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2001 subaru liberty ej25 sohc knock


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#41 Dylan720

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Posted 16 October 2017 - 08:54 AM

Only from knock sensor witch isnt pluged in but its never been pluged in cause it was fu ked when i git the engine and its always ran fine without it

#42 duncanm

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Posted 16 October 2017 - 11:21 AM

mmmm - suggest you go to a wreckers and get a replacement.



#43 Dylan720

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Posted 16 October 2017 - 11:51 AM

Engine or knock sensor

#44 duncanm

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Posted 16 October 2017 - 01:08 PM

knock - the known broken thing



#45 Dylan720

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Posted 16 October 2017 - 08:23 PM

I replaced the knock sensor still the same issue

#46 El_Freddo

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Posted 16 October 2017 - 08:40 PM

Did you do the "battery dance" to clear the ECU's memory and thus any stored codes?

 

Then let the ECU do it's thing while it resets itself.  Leave the engine running at idle while it warms up and works out idle etc.  I doubt the knock sensor will get rid of the issue you're taking about, but it should certainly help the ECU work out correct fuel metering and give you a few more berries as well.

 

Cheers

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#47 Dylan720

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Posted 17 October 2017 - 07:13 AM

Yes i did its showing up up on scantool misfire codes only

#48 Dylan720

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Posted 23 October 2017 - 03:26 PM

Could it be valve lash possibly firing order of the valves be out can someone here send me the instructions to do it and ill check that out before ripping the engine apart again

#49 Dylan720

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Posted 30 October 2017 - 06:32 AM

So i did a cylinder leak down test over the weekend when doing it drivers side was fine when set the timing marks theres play in the sproket witch is normal but the left sude passenger side when timing is lind up the leak down test didnt worktjd valves were open but if when i put the sproket down to 6:00 they were shut and theres play in the sproket and valves were shut and the leak down test was normal. My question does all that sound rjght or does it seem that cam shaft could have been put in the head wrong

#50 El_Freddo

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Posted 20 November 2017 - 08:34 PM

When cam timing marks are aligned not all cylinders will be closed for a leak down test.

 

And THERE SHOULD NOT BE ANY SLOP in the sprocket, they should all be tight so when they move, the cam moves with them.  With the cam belt fitted there shouldn't be any slop in that either, if things aren't tight there's an issue and this could have caused the cam belt to skip teeth.

 

I'm guessing though, that when you say "play in the sprocket" you mean that you can freely turn the cam gear by hand in either direction.  This is because all valves are closed and are not applying spring pressure to the cam lobes.

 

Another thought is to make sure the cam wheels are on the correct side.  They'll have markings on them, but it should be easy since one wheel is plastic - this should be on the driver's side (or the right hand side of the vehicle).

 

Otherwise I'm out of thoughts for this "round".  I hope you get it sorted soon!

 

Cheers

Bennie


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