Jump to content

Welcome to Ultimate Subaru Message Board, my lurker friend!

Welcome to Ultimate Subaru Message Board, an unparalleled Subaru community full of the greatest Subaru gurus and modders on the planet! We offer technical information and discussion about all things Subaru, the best and most popular all wheel drive vehicles ever created.

We offer all this information for free to everyone, even lurkers like you! All we ask in return is that you sign up and give back some of what you get out - without our awesome registered users none of this would be possible! Plus, you get way more great stuff as a member! Lurk to lose, participate to WIN*!
  • Say hello and join the conversation
  • Subscribe to topics and forums to get automatic updates
  • Get your own profile and make new friends
  • Classifieds with all sorts of Subaru goodies
  • Photo hosting in our gallery
  • Meet other cool people with cool cars
Seriously, what are you waiting for? Make your life more fulfilling and join today! You and your Subaru won't regret it, we guarantee** it.

* The joy of participation and being generally awesome constitutes winning
** Not an actual guarantee, but seriously, you probably won't regret it!

Serving the Subaru Community since May 18th, 1998!

Guest Message by DevFuse

- - - - -

Hesitation/Lack of power

  • Please log in to reply
3 replies to this topic

#1 mr. bliss

mr. bliss

    New User

  • Members
  • Pip
  • 9 posts
  • canada

Posted 29 February 2004 - 05:33 PM

Hi all, i had a question about my 1993 subaru legacy wagon (2.2L, 4 cylinder):

I get this hesitation/studder when i give it gas. When im at a stop light or if im traveling 110km an hour.....i'll give it gas to pass another car and i get this studder, lack of power.

I know a bit about cars, and guess that its something like a dirty gas filter or fouled jets.

The car recently (feb 2003), so one year ago, had a new gas tank and fuel lines put in.....this was before i owned the car...

The problem has gotten progressively worse over the past three months it started as more of a slamming feel whe you first gave it gas....that is to say it was hard to get the car to just move nicely along at low speeds....now its more like a studder.

I dunno, im going on and on here...just wondering if anyone else has experienced this problem?

thanks, jay

#2 STinger


    New User

  • Members
  • Pip
  • 7 posts
  • Canada

Posted 02 March 2004 - 02:43 AM

I had a consistent hesitation on my '95 1.8L Impreza when giving it gas under 2000 rpm. It would always hesitate and buck, and if I tried really hard, it could cause a backfire. I spent a lot of time diagnosing, checking codes, new fuel filter, fuel injector and throttle body cleaners, etc., thinking the problem was much more complicated than it was. In the end it turned out to be the plugs! A fresh set of plugs cured the problem completely. So I'd check the plugs, wires, and coil before starting on anything else.


#3 DerFahrer


    Formerly subyluvr2212

  • Members
  • 2,420 posts
  • Orlando, FL

Posted 02 March 2004 - 12:25 PM

This is a far more elusive problem than that, I'm afraid...

I have had the hesitation pretty much every single time I pull away from a stop in the 3½ years I've had the car. I have:

kept fresh, properly-gapped NGK V-power plugs in the car
plug wires and coilpack recently replaced
changed the fuel filter at or before interval
put a new alternator, knock sensor, and motor mounts on the car
run 89 octane gas (BC/BF nonturbo Legacies don't like 93)
tried pretty much everything else I can think of.

Someone with a 91 turbo recommended I try a fuel injector cleaner called Lubro-Moly Jectron. It's a German formula used in VW/Mercedes, etc. I was told to run 3 tanks of it. 1st tank=nothing, 2nd tank= great improvement, but still there.

I just filled up my 3rd tank yesterday and it's back to full hesitation again...

I do believe this points to a fuel injector problem, but Legacy777 has put a complete set of brand-new balanced and blueprinted injectors on his Legacy to no avail...

So, for now, you might hafta live with it until we come up with another possible solution :mad:

#4 Nuwan


    USMB Regular

  • Members
  • PipPipPip
  • 69 posts
  • Brampton, Ontario, Canada

Posted 02 March 2004 - 01:51 PM

has the same issue in my '91 legacy, the problem eventually turned up as a bad 02 sensor.

The problem worsened over time until the engine stalled at one point, finally producing a CEL which revealed an 02 sensor problem. Changed the sensor and things are as good as new.

so you may want to look into the 02 sensor as well, and check the condition of your spark plugs and make sure they are correctly gapped, good luck:)

0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users