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    4.6 Thor P38 MISSING! Running Lumpy

    Thanks Guys!
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    4.6 Thor P38 MISSING! Running Lumpy

    Compression Test done! Results: Cylinders 8 - 170 psi 7 - 155 psi 6 - 170 psi 5 - 150 psi 4 - 170 psi 3 - 80 psi 2 - 175 psi 1 - 80 psi Conclusion: Seems like the HeadGasket has let go, across cylinders 1 & 3. At least I know what the problem is now!! :)
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    4.6 Thor P38 MISSING! Running Lumpy

    I'll do a compression test, but how would that tell me the condition of the camshaft? I'd be able to tell if any valves were burnt out, but surely if the camshaft was worn it wouldn't make much difference to the compression? I'll do a compression test now. :confused:
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    4.6 Thor P38 MISSING! Running Lumpy

    Range Rover is running REALLY badly! Here is the actions I've taken so far (all factory parts): 1. New (expensive) spark plugs. 2. New MAF sensor 3. Took it to a Land Rover specialist to use his diagnostics computer. - This showed up that the Range Rover is not firing on cylinders 1, 5...