Question about 1999 Subaru Legacy

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Where do I find the knock sensor on a 1999 Subaru Legacy Outback

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It is on the top of the motor just under the intake manifold. it will look like a wire with a rubber washer around a 14mm bolt.

Posted on Sep 23, 2014

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Location knock sensor1997 subaru legacy outback


The knock sensor is located on the top of the engine block almost hidden from view by the intake manifold. It is almost directly below the spot where your throttle cable connects. It will have a bolt running right through the middle of it and a single wire coming out of it.

Apr 23, 2010 | 1997 Subaru Legacy

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I'm trying to adjust the timing on the subaru 1997 outback legacy 2.5 engine and it seems to not be correct.


The ignition timing is not adjustable. It is computer controlled by the crank sensor, cam sensor and knock sensor. Would be easier to help you if I knew why you were trying to adjust it. Have a great day.

Apr 21, 2010 | 1997 Subaru Outback

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I have a DOHC 1998 twin turbo EJ20 subaru BH5 , engine is knocking. Will a BG5 DOHC EJ20, slot in ....? are they the same ?


Yes they will bolt in. Make sure you have the sensors matched. You might have to do some playing with the computer to make it all work properly. Good luck and have a great day.

Feb 17, 2010 | 1998 Subaru Legacy

1 Answer

1997 subaru legacy outback knock sensor location


Hiya,

Here you go:

2.5L Engine To Remove:
  1. Disconnect the battery ground cable.
  2. Remove the air cleaner housing.
  3. Vehicles with 5-spd transmission: Remove the clutch slave cylinder and set aside.
  4. Disconnect the knock sensor wire harness retainer from the coolant hose.
  5. Disconnect the knock sensor (KS) wire connector.
  6. Remove the mounting bolt and knock sensor from the engine block.
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Hope this helps...

Cheers,

Nov 12, 2009 | 1997 Subaru Outback

1 Answer

Knock sensor 1999 Legacy 2.2


As far as there being no knock sensor on a 99 2.2 I beg to differ. I have a 99 legacy and just had a diagnostic done and mine is bad. If there is no knock sensor why would it say it was bad and why does Auto Zone, Advanced Auto and my local Subaru dealer sell them. Mine is located under the throttel body and they are rather hard to get to. No offence to who ever said ther is no knock sensor but maby you should recheck your information becuse I know there is a knock sensor since I just changed mine.

Jun 14, 2009 | 1999 Subaru Legacy

1 Answer

1999 legacy outback no power going up hill,new knock sensor


Check your tail pipe for color. If insides are black you are running rich and it all may boil down to an oxygen sensor or an EGR valve. EGR valves are the most common causes for the 'check engine' light to come on. Your trouble codes will tell you what it is. Some auto stores will check it for free or you can buy an inexpensive checker.

Mar 12, 2009 | 1999 Subaru Legacy

1 Answer

Outback wagon no power going up hills.


What's the check engine light code? You need to get the code(s) read using a code reader and then we can help. A place like AutoZone will read the code for free and then you can look it up at http://www.obd-codes.com/trouble_codes/

Mar 12, 2009 | 1999 Subaru Legacy

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