Do i need a new turbo or? please help

Please help with Disco TD5 Auto engine problem. 2000 model

The day after a 600 mile trip from France my disco started to surge when I want power. So any time I want fast acceleration or a boost of speed (kick down), when the revs are just before 3000rpm it starts to surge up and down then eventually finds the next gear.

I can only do about 20mph on a very steep incline and even then this is revving the nuts out of it!

I have not noticed any other symptoms. No thick smoke from exhaust. All levels are good and at granddad (no offence intended to any granddads out there) pace it drives find!

Is this anything anyone has come across before? Are there some checks I can do myself before paying out for diagnostics?

Thanks for your help
J

Try cleaning your mass air flow meter with some carb cleaner.

Try cleaning out the red ECU plug and the MAP (Manifold absolute Pressure) sensor on the inlet manifold.

Also check the turbo hoses inside and out, to make sure there are no splits or de-laminations in any off them. Plus check the air filter to ensure it hasn't imploded.

I seriously doubt this is a turbo problem.

Easy job to check the turbo take the pipe off the back stick your finger in feel the blades make sure there's no play in it

As mentioned the pipes can de laminate inside take off the inter cooler pipes check for that also excess oil in them

Air filter may be the cause too

according to what i understood(but i might be wrong with my english) is that it revs up ok just doesnt run well/change gears and if it's so it's deffinitely not turbo/boost issue... so first move woulf be a autobox oi/filter change change, give it a stall test just to rule out some clutch slippage

Stall test

Testing
1. Chock the wheels and fully apply the
handbrake.
2. Start the engine and run it until it reaches
normal operating temperature.
3. Apply the footbrake and select 'D'.
4. Fully depress the accelerator pedal and note
the tachometer reading. The figures should be
as given below. Do not carry out stall test for
longer than 10 seconds, and DO NOT repeat
until 30 minutes have elapsed.
l V8: 2200 to 2400 rev/min
l Diesel: 2600 to 2800 rev/min
5. A reading below 1300 rev/min indicates a
torque converter fault, ie stator free-wheel.
6. A reading between 1300 and 2200 rev/min (V8)
or between 1300 and 2600 rev/min (Diesel)
indicates reduced engine power.
7. A reading above 2400 rev/min (V8) or above
2800 rev/min (Diesel) indicates clutch slip.
NOTE: The figures quoted above were
measured at sea level with an ambient
temperature of 20 °C (68 °F). At higher altitudes
or higher ambient temperatures, these figures
will be reduced.

Click to expand...

Thanks for all your responses. ill test all these out over the weekend. I have however just read some disturbing reviews that say that it could be coolant in the autobox! And yep you guest it i have had to put about 1.5ltr in the last 6 months. AAAAAAAAHHHH

jedmundson said:

Thanks for all your responses. ill test all these out over the weekend. I have however just read some disturbing reviews that say that it could be coolant in the autobox! And yep you guest it i have had to put about 1.5ltr in the last 6 months. AAAAAAAAHHHH

Click to expand...

Hello mate, just think about it this way - how could coolant get into the autobox?

The oil circuit for the 'box is COMPLETELY separate from the coolant circuit.


Cheers

Dave

He means atf