Car Problem Reports
Subaru Forester Check Engine Light Due to Failed Knock Sensor
Subaru Forester Problem
Average Mileage: 138,981 mi (30,789 mi - 240,000 mi)
Visitor, 1999 Subaru Forester, 30,789 mi
The check engine has come on twice in the past two weeks and the code read (knock). The engine has always made some noise from a piston slap but the light has never came on before. Now,I am wondering if I have an engine problem.
Visitor, 1998 Subaru Forester, 197,000 mi
I had this same issue and reported it as well, but took it the shop and replaced the sensor as well as did a full tune up..All belts, Wires, Plugs and fuel filter and that fixed my check engine light as well as the A/T temp light
My forester severly hesitates then suddenly speeds up my check engine light does report back the knock sensor, does the symptoms sounds related to the sensor?
Visitor, 2001 Subaru Forester, 175,000 mi
Check engine light on due to failed knock sensor and catalytic converter
Visitor, 2002 Subaru Forester, 109,000 mi
check engine lite
Visitor, 2007 Subaru Forester, 123,000 mi
CEL came on, seemed to run rougher, my mechanics put it on tester, drove it & report all was well after testing/driving- reset CEL. Cel came back on within a week, cruise control lights also flashing/disabled, mech says bring it by in am, hook it up & see if anything else involved. We shall see....
Visitor, 2001 Subaru Forester, 84,000 mi
Visitor, 1998 Subaru Forester, 100,000 mi
Check engine light was on and I discovered that it was the knock sensor. I replaced the sensor and even though I can hear slight detonation knocks, it is doing just fine after about a year.
CEL came on as knock sensor reading low. Changed knock sensor with a aftermaket (Bosch I think) and CEL went off and trouble code never came back.
Visitor, 1999 Subaru Forester, 140,000 mi
Check engine light came on and the diagnostic code indicated bad knock sensor, located knock sensor and removed, founf it had a cracked housing. Replaced knock sensor and reset code. Now have 160,000 mile with no further problems.