hi all my dad has a 53 plate disco td5 auto. it has a gear change fault. when u put accelerator pedal to floor it gets to bout 3000 rpm is an starts jerkin. best way of explainv it is it feels like it hits a rev litmiter in a petrol car. if u let of accelerator bout 1/4 it will carry on the. an change gear normaly.
sierrafery
Well-Known Member
if you compare that with a stall test result it leads to clutch slip
jamesmartin
Well-Known Member
auto has 6 multi clutch packs in it ,to see if a clutch is an issue drain some oil out if its blackish and smells burnt you have 1 or more burnt clutch packs
sierrafery
Well-Known Member
did you think i was talking about stall test on a manual?
check out the attachments(from the workshop manual).... concentrate on nr 11 in the section view and point 7 of the stall test
Attachments
wee_jada77
New Member
+1 on the oil being low. I had the same problem before I sorted all my leaks. Now the leaks are fixed and the oil is at the correct level the problem has gone away.
Landshandy
Active Member
Fingers crossed this is my experience too. I got the same when I put my foot down, a jigging and losing revs. Having it diagnosed on Wendesday morning, fingers crossed :S
Bardley
New Member
Check the Turbo Modulator first.... +1 [emoji651] on over boost symptoms....
Its the small square unit hidden behind the MAF.
Check all the small pipes **carefully** for splits etc.
Check the turbo mod actuator rod is free to move ( they are stiff by nature, and require some force) lightly oil and work back and forth.
This is a great source and reference for all... (Haynes could learn a thing or two..)
http://www.discovery2.co.uk/wastegate.html
Could be alot cheaper than leaping in with the gearbox.
Its the small square unit hidden behind the MAF.
Check all the small pipes **carefully** for splits etc.
Check the turbo mod actuator rod is free to move ( they are stiff by nature, and require some force) lightly oil and work back and forth.
This is a great source and reference for all... (Haynes could learn a thing or two..)
http://www.discovery2.co.uk/wastegate.html
Could be alot cheaper than leaping in with the gearbox.
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Landshandy
Active Member
Yeah I've been chatting to the guy who did that site I'll give that a go cheers
I'll give that a go cheers
Landshandy
Active Member
Turns out the injector has gone , still better than a new gearbox!
, still better than a new gearbox!
