Thread: V8 Discovery Lack of Power

D2's suffer from airflow meter failures which will cause massive leanness, IE backfiring and no power. Also, the in tank pumps have been known to fail at relatively low miles due to the filter being part of the pump unit and is NOT serviceable WHAT WERE THEY THINKING!!!
They have no distributor, coils packs are at the rear of the engine behind the inlet plenum.
The airflow meter issue is so common I keep one on the shelf

JC

Car has sequential injection lpg aswell - didn't want to bring this into the discussion as it is the same between petrol and lpg.
MAF - yes I know all too well about these, maf should be ok.
Filter - has one retrol fitted
I'm thinking it's a heat problem, because both times the car has sat at the shops then driven and the problem has occured. Once cooled car works well. I've been looking into getting a ECT Temp Sensor and fit it, only $60 - rather than taking to a LR guy as he'll do the same until he eventually replaces everything.
So assume car doens't have lpg - don't want to go down the whole lpg theory road, just petrol.
Thanks.

After 12 years of servicing - I have found the most common cause of this has been a crappy Distributor Cap and Rotor button.
Repco swore black and blue their aftermarket bosch gear is correct. But until I fitted original LR parts these things keep dying a slow death. It will get slowly worse until it won't even start one day.

Originally Posted by cafaas

After 12 years of servicing - I have found the most common cause of this has been a crappy Distributor Cap and Rotor button.
Repco swore black and blue their aftermarket bosch gear is correct. But until I fitted original LR parts these things keep dying a slow death. It will get slowly worse until it won't even start one day.

No dizzy in his model ... crank sensor & coil packs

I'm with JC here. Could even be breaking down coil pack.

But I'd go MAF then substitute coil packs to check.

Pete