Thread: Running rough - power issues

I take knowledge where (and when) I can find it and seek advice when I need it. At the moment I'm theory rich but experience poor; trying to plug a few gaps before I get on the practical and potentially costly learning curve of this job.

Collective knowledge and the willingness of individuals to contribute to it is what makes this forum (and Land Rover ownership) so great. Funnily enough it's also what separates humans from the majority of other animals.

A little philosophical for a power related thread perhaps, but my way of saying thanks to those who contribute.

Cheers all.

(a morning off work seems good for the soul )

Originally Posted by mools

From steady revs cruising on the highway if I put my foot down, to overtake for instance, I'm not getting the fast response I used to get. Increasingly frequently the engine seems to choke, I get no power, like the engine tries to respond but gets over ridden - engine chugging and feeling a bit rough. I then have to drop off the power to get a smooth feel back and pull back in behind the vehicle in front with the feeling of embarrassment which accompanies a failed over taking attempt. Strangely though if I feed power on very slowly this doesn't seem to happen, it just takes too long.

Mools, be sure to check your fuel pump and filter as well. It could be that the pump is not performing 100%! So when you accelerate slowly, it can cope, but as soon as you put foot, it cannot keep up and staves the engine of, leading to the chugging/choking.

Naks,

I reckon I've got to the bottom of it - well side-steped the issue until I do the EGR blanking job. Appears to have been an EGR valve issue - no valve = no issue .

The fuel filter is 2k old and the fuel pump just makes it's usual noise. But I want to ask - how can you check the fuel pump? I'm sure that there'll come a time when I'll want to know this. I know where it is, how to get to it (don't really want the drama though - I have slide draws bolted in the back, a tow bar and second tank.... big hassle to cut through or drop the tank) but how would you check it's condition?

I've only found one post referring to actually checking the fuel pump td5 Def Fuel pump noise & loss of power??

Which suggests "plug a pressure gauge in (back of engine, in front of bulkhead, steering wheel side). Go for a drive it should maintain 4 bar at tickover and right through the rev range."

But I'm not sure what this coupling is and how one would go about attaching a gauge to it, Do you know? Or do you have a different way of checking the pump?

Thanks,

Mools