PO171 + PO174

20

Asked by Jan 16, 2015 at 03:14 PM about the 2004 Jaguar X-TYPE 3.0

Question type: Maintenance & Repair

Hi everyone. I went for my inspection today and couldn't pass as the engine light came up. PO171 + PO174. Seems to be vacuum leak. Is anyone familiar how serious this could be and how expensive to repair? Thanks in advance smile emoticon

1 Answer

2,435

I pulled this off a Jaguar forum "Those codes mean that the engine is running lean on both banks of cylinders. A common cause of this is a vacuum leak. I had that, and solved it by changing the IMT o-rings, PCV hose, and brake booster hose. The only one of these parts that is somewhat expensive is the brake booster hose, which is around $100; the others are quite cheap. There are other possible causes, but these are common. I never did figure out which was the culprit in my case, I just changed them all and the problem went away. It took me less than an hour to do the job, and I am slow!" I have also heard that the leak is usally in the brake booster itself. Good luck

1 people found this helpful.

Your Answer:

Jaguar X-TYPE Experts

  • #1
    Tom Demyan
    Reputation
    1,950
  • #2
    Raihan Ahmed
    Reputation
    810
  • #3
    superdiver
    Reputation
    490
View All

Related Models For Sale

Used Jaguar S-TYPE
10 Great Deals out of 347 listings starting at $1,500
Used Jaguar XJ-Series
38 Great Deals out of 1,901 listings starting at $1,995
Used Jaguar XK-Series
26 Great Deals out of 622 listings starting at $5,045
Used Jaguar XJR
4 Great Deals out of 81 listings starting at $5,950
Used BMW 3 Series
921 Great Deals out of 31,704 listings starting at $900
Used Mercedes-Benz E-Class
439 Great Deals out of 20,083 listings starting at $1,500
Used Mercedes-Benz C-Class
693 Great Deals out of 26,580 listings starting at $1,812
Used Chevrolet Corvette
83 Great Deals out of 15,126 listings starting at $3,620

Used Cars For Sale

2004 Jaguar X-TYPE 3.0 For Sale
3 Great Deals out of 68 listings starting at $1,700

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.