how do you check fuel pressure on 2004 X type
Veteran Member
Joined: Feb 2012
Posts: 1,115
Likes: 567
From: Portsmouth, England
The Jaguar explanation at the time of the deletion of the schraeder valve is as follows:
An alternative is to read the pressure with a suitable scanner. AutoEnginuity certainly reads it. About 55 psi on my 2005MY
The vehicle has a new fuel system designed to meet USA
Federal LEV 2 emissions requirements. Parts affected are:
• Under floor fuel lines.
• Fuel tank assembly.
• Fuel filler pipe.
• Carbon canister.
• Fuel filler cap.
Service Port
In order to further reduce emissions, the fuel rail ’schraeder’
valve is deleted. Should a service port be needed, a new
service special tool will be available to fit between the fuel
rail and the fuel feed line connection.Federal LEV 2 emissions requirements. Parts affected are:
• Under floor fuel lines.
• Fuel tank assembly.
• Fuel filler pipe.
• Carbon canister.
• Fuel filler cap.
Service Port
In order to further reduce emissions, the fuel rail ’schraeder’
valve is deleted. Should a service port be needed, a new
service special tool will be available to fit between the fuel
An alternative is to read the pressure with a suitable scanner. AutoEnginuity certainly reads it. About 55 psi on my 2005MY
Senior Member
Joined: Nov 2014
Posts: 141
Likes: 3
From: Phoenix, AZ
So from what I understand with a normal fuel pressure Gage system it can't be checked? Because I just checked one out from auto zone for a final test to check the fuel pump. So far this is the most helpful thing I've found.
Senior Member
Joined: Jul 2010
Posts: 402
Likes: 90
From: blaine,Mn
My $120.00 Innova scanner reads fuel pressure. Mine is 54Lbs at idle. same one they use at Oreilys.I have used it on many models and years and found that it's what the computer ( in the car) tells or lets out that the scanner can read. More sophisticated ones will read body/ABS and much more.
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