Subaru Forester Problem Report
Subaru Forester Check Engine Light Due to Failed Knock Sensor
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. Answers anyone? - Visitor
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 - Visitor
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? - duanednt
they cannot seem to fix it - Visitor
My knock sensor failed and check engine light turned on. Fixing issue. - Visitor
check engine light on dealer checked an came saying is the knock senser - Visitor
Check engine light on due to failed knock sensor and catalytic converter - Visitor
check engine lite - Visitor
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
happens constanly - Visitor
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. - Visitor
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. - b_bus99
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. - Visitor
check engine light - elblann
knock sensor failed but good sensor havent fixed yet - kayah
Check engine light came on while driving. Stopped the car and checked the usual ... was the ga...
Is the replacement costly (spprox), and what are ramifications if left alone?
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