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  #1  
Old 03-18-2011, 07:28 AM
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Default Trouble code P0171 & P0174

Hello!
I have a 2003 Jaguar X-Type 2.5, was very excited when I bought it last 4th of July it only had 74k miles bought it from a Acura dealership. I use the metro a lot so I rarely drive it but this past December with 76k miles on it I decided to take it for a drive to work in the winter storm and the Check Engine light came on. Also, I got a Cruise Not Available message across my dashboard. I noticed that when I try to accelerate it stalls like I am stuck in 1st or 2nd gear. I decided to take it to AutoZone to have the codes scan and it came back with codes P0171 and P0174. Call the Acura Dealership and they said they couldnít fix the car because itís a Jaguar, I called a Jaguar and from them its sounds like itís going to cost me a lot of money. Can someone please help me as to what the problem could be?
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Old 03-18-2011, 11:47 AM
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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!
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Old 03-18-2011, 01:13 PM
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I got these 2 codes too for a year and couldn't fix it until I found the problem shown on the picture. the leaking part of the brake booster hose was on the back side. the whole brake booster line looks so new that I neglected any possible defect of it before. Then I sealed it with 60 second epory glue and high temp tape. now it works well and those 2 codes are gone.

2003 jaguar x-type 2.5L
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Trouble code P0171 & P0174-dsci1416-jpg   Trouble code P0171 & P0174-dsci1418-jpg   Trouble code P0171 & P0174-dsci1419-jpg  

Last edited by Sienlee; 03-18-2011 at 01:18 PM.
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Old 03-21-2011, 10:14 AM
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Thank you all for suggestions! I think I will just replace all three things (IMT O-rings, PCV Hose & Brake Booster) and see what happens. Also, this weekend I noticed that I filled my tank up to a Ĺ tank and drove about 100 miles and I swear to God my gas hand is on the red for empty, would this also be a cause because of the three things listed?
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Old 01-15-2012, 07:52 PM
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Can you elaborate or send any pics about the location of the PCV hose, and brake booster hose?
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Old 01-16-2012, 05:51 PM
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The Pcv hose is right when you open the hood of your jag take of the plastic part over the engine and its a small hose on top.
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Old 01-16-2012, 05:58 PM
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have you checked all these areas

you replaced the o rings below..what about the others



Click the image to open in full size.

Click the image to open in full size.

for the brake booster

Click the image to open in full size.

Click the image to open in full size.

one of theses plugs maybe disconected

Click the image to open in full size.

if you have checked all these for vac leak

I have the same problem but Im going to fix it myself. Check my forum.
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Old 01-17-2012, 03:30 AM
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Thanks for the pics, I am sure these will be helpful for others as well
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Old 01-17-2012, 11:03 PM
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Quote:
Originally Posted by RenegadeRose View Post
have you checked all these areas

you replaced the o rings below..what about the others



Click the image to open in full size.

Click the image to open in full size.

for the brake booster

Click the image to open in full size.

Click the image to open in full size.

one of theses plugs maybe disconected

Click the image to open in full size.

if you have checked all these for vac leak

I have the same problem but Im going to fix it myself. Check my forum.
Thanks for the pics, I checked all but not those plugs. Where are them located ?
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Old 01-18-2012, 07:30 AM
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Sorry I dont know exactly. I pulled it from another forum thats talking about are problem but I lost it.
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Old 01-18-2012, 06:08 PM
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Hello,I'm having the same code errors on my 2003x-type, I tried to change the O rings.
I did manage to do so with the top one, but the one on the buttom i have a problem removal from the engine.. please advise on how to remove it
Thanks Chrys
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Old 01-18-2012, 06:15 PM
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Hello, how can I remove the bottom O ring housing?? It touches the engine and can't get out...
Thanks for your help
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Old 01-19-2012, 12:02 AM
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Hi everybody,

The floor carpet from the passenger side of my X-type is wet i noticed this and it is been going on for a while and dry out by itself but it comes back, It is coming from the buttom

Anyone had this problem? why it is wet? again passenger side floor, wet is coming from the buttom
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Old 01-19-2012, 12:04 AM
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I got it they are by the driver side
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Old 01-19-2012, 08:54 AM
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Quote:
Originally Posted by Chrys View Post
Hello, how can I remove the bottom O ring housing?? It touches the engine and can't get out...
Thanks for your help
The bottom will not come out all the way, and that's ok. All you need to do is to cut the old yellow ring off. Then, gently stretch the new green ring around. It will stretch a little, just be careful and you'll be fine. I have done this, actually many of us on this forum have done this.
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Old 01-19-2012, 09:12 AM
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He is exactly right... That is how you get it on and off... Mine were already green but looked awful so i changed them anyway. Sounds better but not perfect. Im going to clean tb and maf today.. will post results.
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  #17  
Old 01-24-2012, 01:05 PM
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Quote:
Originally Posted by RenegadeRose View Post
have you checked all these areas

you replaced the o rings below..what about the others



Click the image to open in full size.

Click the image to open in full size.

for the brake booster

Click the image to open in full size.

Click the image to open in full size.

one of theses plugs maybe disconected

Click the image to open in full size.

if you have checked all these for vac leak

I have the same problem but Im going to fix it myself. Check my forum.
What are the names of the O-Rings in the first pic so I can order them?

Also, I've found the upper O-Rings to order, but cant find the lower? What is their exact name?

Thanks!
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  #18  
Old 01-24-2012, 06:20 PM
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I am not very mechanically minded, but I found this link which may help

Jaguar X Type Diagnostic codes

It seems to think that your fault is to do with the power train
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  #19  
Old 01-25-2012, 04:49 AM
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To save you time you can only buy them from Jaguar and the part number is C2S40669...
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Old 01-26-2012, 09:43 AM
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Quote:
Originally Posted by RenegadeRose View Post
To save you time you can only buy them from Jaguar and the part number is C2S40669...
http://www.motorcarsltd.com/C2S40669.html

Are these the ones that are shown in the first pic?

Thanks!

Last edited by Strafe; 01-26-2012 at 09:45 AM. Reason: forgot link
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Old 01-26-2012, 09:43 AM
 
 
 
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Tags
01, 2003, code, codes, diagnostic, engine, gear, jaguar, p0171, p0174, po171, stuck, type, vehicle, xtype



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