Jaguar XKR 2008 Misc. Document Cleaning Your Jaguar PDF

Page 1 of 18
These DiY! Articles are provided as a service of Max Performance Cars and
are the sole property of the author.
MPC is not liable for the content.
TITLE Cleaning the Jaguar XK8/XKR Throttle Body, MAFS, and Part-Load Breather
Project Time Required: Approx. 1 Hour
Last Update: April 11, 2008 – Version 2.5
Author Parts Store Items Needed Tools Needed Skill Level
Dan Pechonis
Forum name: MrTexasDan
Throttle Body Cleaner – *NOT*
carburetor cleaner. (Recommend CRC
brand)
Electrical contact cleaner – Must dry
residue-free. (Recommend CRC brand)
Lint-free cloth
Flat blade screwdriver
8mm and 10mm nut
drivers or sockets and
ratchet
3/32” (2.5mm) drill bit
Vise Grips
Pliers
Phillips-head screwdriver
10mm wrench (for battery
terminal)
Basic
Intermediate
Professional
Author Comments
I own a 2000 XKR. At 82k miles, I was experiencing hard starting and hesitation/rough running when the engine was cold. Also, at any engine
temperature when I stepped on the gas from a standing stop, the response was quite “jerky” and the car lurched.
After some online research, I set out to do a little maintenance that probably has never been done on my car (I bought it at 67k miles). Namely, I
cleaned the Throttle Body, Mass-Air Flow Sensor (MAFS), and Part-Load Breather Tube orifice.
After performing these steps (in less than an hour!), the hard starting and hesitation were gone, the throttle response was smooth, and I got
noticeably more power. I have added this procedure to my maintenance schedule for every 10k miles.
Many thanks go to Jeff Cline, SidVaga, and Bloodworm for their help and posts on this subject. If I ripped off any of your words, it is only because I
couldn’t have said it better. Any inaccuracies or omissions are my responsibility alone and not that of these fine people.
Corrections or suggestions for improvement would be sincerely appreciated.
This document may be freely distributed in its complete and unaltered state, with the author’s name and email addresses included.
Procedures
Clean connectors, hoses, and other parts as you go. This is good practice in general. Clean parts are happy parts.
Under-hood plastic is notorious for being brittle and breaks quite easily. Handle with care.
Care should always be taken to protect the paint while you lean over the fender. Wash dirt off the bodywork *first*, put covers on both
fenders, remove belt buckles, and watch for rivets in jeans or metal zippers, or other potential hazardous bits.
Instructions
STEP 1 Disconnect the full-load breather tube from the big air intake duct by squeezing as shown. This releases the
tangs securing the tube so that it then can be pulled out from the duct. Rotate the breather tube out of the way.

Jaguar XKR 2008 Misc. Document Cleaning Your Jaguar Summary of Content

Page 1 of 18 These DiY! Articles are provided as a service of Max Performance Cars and are the sole property of the author. MPC is not liable for the content. TITLE Cleaning the Jaguar XK8/XKR Throttle Body, MAFS, and Part-Load Breather Project Time Required: Approx. 1 Hour Last Update: April 11, 2008 Version 2.5 Author Parts Store Items Needed Tools Needed Skill Level Dan Pechonis [email protected] Forum name: MrTexasDan Throttle Body Cleaner *NOT* carburetor cleaner. (Recommend CRC brand) Electrical contact cleaner Must dry residue-free. (Recommend CRC brand) Lint-free cloth Flat blade screwdriver 8mm and 10mm nut drivers or sockets and ratchet 3/32 (2.5mm) drill bit Vise Grips Pliers Phillips-head screwdriver 10mm wrench (for battery terminal) Basic Intermediate Professional Author Comments I own a 2000 XKR. At 82k miles, I was experiencing hard starting and hesitation/rough running when the engine was cold. Also, at any engine temperature when I stepped on the gas from a standing stop, the response was quite jerky and the car lurched. After some online research, I set out to do a little maintenance that probably has never been done on my car (I bought it at 67k miles). Namely, I cleaned the Throttle Body, Mass-Air Flow Sensor (MAFS), and Part-Load Breather Tube orifice. After performing these steps (in less than an hour!), the hard starting and hesitation were gone, the throttle response was smooth, and I got noticeably more power. I have added this procedure to my maintenance schedule for every 10k miles. Many thanks go to Jeff Cline, SidVaga, and Bloodworm for their help and posts on this subject. If I ripped off any of your words, it is only because I couldnt have said it better. Any inaccuracies or omissions are my responsibility alone and not that of these fine people. Corrections or suggestions for improvement would be sincerely appreciated. This document may be freely distributed in its complete and unaltered state, with the authors name and email addresses included. Procedures Clean connectors, hoses, and other parts as you go. This is good practice in general. Clean parts are happy parts. Under-hood plastic is notorious for being brittle and breaks quite easily. Handle with care. Care should always be taken to protect the paint while you lean over the fender. Wash dirt off the bodywork *first*, put covers on both fenders, remove belt buckles, and watch for rivets in jeans or metal zippers, or other potential hazardous bits. Instructions STEP 1 Disconnect the full-load breather tube from the big air intake duct by squeezing as shown. This releases the tangs securing the tube so that it then can be pulled out from the duct. Rotate the breather tube out of the way.