Mechanic and autoelectrician

**JWM** · 22nd November 2012, 07:02 AM

I have a 93 Vogue SE automatic with some odd issues and I wondered if anyone knows a mechanic and autoelectrician in the Penrith/Lower Blue Mountains area who is an expert on Range Rovers?

The idling is variable. When warmed up the idling seems to race then drop back to very low/almost stall levels, the keeps repeating the cycle. Doesn't do it all the time but more often than not. Also if idling normally (or at least at a reasonably constant rate) when move into Drive or Reverse at times the idling drops right down to almost stall (and sometimes does) then picks up again.

The electrical issues are varied - from intermittent working of the central locking to instrument lights not working (including heater controls and clock).

I think I need expert help.

**PhilipA** · 24th November 2012, 11:00 AM

The idling issue is probably different to the others and is quite common.

The usual cause is a dirty or dying Stepper motor.

This is located at the RH rear of the plenum chamber with 4 wires going to it. Do NOT try to pull out the shaft as it screws out and is controlled by a stepper circuit in the ECU.
Unscrew it and clean the housing with some brake cleaner and cotton buds and clean up the "cone" as well. It is also a good idea to undo the rubber hose from the MAF to the throttle body and clean inside around the throttle blade and the blade itself.
If this doesn't help or helps a little, then you probably need a new stepper motor. They are now cheap on ebay but be careful as I have a had a mixed experience with these, but to be fair , the most recent I bought is good. They are the same as many GM cars.
Regards Philip A
PS The instruments etc are probably a bad earth somewhere.

**p38arover** · 24th November 2012, 01:24 PM

Originally Posted by JWM

I have a 93 Vogue SE automatic with some odd issues and I wondered if anyone knows a mechanic and autoelectrician in the Penrith/Lower Blue Mountains area who is an expert on Range Rovers?

Give LR specialists KLR Automotive at Kingswood a call on 4721-3675

**JWM** · 24th November 2012, 05:46 PM

Thanks Philip and Ron. I will have a crack at cleaning the Stepper motor. If things don't go as planned will contact KLR. Good to know there is an expert nearby.

Haven't worked out how to do the thanks post yet.

Regards, John

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