Whining noise after head gasket replacement on Subaru Impreza 2007

Asked by Mar 31, 2017 at 11:11 PM about the 2007 Subaru Impreza 2.5 i

Question type: Maintenance & Repair

I recently got the head gasket replaced on my
Subaru Impreza 2007 Sedan. As soon as I picked
to the car from the mechanic, I started hearing a
whining noise from the front of the car. I took it
back to him, and he now tells me that the power
steering hose needs to be replaced. Description of
the whining noise

1. Happens when the car is cold (in the morning) or
when I'm driving in the city or traffic. Basically, at
low speeds and when I'm accelerating.

2. On the highways, when cruising, I barely hear it.
Seems like once the car reaches a smooth drive,
the nose disappears.

3. To rule out any transmission issues, I put the car
in neutral, and Rev the engine. I can hear the whine
even then, leading me to believe that it's not
transmission related

4. I hear the whine when making turns as well,
though I haven't experienced any steering issues

My questions are
1. Is it possible that the mechanic messed up
when assembling my engine?
2. How common of a problem is this?
Thanks Al

My car has 110000 miles. My car has an automatic
transmission.

3 Answers

10,060

Sounds like the mechanic could be correct ,,,but get a second opinion because the belts were all removed to pull the head off to install a new head gasket BTW that repair should not be that expensive

73,775

Yes it sounds like the power steering pump, and they do whine, it is especially common on Fords. And no, I don't think the mechanic screwed up. It is possible replacing the hoses may take care of it, I'm not too sure, but it is possible it could if there is a restriction in the hoses, may be breaking down internally.

5,540

Nope, nope, nope. Subaru attaches the ps pump's top inlet hose with an offset 10mm screw that is supposed to keep the port tightly attached. What happens is that the thin rubber 0-ring inside shrinks and triangulates from age, leaking air INTO the system as it's not held quite tightly enough...especially after reassembly after removal to perform HG job. Remedy is really simple: remove the top hose, pick out the old black or-ring, then get thee down to a decent hardware store and chase a new slightly larger o-ring that will seal nicely when squished down by that singular attachment screw. Then add ps fluid (or atf) to the reservoir and statically turn a couple of figure- 8's with the wheel to squeeze out residual air in the system. It' may take you a couple of driving sessions to completely purge fully. You'll know when you're done when the whining disappears when the wheel is gently locked in either direction, and motion is stutter-free. If you SQUEALING then simply tighten the ps belt itself 3 full turns on its 12mm top-adjusting bolt (after loosening its front-mounted 12mm lock bolt). Easy peasy....

Your Answer

Impreza

Looking for a Used Impreza in your area?

CarGurus has 19,845 nationwide Impreza listings starting at $2,200.

ZIP:

Subaru Impreza Experts

  • #1
    TheSubaruGuruBoston
    Reputation
    940
  • #2
    F_O_R
    Reputation
    580
  • #3
    Nick Eidemiller
    Reputation
    480
View All

Related Models For Sale

Used Subaru Impreza WRX
53 Great Deals out of 1,292 listings starting at $3,365
Used Subaru Outback
410 Great Deals out of 34,637 listings starting at $1,975
Used Subaru Impreza WRX STi
33 Great Deals out of 665 listings starting at $10,950
Used Subaru Legacy
220 Great Deals out of 14,774 listings starting at $2,449
Used Subaru Forester
427 Great Deals out of 34,358 listings starting at $1,295
Used Honda Civic
812 Great Deals out of 73,912 listings starting at $1,400
Used Mazda MAZDA3
335 Great Deals out of 26,935 listings starting at $950
Used Toyota Corolla
908 Great Deals out of 57,792 listings starting at $1,488
Used Honda Accord
1,130 Great Deals out of 62,430 listings starting at $1,199
Used Ford Focus
749 Great Deals out of 53,163 listings starting at $999
Used Honda CR-V
830 Great Deals out of 55,240 listings starting at $1,750

Used Cars For Sale

2017 Subaru Impreza For Sale
16 Great Deals out of 7,935 listings starting at $16,871
2016 Subaru Impreza For Sale
21 Great Deals out of 670 listings starting at $14,888
2015 Subaru Impreza For Sale
26 Great Deals out of 710 listings starting at $9,850
2014 Subaru Impreza For Sale
37 Great Deals out of 1,039 listings starting at $8,995
2013 Subaru Impreza For Sale
20 Great Deals out of 628 listings starting at $5,995

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.