XCR583 Posted December 29, 2006 Share Posted December 29, 2006 I am going to replace the knock sensor on my 98 Legacy Outback w/ 2.5. I got a manual for the car tonight. Its a Haynes manual. The manual says that I need to pull the entire intake manifold to do this. Is this really the case? Also says that I will need to drain the coolant out of the motor. Is this true? Link to comment Share on other sites More sharing options...
porcupine73 Posted December 29, 2006 Share Posted December 29, 2006 I don't think that's true. On both my '96 and '00 the knock sensor is relatively easily accessible. It's basically below the throttle cables. Link to comment Share on other sites More sharing options...
OB99W Posted December 29, 2006 Share Posted December 29, 2006 [...]It's basically below the throttle cables. Perhaps this will help: http://www.scoobymods.com/forums/attachment.php?attachmentid=3057 The sensor is mounted to the block, and unfortunately the intake manifold doesn't help with the access. You'll probably have to move at least a hose or two and maybe some wiring. It's important that you tighten the mounting bolt to the correct torque; overdo it and you risk cracking the new sensor or at least having it respond incorrectly. Link to comment Share on other sites More sharing options...
Manarius Posted December 29, 2006 Share Posted December 29, 2006 I just did it with some extensions....not too difficult. Link to comment Share on other sites More sharing options...
mjreilly Posted December 29, 2006 Share Posted December 29, 2006 You can do it without removing anything with the right combination of extensions. Just keep a bright light and a magnet handy for when you drop the bolt putting the sensor back in. Oh, and a vacuum cleaner. I had to vacuum out all sorts of leaves and debris from underneath the intake manifold. Weird. cheers, Matt Link to comment Share on other sites More sharing options...
JohnVT Posted December 30, 2006 Share Posted December 30, 2006 sometimes you need to ignore Haynes! I did remove the clutch cylinder for easier access, but as others have said, just need extensions to reach it, and a magnet to hold the bolt when replacing it does help. Link to comment Share on other sites More sharing options...
porcupine73 Posted December 30, 2006 Share Posted December 30, 2006 Yes Haynes isn't high on my list for accuracy. Link to comment Share on other sites More sharing options...
JohnVT Posted December 31, 2006 Share Posted December 31, 2006 Yes Haynes isn't high on my list for accuracy. well, I DID use only a Haynes manual to rebuild the manual gearbox on my 82 Saab 900. It had all the info I needed for that fairly complex job. But, the instructions to remove the intake manifold to replace the Subaru knock sensor is simply ridiculous . Link to comment Share on other sites More sharing options...
XCR583 Posted January 2, 2007 Author Share Posted January 2, 2007 Well guys thanks for the info. Got it replaced over the weekend. Still waiting on the cable to come in to replace. Link to comment Share on other sites More sharing options...
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