My 2000 Outback stuggles to accelerate when the engine is cold and it loses speed climbing hills.

10

Asked by Feb 04, 2015 at 09:20 PM about the 2000 Subaru Outback Sport Wagon

Question type: General

I have 2000 Impreza Outback Sport Wagon with a 2.2 liter engine, and 135,000 miles on it. The car lugs down and does not want to accelerate when the engine is cold. My experience with fuel injected engines in other cars is that they accelerate just fine even when the engine is cold. You would think this engine is carbureted and not fuel injected with the way you have to wait for it warm up. The car also loses speed climbing hills, and it's getting poor gas mileage. Any ideas as to what the problem or problems might be ?

7 Answers

77,735

I would have the vehicle scanned with a "live data" scanner, it might show that some sensors are out of specs, they have not failed so the ECM is not turning on the light but is causing the system to adjust the A/F ratio and timing according to the readings it is receiving even though those readings are incorrect. Make sense?

2 out of 2 people think this is helpful.
10

Yes ! Thanks ! That does make sense. I did forget to mention that the "check engine" light is on, so I assumed the there was a problem with a sensor or sensors. Thanks again !

1 out of 1 people think this is helpful.
5,605

two good replies :) Might not be 100% accurate but I would guess idle air control and/or upstream oxygen sensor is dirty or failing for bad hesitation and bad fuel economy. But it could be other inputs as well. Watching the live data is pretty neat -- like learning how the O2 sensor fluctuates from lean to rich to in-between to keep it efficient. How much effort does it take to get it started and actually stay running? Any issues there?

10

It seems to start fine and it does continue to run. In the area that I live in, there is a Subaru specialty repair shop. My only other question would be, would you recommend that I take the car to the local dealership's repair shop or to the specialty shop ?

77,735

The speciality shop will proabality give you more for your money and they would be wanting you to become a returning customer.

1 out of 1 people think this is helpful.
5,605

err.. you had to ask that.. I would check out reviews on both. I think it varies so much that I don't want to sway you either way. The biggest thing in my book is integrity, whether someone lets you watch or you've only heard good things and have a good feel of trust. Checking to see if your engine changes to closed loop (o2 sensor) fairly quickly and monitoring the fluctuation really takes no time IMO. I don't think it is something that needs to be dropped off for unless other things are shown in the codes and you decide to have it done. Anyway, ask around some smaller shops, ask if anyone knows of subaru trained techs that may work in the area aside from the two you know of, etc.

10

Thanks again !

Your Answer

Add photo

Related Questions

  • Gas Mileage? 25 answers

    How good of gas mileage will a subaru outback get?

    Subaru Outback

    -

    General

  • SUBARU CVT WITH OIL BURNING PROBLEMS- All Models 35 answers

    HOW MANY PEOPLE ARE OUT THERE WITH OIL BURNING ISSUES ON ANY MODEL SUBARU WITH CVT? Do you have one and what model and year is it?

    2010 Subaru Outback 2.5i Limited

    -

    General

  • Can you shift faster or more smoothly as an automatic transmission? 20 answers

    Modern automatic transmissions are so sophisticated today that less than 5 percent of new cars sold in the USA have manual-transmissions . And, unlike cars from 40 years ago, a lot of these n...

    2015 Subaru Outback

    -

    General

  • WHAT BROUGHT YOU TO SUBARU? 21 answers

    How did you discover the sweet sounds and performance of "flat engines "? Do you think they have a performance sweet spot, with the equal torque and horsepower specs?

    2010 Subaru Outback 2.5i Limited

    -

    General

  • Pre-owned Outback 103 answers

    I am looking for a pre-owned Outback for my wife and have $10,000.00 dollars cash to spend. I am a little limited in choices since she insists on the large "double" moonroof. I believe these are a...

    2008 Subaru Outback 3.0 R L.L. Bean Edition

    -

    Shopping & Pricing

Outback

Looking for a Used Outback in your area?

CarGurus has 30,505 nationwide Outback listings starting at $2,000.

ZIP:

Search Subaru Outback Questions

Subaru Outback Experts

#1 Markw1952
Markw1952
Reputation 4,640
#2 FordNut
FordNut
Reputation 1,480
#3 TheSubaruGuruBoston
TheSubaruGuruBoston
Reputation 1,340
View All

Related Models For Sale

Used Subaru Forester
358 Great Deals out of 19,907 listings starting at $1,200
Used Subaru Legacy
225 Great Deals out of 17,193 listings starting at $1,200
Used Subaru Impreza
195 Great Deals out of 6,826 listings starting at $1,200
Used Honda CR-V
1,306 Great Deals out of 75,456 listings starting at $1,995
Used Toyota RAV4
1,099 Great Deals out of 53,309 listings starting at $1,588
Used Toyota 4Runner
381 Great Deals out of 19,764 listings starting at $1,987
Used Toyota Highlander
633 Great Deals out of 27,846 listings starting at $2,988
Used Toyota Tacoma
742 Great Deals out of 32,548 listings starting at $1,900
Used Jeep Grand Cherokee
1,087 Great Deals out of 69,712 listings starting at $495
Used Honda Accord
1,207 Great Deals out of 77,326 listings starting at $700
Used Toyota Camry
1,435 Great Deals out of 99,712 listings starting at $700
Used Ford Escape
1,703 Great Deals out of 85,764 listings starting at $1,350

Used Cars For Sale

2017 Subaru Outback For Sale
20,956 listings starting at $23,920
2016 Subaru Outback For Sale
30 Great Deals out of 804 listings starting at $22,461
2015 Subaru Outback For Sale
91 Great Deals out of 1,437 listings starting at $15,995
2014 Subaru Outback For Sale
84 Great Deals out of 1,716 listings starting at $10,495
2013 Subaru Outback For Sale
46 Great Deals out of 1,183 listings starting at $9,753