Can anybody explain what is happening? I am driving along and go to change up a gear but instead of going from 4th to 5th it jumps to a lower gear.
The change down is violent but there is no crunching or anything. It is as though I had chosen the wrong gear, but I had no choice in the matter.
This only happened 2 or 3 times yesterday, and I didn't have time to make all the observations and analysis I would like to have done. Especially as this problem occurred in a busy traffic situation causing people following me extreme alarm, as presumably no brake light was visible to them when I slowed down so fast.
All clues as to what to look for will be welcome.
C5 X7 Manual gear problem
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- mypinknee
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C5 X7 Manual gear problem
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Re: C5 X7 Manual gear problem
Please pop your VIN here so I can check the exact box you have and for any applicable any TSBs.
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Marc
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Re: C5 X7 Manual gear problem
I'm unclear whether this is a manual gearbox or an auto gearbox used in manual mode.
As I get older I think a lot about the hereafter - I go into a room and then wonder what I'm here after.
Inside every old person is a young person wondering what the hell happened.
"Trying is the first step towards failure" ~ Homer J Simpson
Inside every old person is a young person wondering what the hell happened.
"Trying is the first step towards failure" ~ Homer J Simpson
- mypinknee
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Re: C5 X7 Manual gear problem
VF7**************[VIN obfuscated, can be read by forum staff]GiveMeABreak wrote: ↑15 Dec 2019, 11:38 Please pop your VIN here so I can check the exact box you have and for any applicable any TSBs.
My other car is a 2cv
- Paul-R
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Re: C5 X7 Manual gear problem
So it sounds like when you're going over from the 3rd/4th plane to the 5th/6th plane it's actually staying in the 3rd/4th plane and you then select 3rd instead of 5th.
Does it feel as though you're going into the 5th/6th plane, i.e. is there some resistance, or is it just a "looseness" moving over?
Does it feel as though you're going into the 5th/6th plane, i.e. is there some resistance, or is it just a "looseness" moving over?
As I get older I think a lot about the hereafter - I go into a room and then wonder what I'm here after.
Inside every old person is a young person wondering what the hell happened.
"Trying is the first step towards failure" ~ Homer J Simpson
Inside every old person is a young person wondering what the hell happened.
"Trying is the first step towards failure" ~ Homer J Simpson
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Re: C5 X7 Manual gear problem
I’ve had a similar issue on a C5 X7, it was the ball joints where the gearbox cables join the gear linkage. They needed cleaned and greased. One was seizing/sticking so the wrong gear was being selected.
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- mypinknee
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Re: C5 X7 Manual gear problem
There was no resistance at all and it frightened me nearly to death!Paul-R wrote: ↑15 Dec 2019, 12:14 So it sounds like when you're going over from the 3rd/4th plane to the 5th/6th plane it's actually staying in the 3rd/4th plane and you then select 3rd instead of 5th.
Does it feel as though you're going into the 5th/6th plane, i.e. is there some resistance, or is it just a "looseness" moving over?
It only happened three times on my way out. The return journey was fine and the fault did not reoccur.
My other car is a 2cv
- GiveMeABreak
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Re: C5 X7 Manual gear problem
So 6 speed (ML6C) fitted on this model.
Possible symptoms:
There is a check you can do:
Possible symptoms:
- Impossible to engage gears
- Changing gear difficult
- The gear engaged is not one wanted
- No drive of the vehicle
- Clutch release difficult or impossible
- The clutch pedal remains on the floor(Permanently or intermittently)
- The clutch pedal is hard or soft
- The clutch pedal does not rise completely or does so in 2 stages
- Brake fluid leak (Clutch control)
- Oil leak from the gearbox
There is a check you can do:
- Engine stopped: Declutch and keep the clutch pedal pressed down during the operation
- Carry out one of the difficult gear engagements (whichever one you had the problem with - i.e. 4th to 5th)
- Stay declutched
- Move the gear lever to the neutral position
- Carry out the same gear engagement (whichever one you had the problem with - i.e. 4th to 5th)
Please Don't PM Me For Technical Help
Marc
Marc
- mypinknee
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Re: C5 X7 Manual gear problem
Yes - 6 speed. Thanks. I will try out your last suggestion.
I am sure it is well beyond me to fix, but as ever I appreciate your advice.
My only comment is it is not difficult to change gear in any way.
I am sure it is well beyond me to fix, but as ever I appreciate your advice.
My only comment is it is not difficult to change gear in any way.
My other car is a 2cv
- mypinknee
- (Donor 2021)
- Posts: 42
- Joined: 15 Apr 2019, 08:44
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- My Cars: C5 Exclusive Tourer
2cv
Xantia
BX 19 GTi
Dyanes x 4
2cv camionette - x 11
Re: C5 X7 Manual gear problem
Just tried the de-clutch test and there was no problem.
My other car is a 2cv
- GiveMeABreak
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- Joined: 15 Sep 2015, 19:38
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C3 1.6 HDi Exclusive Aluminium Grey (The Silver Hornet)
C5 MK II 2.0 HDi Exclusive Obsidian Black
C5 MK I 2.0 HDi SX Wicked Red
Xantia S2 2.0 HDi SX Hermes Red
C15 Romahome White
XM 2.0 Turbo Prestige Emerald Green Pearlescent
XM 2.0 Turbo Prestige Polar White
XM 2.0 SX Polar White
CX 20 Polar White
GS 1220 Geranium Red
CX 2.4 Prestige C-Matic Nevada Beige
GS 1000 Cedreat Yellow - x 5644
Re: C5 X7 Manual gear problem
Ok so if there is no problem with that test, then you are into the realms of checking the travel of the hydraulic clutch control slave cylinder, synchromesh and other tests involving the clutch and flywheel. So see how it goes and if you get persistent issues, keep a record of the issues (which gears are difficult to engage, any issues selecting reverse, does it jump out of gear, etc,) so you can provide as much detail to any garage / dealer if necessary.
Please Don't PM Me For Technical Help
Marc
Marc