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Subaru Legacy Wagon Hesitation problem

31 messages,  Last post on Oct 09, 2011 at 5:20 PM

You are in the Subaru Legacy & Outback Forum.

What is this discussion about? Subaru Legacy, Engine, Sedan, Wagon

Messages Page 3 of 4

#20 of 31 Re: Hesitation problem [carnut114]1998 subaru legacy gt wagon 2.5 [carnut114] [grahampeters] [carnut114] by chinookcpt

May 26, 2009 (8:17 pm)

Replying to: carnut114 (Feb 18, 2007 10:29 am)
Hey there,
 
i got the exact same problem on my legacy brighton 2.2 1999. Also tried the sea foam cans and fuel injector cleaner. Both oxygen sensors, plugs and wires have one year, new fuel filter and I've just changed the mass air flow and knock sensor, but still nothing does the trick... and still no check engine...
 
Have you solved your problem finaly? Did anybody?
 
Somebody knows anything new? Thinking about changing the ignition coil after reading this thread but, did it help anyone?
 
Thanks

#21 of 31 2006 Subaru Legacy Hesitation by bdzin1

May 28, 2009 (6:21 pm)

Hi,
Anyone else notice a persistent hesitation? I have had a hesitation since new, I had it back at the dealer and each time they tried to tell me it would be fixed on the major service, they had no issues with it being reported. They changed the coils to no avail. I took the service manager out for a ride and we didn't have to leave the starting spot to notice it. He said that it was nothing. So I asked to go for a ride in his car. He said that wasn't fair because he didn't own a Subaru. I said why, because they have a hesitation problem. I had an Inpreza loaner and that car didn't have any such problem.
 
So I was an idiot and waited and now even the lemon law here in CT won't help me.
 
The hesitation is right as you attempt to accelerate from a stop. I can't depend on the car to get the 'jump' at a light so I have to sit and wait. I know if I was a teenager this would kill me!
 
I'd be interested to hear everyone's comments on this subject.
 
Thanks!

#22 of 31 Re: 2006 Subaru Legacy Hesitation [bdzin1] by saedave

May 28, 2009 (6:59 pm)

Replying to: bdzin1 (May 28, 2009 6:21 pm)
My 97 Legacy had the same problem. The cure (after much trouble with the dealer) was replacing the knock sensor.
 
Needless to say, I bought my 2005 Outback 3.0R from a different dealer.

#23 of 31 Re: 2006 Subaru Legacy Hesitation [saedave] by chinookcpt

May 29, 2009 (6:46 am)

Replying to: saedave (May 28, 2009 6:59 pm)
Since I've already changed my nock sensor 2 weeks ago, I'm looking elsewhere... Did your "trouble dealer" do something else or did he tried something else before changing the knock? That could maybe help me troubleshooting the damn car...
 
Thanks

#24 of 31 Re: 2006 Subaru Legacy Hesitation [chinookcpt] by saedave

May 29, 2009 (7:55 am)

Replying to: chinookcpt (May 29, 2009 6:46 am)
I seem to remember that mounting the sensor on the engine had to be done correctly for proper operation. Details have gone from memory
 
Did you replace the knock sensor yourself or did the dealer do it?

#25 of 31 RE: by chinookcpt

May 29, 2009 (12:54 pm)

I did it, but the proper way. Anyway, my hesitation problem begun before I changed my knock sensor, and I had a CEL saying the knock was out of range. I changed it, deleted the code, and it hasn't re-appeared during my Montreal-NY city - Montreal trip last week-end... So I am pretty sure that I installed it correctly, still looking for the problem though..!

#26 of 31 RE: [chinookcpt] by xwesx

May 29, 2009 (2:09 pm)

Replying to: chinookcpt (May 29, 2009 12:54 pm)
Now that you have the knock sensor replaced, perhaps it is a good time to reset the ECU/TCU memory so it can relearn your driving habits. If you want to try it, you can easily do it by pulling the battery cable for a while to let the system backup power drain.

#27 of 31 97 Subaru legacy wagon by bshifty73

Dec 07, 2009 (7:23 pm)

stopped running on hwy yesterday...no signs of any issues at all...no noises...nothing! mechanic 2day tells me timing belt...replaces belt and starts it up...2 out 4 cylinders are running...he tells me they are shot...everyone is telling he is nuts! no way this could be...it made no noise! we even tried turning it over yesterday and didnt grind or seize or nothing....Is guy trying to take me for a ride? Getting a second opinion hopefully tomorrow....Any suggestion?

#28 of 31 Re: 97 Subaru legacy wagon [bshifty73] by xwesx

Dec 08, 2009 (11:28 am)

Replying to: bshifty73 (Dec 07, 2009 7:23 pm)
What engine does it have in it? 2.2L or 2.5L? The 2.2L is a non-interference engine, so there should be no damage due to snapped timing belt. There may be other damage, like a camshaft or crankshaft position sensor, that is causing the lack of spark in those two cylinders (which two are they?). If it is the 2.5L engine, that is an interference engine (meaning the the pistons can contact the valves and cause physical damage if they are out of phase). However, there would be noise... a very painful, crunchy noise... if this happened. I would double check to make sure the belt is aligned on the camshafts and crankshaft correctly first (it can be a pain in the butt if the belt broke, because the camshaft sprockets go all which-a-way), then look to make sure there is no physical damage to the sensors.

#29 of 31 Re: 97 Subaru legacy wagon [xwesx] by ateixeira

Dec 08, 2009 (12:31 pm)

Replying to: xwesx (Dec 08, 2009 11:28 am)
Plus it sounds like that mechanic created the problem, so I still might go to a different one, who knows boxer engines.

Messages Page 3 of 4

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