Hi All,

I have a 2001 2.5 DHSE P38 and have recently noticed that on declaration at about 20 mph downwards there is a wobble/vibration that is felt through the car. It disappears when I provide the engine with some revs.

Could this be a wheel balance or something? Any ideas? I have changed the fan belt which broke and the idler pulleys and belt tensioner arm + pulley. I also changed a wheel but it was fine until the mechanical work was completed.

Regards,

Hi All,

I am aware of the torque setting information in Rave but for example I replaced the fan belt tensioner ram and idler pulleys today. There are no torque setting I could see on Rave for these items.

So what do you all do? Tension to 25nm?

Ahhh right. That might explain the dips in the revs.

Does the diesel not increase the fuel/revs when the AC engages? If it does, what controls this feature?

Yes, it dips when the AC clutch engages which I understand is normal. But then it continues to do so every 30-60secs.

Perhaps I am being stupid but once the clutch has engaged, does it remain engaged until the ac or engine is turned off?

Many thanks

Tom

Dear All,

Quick questions for you, on the dirty diesel, what controls the fueling at idle. My understanding is:

MAF is only used when an EGR is in place

MAP sensor determines the air density which in turn determines the fueling - is this at idle for just normal engine running?

Idle Control Valve - the diesel doesn't have one of these

Air temp sensor - as the name states

The reason I ask is that every 60 seconds or so my revs dip on idle and recovers. This doesnt happens when AC is off ( new ac pump has been fitted so not that). I thought it could be a sensor or something. I have a replacement (second hand) 4th injector installed which I hope rules that out as being an issue. Could it be the Crank Position Sensor?

Many thanks

Tom

Hi All,

I keep getting an Alternator fault coming on my dashboard but the car runs fine for the time being. Suspect that the Alternator is on its way out.

Which brand would you recommend as a replacement?

Tom

Two questions:

1. Was this a feature offered when the P38 was in production?

2. If so, what level of tinting was offered? i.e. 80% rear? or 70% rear?

Thanks,

Tom

Hi All,

I was reading a few posts about this and was surprised. I can't imagine much more comfort in a vehicle.

Anyone got experience of both and can enlighten me?

Tom

Here is a question for those in the know - process on Rave but not final torque value.
P38 2.5 diesel
Cylinder head bolts.
Tightening sequence
Stage I tighten to 80 NM ( as per laid down sequence.
Stage 2 Loosen 180 degrees.
Stsge 3 Tighten to 50 NM
STAGE 4 TIGHTEN 90 DEGREES.
STAGE 5 Tighten a further 90 degrees.
STAGE 6 Run engine for 20 minutes till operating temp is reached.
STAGE 7 Let engine cool down.
STAGE 8 Tighten a further 90 degrees.
Now for the question. What is the final torque value on completion of stage 8 ???
Assistance appreciated.

Richard - good to hear from you. Yes, they work fine as long as you get the High Resistance Version. There are plenty of people on the RR P38 Upgrades Facebook group who have installed them.

High Resistance
Designed for vehicles which require a higher resistance over conventional LED bulbs to eliminate quick flashing or dashboard errors.

Hi all,

I am looking at getting the following from Autobeam:

1. Reverse light - https://autobeam.co.uk/collections/led-reverse/products/led-382-performance-reverse-unit

2. Numberplate light

3. Brake light

Could anyone provide the correct links for number 2/3?

Tom

BrianH wrote:

A once over of the propshafts also wouldn't go amiss. Is it a manual or Auto? Petrol or Diesel?

Thanks for your replies, it is an auto diesel

Hi All,

I recently bought a 2001 P38 which I am trying to bring up to as good a condition as possible. This will include a full respray and recondition of interior. In addition, I am putting together a list of jobs of items which will have deteriorated with a 19 y/o RR. Rather than wait for them perish or not work, I would replace them now with good quality parts that should then last. I have created the below list, is there anything else you would add?

1. New Air Bags
2. New ball joints
3. Wheel hub seals
4. Discs and pads
5. Thermostat
6. Water pump
7. Viscus Fan
8. Suspension bushes
9. Coolant flush

Thank Tom

Simple question, does your p38 have the driver side front handle missing from the roof?

Tom

Hi All,

I have just bought one of these for my diesel p38. Has anyone else fitted on and what has been there experience?

Allegedly they improve mpg, power, torque, etc. Not sure this is true, so thought I would ask from someone who has already done it.

Quite!

I would never go and buy a vehicle and use an independent inspection again. I think they don't have the knowledge of these vehicles.

It a shame I hadn't spent more time on the here before buying the vehicle as it was from your area.

Thanks for the replies everyone.

My turbo hose burst last night so I am looking for a hose kit and I understand that the silicone hoses are the better ones to go for. I understand that being a late 2001 2.5 diesel, I will need the EGR version?

Is there a silicone coolant hose kit available anywhere?

Hi All,

I have a 2001 P38 DHSE with c. 118,000 miles on the clock.

It has had its Head Gasket done in the last 2 years. However I have noticed that is has been using coolant. The was checking the levels yesterday and noticed no coolant in the Expansion tank! It required c. 800ml to fit the system up. The temp gauge hasn't moved from the middle.

I would like to eliminate a leaking pipe, where are the common places that the M51 engine could leak?

I have checked the oil cap and can't see any white looking mayo.

Many thanks Tom

No pictures?

Okay for the benefit of the forum. FYI My 2001 P38 has the alphine headunit. There was no radio lock code, however all the buttons went dead on the steering wheel and radio itself after installing the Parrot. I simply left the car overnight and in the morning it had reset itself and everything worked fine.

Hope this helps someone.

Tom