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  1. M

    3.9 V8efi - Missfiring at random?

    Ok everyone, did a compression test today and I am a little confused Readings where: 1 = 140psi 2 = 150psi 3 = 150psi 4 = 140psi 5 = 150psi 6 = 150psi 7 = 150psi 8 = 150psi But, one one of the cylinders I found that the spark plug was covered in some odd grimy like substance which was pretty...
  2. M

    3.9 V8efi - Missfiring at random?

    Thank you listerdiesel, I was looking in to the RAVE guide for the classic and noted that on start up my idle appears to sit too high before the stepper motor brings the idle down to roughly 1,000rpm, I have set the the idle using the alan key on the throttle body to around 550rpm at warm idle...
  3. M

    3.9 V8efi - Missfiring at random?

    Hello all, I am having a strange, sort of intermittent problem with my 1992 Range Rover 3.9efi. It seems to run rough when just running around town, idling or generally slow driving, but when you put your foot down it appears to clear up and run smooth. This happens around 8 times out of...
  4. M

    3.9i V8 Range Rover loosing coolant?

    Thank you for the info everyone, it appears I am still loosing coolant, so I will give the inlet manifold gasket a go. May I ask, why is there a coolant supply to the intake manifold anyway? Thanks, Michael.
  5. M

    3.9i V8 Range Rover loosing coolant?

    Thank you MartynV8! I had a quick look over it today and topped up/bled the system using the bleeder on the radiator and the bleeder which sticks up from the block (a metal pipe I hadn't noticed before) and took it for a run. Let the engine warm up, stopped it for 5 mins and then fired it up...
  6. M

    3.9i V8 Range Rover loosing coolant?

    Hello! Thank you for the welcome! When I bought the the RR, it was low on coolant, the previous owner assured me that there was a "mystery leak" somewhere between the engine and the heater matrix, and supplied me with a spar P38 matrix which isn't the correct size, I can't smell any coolant...
  7. M

    3.9i V8 Range Rover loosing coolant?

    Hello all, I am new to the forum and thought I would join after recently picking up my 1992 Range Rover classic! I love the beast but it has a unquenchable first for coolant and I was wondering if someone could give me some pointers? Symptoms; Engine always runs bang on the same...
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