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Q: Can a bad knock sensor cause a rough idle?
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Will a knock sensor make your van not idle?

The knock sensor is a passive device that has no effect on engine idle.


Will a knock sensor make it not to idle?

The knock sensor has no effect on idle. It has no effect at all unless it is triggered by detonation. It is a passive device.


Can crankshaft position sensor cause rough idle?

Yes, sadly it can, especially in the Jeep 4.0


Where is the MAP sensor on a 1999 Nissan Altima and could this sensor cause a rough idle if bad?

YES it does. It should be close to intake.


Will bad oxygen sensor cause rough idle?

Not likely but possible. I would suspect a leaking vacuum hose.


What Would Cause a 1991 jimmy to idle rough and stall when you first start it all ready did the fuel idle sensor?

Try cleaning the EGR valve.


What is the relation between the oxygen sensor and the idle rough speed?

The oxygen sensor, if defective, will give inaccurate readings to the engine management computer and may lead to a rough idle.


Where is the knock sensor on a 2001 Subaru Forester?

The knock sensor is located near the idle air control solenoid valve on a 2001 Subaru Forester. The knock sensor is responsible for sensing vibrations caused by engine knock.


1993 subaru legacy rough idle- what could be causing it?

If an alternator is going bad it can cause a rough idle in a 1993 Subaru Legacy. Cold temperatures in the winter can also cause a rough idle in the Subaru Legacy.


What causes a 1993 Nissan G20 to rough idle and stall out when put into gear?

The EGR valve or the Knock Sensor could be the problem here. Repairs run about $500.00 at a shop or do it yourself for about $250.00


Why won't my 1995 Oldsmobile idle?

What can cause a 1195 Oldsmobile to idle rough?


What can cause a rough idle in 1992 firebird?

Maybe your air filter or plugs and wires. Or maybe your MAF sensor or your IAC valve needs cleaning.