Question about 1997 Subaru Legacy

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How do you replace the spark plug wires on 1997 Subaru outback/legacy?

I need to replace the spark plug wires on my 1997 Subaru outback/legacy. I've looked it over and it seems like it would be easy. It's just that the engine is built much different than other cars I have seen. From what I have read, I might not be able to simply take out the spark plugs without a jack of some sort. Can I access the spark plugs form the top or is it easier to replace them from underneath the car?

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Access from top is better but you must remove battery/washer reservoir driver's side and intake piping on passenger's side to get to the plugs. If you have bad back, access from underneath is fine but I'd have a ramp instead of jack for safety reasons.

Posted on Aug 31, 2017

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6 Suggested Answers

6ya6ya
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SOURCE:

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Posted on Jan 02, 2017

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mas66
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SOURCE: Subaru Engine Vibration

I'd suspect a vacuum leak in the inlet manifold, check to see if any vacuum lines might have fallen off. This can cause a lean misfire at idle, but often it's not enough of a leak to make it lean enough to misfire at higher rpm. If a leak is not obvious, check if it is a leak by buying a can of engine start (or even CRC will do) and spray it all around the inlet manifold. If the idle smooths out while you're spraying then then goes rough again, it is a leak. By spraying in specific areas you can narrow down the area of the manifold or gasket that is leaking.

Hope this helps.

Posted on Oct 26, 2008

Rebgagnon
  • 382 Answers

SOURCE: Not as easy to change as any of my other cars. Do I have to remove the motor mount?

Not easy without proper plug wrench. If not available then I use a plug socket and 1 " extension. Reach them in first onto the plug, then put ratchet on. When I re install I use a small piece of hose that the plug sets in to start the treads. The hose won't allow you to get enough torque to strip the threads but will start. Good luck and try to have paitience.

Posted on Apr 21, 2009

motor1258
  • 6674 Answers

SOURCE: after changing the spark plugs on my car the check engine light came on. Why?

.044 should be.

Posted on Apr 25, 2009

gordanddar
  • 477 Answers

SOURCE: I have a 1997 Subaru Legacy Outback AWD. The

when you replaced the plugs , was one of them (cylinder 1 ) dirty and fouled ?
I'm thinking that bad rings in cylinder would give you low compression , and eventualy cause the missfire by fouling up the plug.
There is an inexpensive product that will help with the compression by filling up scratches in the cylinder walls. It is called Restore , and it is one of the only products of its type that I have used , and feel actually works.
Unfortunately , if your rings are broken , or badly worn , nothing in a bottle will fix them.

If your car had a distributor cap and rotor , I would change them too.

Posted on May 13, 2009

  • 1 Answer

SOURCE: My 1996 Subaru Legacy Outback.

1996 subaru is it pre 06-96 or aft 07-96

Posted on Jun 04, 2011

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2006 subaru outback, missfire code - cylinders 1 and 3. Could it be coil or plugs and wires I'm told at service shop. Anybody come across this?


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Dec 06, 2012 | 1997 Subaru Legacy

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Jul 18, 2011 | 1997 Subaru Outback

1 Answer

Just changed the plugs and wires, in my 1997 Subaru Outback legacy 2.5, and the car starts up and then runs rough for about 3-5 seconds and then shuts down, I bought after market wires, and they are not...


Thanks for choosing FixYa and welcome to the site. This is very well possible. If the plug wires are in the wrong spot, it will cause this. Make sure that the spark plugs were gapped correctly as well. Most plugs come pregapped but just make sure. Check for any wires or hoses that may be loose from changing the plugs. Make sure everything is put back on. When you change plug wires, make sure you mark them. I would double check the plug wires. If you didn't have this issue until you changed them, more then likely, that is whats wrong. If you have any questions, feel free to ask and thanks for using FixYa.

Apr 14, 2011 | 1997 Subaru Outback

1 Answer

My `1997 Subaru legacy outback wagon ,my gas mileage went from 21 MPH to 15 MPH. What do you think is wrong.


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Feb 20, 2010 | 1997 Subaru Legacy

1 Answer

Grounding issue? Fusible link? 1997 Subaru Legacy won't start


Yea i would check the fusible link. Check all the wires at the alternator and to the starter. Take them loose and clean all connections. Check all body to chassis and engine to chassis/ body grounds. If they look weathered make some and replace or just add some. With the age of it you could have highly corroded wires.

Jun 01, 2017 | 1997 Subaru Outback

1 Answer

I have 1997 subaru outback wagon that I bought used. It appears that the spark plugs and wires are still the oem wires and have never been changed. How do I get a broken plug cover off to remove the plug?


As you are going to replace the plug and wire anywhere, get a pair of needle-nose pliers and grab what's left of the broken plug wire and pull hard. Even if it snaps the spark plug off, you will still be able to use the spark plug socket to remove the plug.

Oct 06, 2009 | 1997 Subaru Outback

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