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Discussion Starter #1
Hi All,
I own a 2003 Rangie with 103k on the clock. Lately the ‘Service Engine Soon’ warning light has been illuminating for a day or two then extinguishes, then I may not see it again for up to a month or so. I’ve had the code read at the local AutoZone and it indicated a ‘Crank Position Sensor’ error. Also, with this warning light on or off the tach & engine surge slightly up & down while under 2000 rpm and I’m also hearing a low moaning sound which sounds like a ship’s fog horn from a distance. If I switch to manual mode I do not get any of these symptoms and she drives great. Also, starting hasn’t been an issue with any of the above scenarios present.

Atlantic British sells a "Sensor Crankshaft Position" http://www.roverparts.com/Parts/NSC000050G.cfm module.

Could this be the cause of this issue and if so has anyone changed one of these DIY style? I do have the shop manual and have located this sensor in the manual but haven’t actually gotten under her to see physically where it’s located.

Thank you in advance for your kind responses…
 

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2002-2005 Range Rover MkIII / L322
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Regardless of what "Autozone" may have told you this sounds a lot more like a problem with your PCV system. It can make a noise as it sucks air in where it shouldnt. Have you investigated this already?

Dan
 

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In case you do end up needing to know where the crankshaft position sensor is…..it takes its signal from a reluctor ring attached to the engine flywheel/converter drive plate so the sensor itself is mounted (with a single bolt) on the transmission bellhousing, near the bottom on the RH side of the vehicle.

There’s no back up system for this sensor - if it fails your engine will stop. To ensure a strong signal it must be shimmed to give a nominal air gap of 0.55mm.

Phil
 

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geez RRPhil posts are so good, im starting to get embarrased by my weak attempts at "helping"
 

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Discussion Starter #8
Thanks all for your responses.
I’ve done a some-what thorough inspection (best I could without removing the hoses), of the two PCV hoses and found no obvious damage. The Service Engine light has not resurfaced since my original post. However, the tach/engine surging and the low drown type sound do remain. Looks like a trip to the dealership to have them sort this issue out.
 

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2002-2005 Range Rover MkIII / L322
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RangeIsRover said:
Looks like a trip to the dealership to have them sort this issue out.
If they are local ring them and ask them if they still do the 50 point free health check. This will often pick things up that they would like you to pay to get fixed. Then armed with that info you can come back to us and let us advise further.

Dan
 

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Discussion Starter #10
Greetings All,

Just an update on sorting out my current issue. Dropped the Rover off at the dealership and they’ve informed me, as did several posters, that the breather tubes (PCV) where shot. And this probably is the cause of the sound I was hearing. At this point they’re only speculating as they do not have the two hoses in stock but will have and installed tomorrow. They also mentioned if this doesn’t fix the tach/engine surge issue that they’d have to dig a bit deeper. So hopefully replacing the hoses will sort out both issues.

Thanks all for your replies…
 

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RangeIsRover said:
Greetings All,

Just an update on sorting out my current issue. Dropped the Rover off at the dealership and they’ve informed me, as did several posters, that the breather tubes (PCV) where shot. And this probably is the cause of the sound I was hearing. At this point they’re only speculating as they do not have the two hoses in stock but will have and installed tomorrow. They also mentioned if this doesn’t fix the tach/engine surge issue that they’d have to dig a bit deeper. So hopefully replacing the hoses will sort out both issues.

Thanks all for your replies…
Thanks to Dan I believe.... :clap:
 

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Discussion Starter #12
Latest update.
Got the Rover back from the dealership yesterday. They replaced the two PCV breather hoses. Unfortunately this did not resolve any of the issues I have been experiencing. In addition, the ‘Service Engine Soon’ light came on again this morning after being off the past two weeks. Going to AutoZone and have them scan again. And of course I was told after the tech made the repair he drove it for at least 5 miles and didn’t find anything. I find that really hard to believe.
 

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Discussion Starter #14
Thank you for your response.

A trip back to AutoZone indicated P0348 - "Camshaft Position Sensor-Bank 2 High Output”. The dealership did indicate there were no stored codes at the time of service.
 
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