Question about 1989 Jaguar XJ6

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Flutter Hello, I have an 1989 jaguar 6 cylinder sovering or xj6. It was sitting around for 2 years and had a leakey fuel line. I just bought it. It started pretty rough with new fuel. After i repaired the line it idled perfectly. Now when i press the gas pedal, it flutters at 1300 rpm. Basically reachs 1300 the back down to 1100 every 0.5 seconds. My friend has an 87 and the distributor configuration is the same. also I replaced the fuel filter and there is lots of fuel pressure at the fuel rail. last week if i let it sit a bit maybe a min. i could rev it up to 5000 and hold for maybe 20 seconds then it would start to flutter and then drop to idle and then back up to about 1500 then back to idel at an interval of about 1 second. Where would you recomend that I investigate? Thanks Hope you can help me!! Nick Optional Information: Year: 1989 Make: Jaguar Make (other): xj6 Model: soverine Engine: 6 cylinder

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  • tberan1 May 11, 2010

    The fuel pressure, when at 5000 RPM does it hold well yet or does it drop off? Tom


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I would replace the O2 sensor on general principles and have a look at the screen sensor for the air flow sensing unit just ahead and slightly right of the coolant tank and behind and in line of the air filter housing. That little screen and its readings along with the O2 sensor and various other sensors can really mess up the idle and fuel consumption. The little sensor screen can be washed and cleaned of **** with alcohol and it will work as new. the O2 sensor needs a lot more persuasion

Posted on Oct 24, 2009

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