Vehicle & Technical > Defender

TD5 strange loss of power

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ciganka:
Hi all, do any of you have any experience of the following with TD5:

I attempted 2 climbs last week requiring a lot of power. I used low first and gunned it up.

During both climbs the revs suddenly dropped off and seemed to automatically hold themselves at a fixed level-  far lower than what I wanted.  Fortunately I made both climbs, but I had never experienced this before and she's been laned quite a lot over the last few months. She's always seemingly had a never ending supply of power. But this sudden rev drop was quite dramatic and noticeable.

Is this normal (and it just so happens I have never pushed her so hard in low first before) ? Or is this a problem?

I've experience no other syptoms AT ALL with her. The engine runns at a good temp and there doesnt seem to be any excessive smoking (at least from what I have noticed). She's 2003 and to my knowledge hasn't been deep waded before.

All thoughts gratefully received as I'm new to TD5.

burgerman:
 Not sure of any connection, but the "mapping" is different in high n low, basiclly you need much more travel on the loud pedal to reach desired revs,

 Got somthing to do with better throttle control when on rough terrain

  the first time i drove wifeys TD5  90 i had some embarrasingly  failed hill climbs  due to this reason ( i found out this info at a later date )



   Just a thought  :-k

Mr Bump:
Flat out in low first is a scary thing!  BANG!!  :shock: Is there a rev limiter or some electrickery magic thing built into the ECU?

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