My Limp Mode question

10

Asked by Jun 12, 2016 at 01:23 AM about the 2005 Subaru Outback

Question type: General

Just to clarify my previous question: I used the term "Limp Mode" and have read many posts which what I meant to write is CEL on with flashing CC light.

7 Answers

242,215

Scan for the codes, only way to know what the real problems is. Take the car to your nearest auto parts store and have them scan the car and post the 4 digit codes back here.

10

I will restate my question (posted prior to this post): I have been battling a big boost upon acceleration at stoplights for approximately 6 months. Now twice I have gone into limp mode and the tech reads: PO700 (Transmission) and PO731 (Gear 1). I just turned over 190,000 miles but only purchased it a year ago. Any thoughts as to what is the problem(s)? How costly SSS are we talking? Please "dumb" it down guys....I'm a scientist, not a mechanic! Thanks!

1 of 1 people found this helpful.
6,535

Ern had a good explanation for this scenario (I think anyway).. I always thought flashing CC light with solid CEL meant "potential damage to emissions" but he corrected me on it a few months ago. Hoping he might see your question. Can you elaborate "battling a big boost upon acceleration"? Is it revving and slamming or is the car taking off wild and uncontrollable (never heard of the latter happening)??

10

To walth: The boost upon acceleration is how you escribe above, "...revving and slamming..." Any thoughts on that and is it relate to the CEL/CC lights and limp mode???

6,535

My 03 has done that for years but never had any CEL/CC lights or limp mode. I drive it "juuuuust right" so it doesn't slam. It's apparently an issue with the seal (possibly behind the torque converter? or in the valve body) that shrinks and then when it NEEDS pressure, it doesn't have it. So it thinks the pressure is there to shift, and the revs don't match and then it shifts and slams. That's my theory anyway.. Question: Is it grinding now that you have limp mode? I've seen where people ruin the main gear on the..output shaft? inside the trans and I would not drive without expecting it to leave you somewhere. lemme see if I can find that thread.

6,535

idk why I fixated on a busted from diff gear.. but here's the thread. post 31 has the pics http://www.subaruforester.org/vbulletin/f89/front-diff-rebuild- 95248/ . . . . . it's what I imagine is slamming. But your situation is Gear 1? Maybe Ern can chime in with a more accurate analysis. Crud, I was thinking 99-04.. idk much about the 05 trans.. Check out opposedforces for your year and 4eat? 5eat? and see what years work for you to swap. Or you could look for good mechanics but that stuff is expensive and the shims and knowledge has to be there with these AFAIK.

6,535

TheSubaruGuruBoston -- answered 48 minutes ago -- (on your original question):: Sounds like lost pressure at front inner seal of tranny. Start by draining ATF and refilling with 3.5qts. Wait to circulate by shifting manually a few times, then check dipstick. If still dirty (black or gray) redrain and refill with 3.5 qts again. THEN add a bottle of transmission SEAL CONDITIONER to ATF and try to drive normallly. If you're lucky the front seal with expand and hold pressure, allowing normal launches and upshifts. Monitor and erase CELs as necessary along the way. If clean and conditioned ATF doesn't do the trick it's easier to chase a used 4EAT trans than to repair if successfully...trust me. Good luck.

Your Answer

Add photo

Related Questions

  • My Limp Mode question 7 answers

    Just to clarify my previous question: I used the term "Limp Mode" and have read many posts which what I meant to write is CEL on with flashing CC light.

    2005 Subaru Outback

    -

    General

  • Subaru Outback 2005: Limp Mode 12 answers

    I have been battling a big boost upon acceleration at stoplights for approximately 6 months. Now twice I have gone into limp mode and the tech reads: PO700 (Transmission) and PO731 (Gear 1). I just tu...

    2005 Subaru Outback 2.5 i Wagon

    -

    General

  • cant find my ad 3 answers

    put my ad on and cant find it

    2002 Subaru Outback Sport

    -

    General

  • Can I change my 2010 OUtback to FWD" 4 answers

    My Outback really slides in winter. I've heard you can change it to FWD? Is this true and, if so, how do I do it?

    2010 Subaru Outback 2.5i

    -

    General

  • Can I use my 225/60R16 snow tires / rims on my 2013 Outback that comes with 225/60R17? 8 answers

    I am purchasing a new Subaru outback. I want to use the snow tires and rims from my current outback on the new one. However, the new outback come standard with 225/60R17. Will my smaller rim/tir...

    2013 Subaru Outback 2.5i Premium

    -

    General

Outback

Looking for a Used Outback in your area?

CarGurus has 586 nationwide Outback listings starting at $3,300.

Postal Code:

Search Subaru Outback Questions

Subaru Outback Experts

#1 Markw1952
Markw1952
Reputation 7,020
#2 TheSubaruGuruBoston
TheSubaruGuruBoston
Reputation 2,200
#3 F_O_R
F_O_R
Reputation 1,840
View All

Related Models For Sale

Used Subaru Forester
72 Great Deals out of 753 listings starting at $2,500
Used Subaru Impreza
45 Great Deals out of 859 listings starting at $2,290
Used Subaru Legacy
21 Great Deals out of 439 listings starting at $2,400
Used Honda CR-V
49 Great Deals out of 2,418 listings starting at $1,790
Used Toyota RAV4
87 Great Deals out of 3,306 listings starting at $2,750
Used Toyota Highlander
21 Great Deals out of 634 listings starting at $1,025
Used Toyota 4Runner
5 Great Deals out of 412 listings starting at $3,750
Used Toyota Tacoma
15 Great Deals out of 826 listings starting at $10,500
Used Honda Accord
117 Great Deals out of 1,243 listings starting at $1,495
Used Ford Escape
281 Great Deals out of 5,397 listings starting at $1,150
Used Jeep Grand Cherokee
119 Great Deals out of 3,468 listings starting at $710
Used Toyota Camry
42 Great Deals out of 1,852 listings starting at $838
Used Honda Pilot
15 Great Deals out of 740 listings starting at $2,499

Used Cars For Sale

2017 Subaru Outback For Sale
5 Great Deals out of 224 listings starting at $28,915
2016 Subaru Outback For Sale
16 listings starting at $24,900
2015 Subaru Outback For Sale
5 Great Deals out of 68 listings starting at $18,995
2014 Subaru Outback For Sale
5 Great Deals out of 57 listings starting at $13,995
2013 Subaru Outback For Sale
7 Great Deals out of 75 listings starting at $10,995

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.