Flat Spot at low revs...

Hi,

On the whole, my 1999 110 runs fine...well I am happy with it anyway. However, sometimes, I have to get the revs high for it to 'bite'. This only happens when I slow down for example, then press the throttle, it goes 'flat'....then I have to either change down into a (not needed) lower gear or clutch right down, rev up then let the clutch out. Sorry, not a particularly articulate description but its the best I can do. What dya think, fuel pump, fuel tank breather? It feels like 'limp mode'....but its not - Injector washers and seals done recently, new return valve on fuel filter housing and new fuel filter....

Cheers

Not 100% on this one but if memory serves this was an issue with early Defender td5's and according to a mate who had one a real pain when towing. One just had to learn to keep the revs up some he said.

tottot said:

Not 100% on this one but if memory serves this was an issue with early Defender td5's and according to a mate who had one a real pain when towing. One just had to learn to keep the revs up some he said.

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Bugger! I think I'd read something similar....good new is if true, I'll have time at the weekend to find something else that needs fixing!!

Do you still have the EGR valve fitted?
It is possible this is an issue.
I have found the EGR actuator (rubber mounted to the inner wing) are sometimes fitted in the horizontal position even from Land Rover. The manufacturer of the actuator recommends it's fitting in the vertical (pipes at the top) for reliable use.
The EGR valve has two primary settings: open and closed, although the position can vary anywhere in between. The EGR valve is closed when the engine is starting up, during idle and at low speeds when only a small amount of power is required, and therefore only a small amount of oxygen, so the valve gradually opens as the engine demand increases – it can be up to 90% open at just above idle. However as more torque and power is required, for example during full acceleration, the EGR valve closes to ensure as much oxygen as available enters the cylinders.
If you don't have your EGR then ignore this.

Tim4x4 said:

Do you still have the EGR valve fitted?

If you don't have your EGR then ignore this.

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Nope

Thanks tho!