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

1,995

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

Your Answer

Add photo

Related Questions

Search Jaguar X-TYPE Questions

Jaguar X-TYPE Experts

#1 Tom Demyan
Tom Demyan
Reputation 1,580
#2 Raihan Ahmed
Raihan Ahmed
Reputation 750
#3 superdiver
superdiver
Reputation 470
View All

Related Models For Sale

Used Jaguar XJ-Series
51 Great Deals out of 2,295 listings starting at $1,995
Used Jaguar S-TYPE
10 Great Deals out of 529 listings starting at $1,895
Used Jaguar XK-Series
31 Great Deals out of 749 listings starting at $2,950
Used Jaguar XJR
3 Great Deals out of 105 listings starting at $7,650
Used Mercedes-Benz C-Class
673 Great Deals out of 31,314 listings starting at $1,005
Used BMW 3 Series
1,233 Great Deals out of 36,009 listings starting at $1,233
Used Mercedes-Benz E-Class
486 Great Deals out of 22,791 listings starting at $1,450
Used BMW 5 Series
542 Great Deals out of 14,240 listings starting at $495
Used Ford Mustang
321 Great Deals out of 43,893 listings starting at $2,000
Used Audi A4
213 Great Deals out of 10,817 listings starting at $1,999
Used Nissan Maxima
287 Great Deals out of 24,616 listings starting at $1,400

Used Cars For Sale

2004 Jaguar X-TYPE 3.0 For Sale
121 listings starting at $2,650