Multiple Misfire and Cruise not available?

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Jun 19, 2009 | 07:24 AM

nachius

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Multiple Misfire and Cruise not available?

I recently purchased a 2002 3.0 X-Type and have not have a chance to drive it much due to the above issue and just kind of looking for help and troubleshooting advice.

Here is the background:
2002 3.0 X-Type w/ about 70k on it
Car is in limp mode due to misfires in 1, 3, and 5

Valve cover gaskets and plugs have been change and with it being all of a single bank I didn't think it would be the coils?

I read that this is "commonly" caused by the IMT seals, but where exactly are they and does anyone have a picture of location?

Vaccum Lines? Which ones to check and where?

Fuel "seems" to not be an issue.?

Any tips or tricks for troubleshooting a multiple misfire in 1,3,5 w/ cruise not available and an Service Engine light won't rev past 3-4k?

Jun 21, 2009 | 02:47 PM

nachius

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List beginning

This is what I have to check so far:

2 IMT Seals
Breather hose
brake booster to intake hose

Can someone explain exactly where the IMT seals are?

Jun 23, 2009 | 09:03 AM

JagXV6

Senior Member

Joined: Aug 2008

Posts: 326

Likes: 16

Here you go:

https://www.jaguarforums.com/forum/s...highlight=ring

Jun 25, 2009 | 09:46 AM

Jaguardoc504

Senior Member

Joined: Dec 2008

Posts: 139

Likes: 2

From: Maine

In my experience it wouldnt be a stretch to assume the coils are bad. However it def. sounds like a vacum leak. Check the intake manifold seals as well. try using a little bit of prorane/hair spray/ around the intake if you get a fluctuation in the idel then you know you have a leak.

GL

Jun 26, 2009 | 06:22 PM

TexJag

Junior Member

Joined: Apr 2008

Posts: 24

Likes: 0

I had the same problem at 127,000 miles. A couple of the coils were bad when they tested them. Replaced them all and the plugs. What a difference. Even gained better gas miliage and acceleration.

Jun 28, 2009 | 01:57 PM

Chas944

Senior Member

Joined: Nov 2007

Posts: 210

Likes: 3

From: Oconomowoc, WI

I had this very same problem 2 months ago. First thing I checked was vacuum hoses. My culprit was the large diameter hose running from the PCV valve on the A-side bank (close to front of hood) to the intake for the positive crankcase ventilation. The original hose is smooth and had a 2" long rip in it. When I twisted the hose back and forth it either closed the rip or opened it wide open.

The updated hose has reinforcement ribs for strength.
Hope you find the problem soon. You can always take your car to an Advanced Auto or Auto Zone and have the codes run.