What causes high idle speed in Jaguar XJ6?
Also check for air leaks in the inlet bellows and be aware that a faulty throttle assembly (throttle not closing fully due to gumming up and/or faulty ISCV (Idle Speed Control Valve) can cause a high idle speed. To reset the ISCV (Idle Speed Control Valve):
What kind of engine did the Jaguar XJ6 have?
A V12 engine joined the inline 6-cylinder for 1994, developing 301 horsepower. All Jaguar sedans had a 4-speed automatic transmission, but the one used with the V12 engine was made by General Motors.
What is the fuel pressure gauge on a Jaguar XJ6?
To eliminate these I bought and fitted a Fuel Pressure Test Kit – currently eBay item 250771928164 Simple and effective; I bought the back entry 60psi gauge and have left it in place permanently.
How to turn off the engine on a Jaguar XJ6?
The sequence is get someone to switch on the ignition to position 1 then tell them to switch off once the valve has retracted, failure to do this and the valve will then wind forward looking for the valve face, as it is not there it keeps on winding out.
Also check for air leaks in the inlet bellows and be aware that a faulty throttle assembly (throttle not closing fully due to gumming up and/or faulty ISCV (Idle Speed Control Valve) can cause a high idle speed. To reset the ISCV (Idle Speed Control Valve):
Why is my Jaguar XJ6 Series III not starting?
In an early incidence, trying to ascertain my no-start problem, I found the Temperature Sensor on the top of the water manifold to have a defective connection. While the car was running, I fiddled with various wire connections to see if a bad electrical connection elsewhere was the culprit.
What should fuel pressure be in Jaguar X300?
The fuel pressure gauge in the flexible pipe should show a steady 38psi with the engine running, this varies a little with inlet vacuum as the engine is revved up. Just for completeness – a rogue MAF (Mass Air Flow meter) can give idle dip and lumpiness and/or a hot restart issue.
What was original resistance of Jaguar XJ6 engine?
The original sensor tested OK – with resistance of 1,250 ohms and inductance of 1 henry. However the replacement sensor seemed to cure the problem – almost! The engine would now rev to 3,000rpm – more than enough power to drive around. But it wasn’t right and still misfired.
Why does my Jaguar XJ6 not start up?
About half of the time, the reason why the Jaguar XJ6 will not start or quits running is because of the two main electrical problems that I described above. The other cause of the XJ6 not starting or quits running is the fuel system. Mostly, it is the fuel pump being killed by rust flakes from the two fuel tanks.
What kind of transmission does a Jaguar XJ6 have?
Jaguar XJ6 Service and Repair Manual 3261 Jaguar XJ6 Models covered Jaguar XJ6 models with 3.2 litre (3239 cc), 3.6 litre (3590 cc) & 4.0 litre (3980 cc) six-cylinder in-line dohc petrol engines and automatic transmission
When did the Jaguar XJ6 start and run?
I now want to tell everyone how to make the Jaguar XJ6 manufactured from the early 1970s through the early 1980s start and run. I had previously not wanted to tell very many people, so that the price of these cars would continue to stay very low, and I would be able to buy many more of them, hoard them for myself, and save them.
What kind of interior does a Jaguar XJ6 have?
The seats were leather, the doors had leather trim, the dash board was fine wood veneer. The gauges were high quality and craftsmanship Smiths gauges. Wealthy people bought the Jaguar XJ6, knowing that these cars had a reputation for breaking down frequently.