neiloakley

I have a problem with my 2007 TDV8 Vogue. The power steering is heavier than it should be (and compared to my other TDV8 vogue). Had the car a month and issue has been there since I bought it (it was very cheap so couldn't say no). Symptoms: Steering is heavy regardless of engine speed Road speed seems to make no difference (although less noticeable at higher speed due to less steering input required) Very occasionally, the steering will be light after start up but not managed to link it to any other event that would cause it to go light Sometimes when starting, the instrument cluster turns off for a split second and then goes through it's start up procedure when the engine is started. Not sure if this is related Things Tried: New servotronic valve New BCU (or GEM as they are known on the 07MY). Hours of internet forum searching. I understand that on models up to 2007, the servotronic valve was controlled by the BCU and would open and close depending on a speed signal the BCU got from the ABS ECU. However reading the 2007MY workshop manual, the BCU has now been renamed the GEM (general electronics module) and the description of it's function makes no mention of the Servotronic valve. I was hoping to find some wiring diagrams to confirm that. One other 'specialist' said the steering column joints may be stiff, but that doesn't explain why it would go light occasionally. I'm unsure if the quirky instrument cluster is related or not, it could cause a CAN BUS fault, but on the 06MY the speed signal from the ABS ECU to the BCU was hardwired and did not use CANBUS, and the servotronic valve was hardwired to the BCU so cant see that would cause the issue. One person on the web fixed their instrument cluster with a new ignition switch (was only providing 9v output on the switched live during cranking hence the instrument cluster went down, cranking power to the engine was 12.6v). I will check the ignition switch this weekend, but dont hold out hope of that fixing my steering issue. Anyone have any ideas, or come across the issue before? There is a serious drink (or cash alternative) to anyone that comes up with the solution!!!!! Thanks in advance Neil

Well it was indeed the intake pipe restricting the airflow as suggested on the RR forum. thanks Gav for the tip

Someone suggested delamination of the intercooler-to-manifold pipe. Anyone come across that? Apparently the pipe falls apart inside and i could have a flap of rubber which blocks the airflow

Posted on RangeRover forum. Lets see if they can come up with anything. Cheers

Hi Girlfriends 2.5 diesel P38 has been playing up recently. It goes into limp mode (no boost and very smokey) occasionally. Usually it happens when sitting at between 70 and 80mph on the motorway. Sometimes the power comes back after a few minutes and othertimes you need to switch the ignition off to sort it out. Otherwise it will struggle to reach and mantain 60mph. Temperatures are all fine. No MIL light, and no fault codes (well not according to SnapOn Modus) Had a search on here and the closet thing I could find is an example when the same engine was going into limp mode when you hit full throttle, except in my case i'm not using full throttle and it's still happening. The solution for that was a new MAP sensor. Anyone experienced anything like this? With no fault codes i'm assuming it's a dodgy sensor rather than a problem with the engine. Any help would be much appreciated. Thanks