

...that correspond to its center frequency (5550 Hz). Vibrations from engine knock (detonation) cause the crystal inside the sensor to vibrate and produce an electrical signal that is used by the ...

knock" sound during engine rotation. "Pinging" refers to the tapping sound you get upon acceleration, either when using fuel that is to loo octane for the vehicle, or when static timing is set too far

...tune the engine so that it doesn't knock. If your knock sensor wasn't operating properly, so that it was always indicating a knock, the engine computer's response may have been to change the ignition ...