The red one again. My son borrowed it this evening to go to Exeter, came back about 10 minutes later saying it was running rough. Power seems to be down on one cylinder although it seem to drive reasonably well. Another strange thing is that it idles at a bit over 2000 rpm, if you put your foot on the brake idle returns to normal, take it off run's fast again.
Any ideas?
Peter
More C5 X7 woes - uneven running this time.
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Re: More C5 X7 woes - uneven running this time.
Vacuum leak?
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Re: More C5 X7 woes - uneven running this time.
Possibly but its intermittent. sometimes it corrects itself. I'm going to take it out and give it a good thrash today and see if that clears it. Its definitely down on one cylinder you can hear it in the exhaust.
Peter
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Re: More C5 X7 woes - uneven running this time.
So, 0-50MPH in 6.5 (minutes) and up to 65MPH then?
James
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Re: More C5 X7 woes - uneven running this time.
I saw a GS in a scrapyard with a sign in the rear window - "0 to 60 in Fifteen Minutes".
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Re: More C5 X7 woes - uneven running this time.
Sorry Peter i just could not resist.
However have you had any luck in sorting this out.
Cannot do anything during the week but am happy to try and sort something out over the weekend if you need a Lexia session to try and get some live data etc.
Colin
However have you had any luck in sorting this out.
Cannot do anything during the week but am happy to try and sort something out over the weekend if you need a Lexia session to try and get some live data etc.
Colin
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Re: More C5 X7 woes - uneven running this time.
Hi Colin
Well - I took it out this afternoon and did about 15 miles in it, never missed a beat. My son did say he had difficulty starting it and it tried to die on him going up hill so I can only conclude that it was an electronic problem, although how that can cause it to miss on one cylinder I don't know. I don't understand digital electronics, I grew up with analogue and valves.
The engine light even went out after I had stopped and started it a couple of time, I went out again briefly this afternoon and it still ran perfectly. I know that if the battery voltage drops to low it does strange things to the ECU, that was why my wipers were intermittent, but they have worked perfectly since I fitted a new battery.
I might take you up on your kind offer for the other one as I have to replenish the DPF fluid and will need the light putting out.
I am going to fit an inline fuel pump when it arrives as I'm sure the starting and dying problem is fuel related so will see how that goes.
Peter
Well - I took it out this afternoon and did about 15 miles in it, never missed a beat. My son did say he had difficulty starting it and it tried to die on him going up hill so I can only conclude that it was an electronic problem, although how that can cause it to miss on one cylinder I don't know. I don't understand digital electronics, I grew up with analogue and valves.
The engine light even went out after I had stopped and started it a couple of time, I went out again briefly this afternoon and it still ran perfectly. I know that if the battery voltage drops to low it does strange things to the ECU, that was why my wipers were intermittent, but they have worked perfectly since I fitted a new battery.
I might take you up on your kind offer for the other one as I have to replenish the DPF fluid and will need the light putting out.
I am going to fit an inline fuel pump when it arrives as I'm sure the starting and dying problem is fuel related so will see how that goes.
Peter
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Re: More C5 X7 woes - uneven running this time.
Peter that is no problem when ever you are ready.
I should be off work from Good Friday till the Monday after Easter Monday so if that fits in with you i am sure i will be about, do not think i am going away in the current climate
Colin
I should be off work from Good Friday till the Monday after Easter Monday so if that fits in with you i am sure i will be about, do not think i am going away in the current climate
Colin
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Re: More C5 X7 woes - uneven running this time.
Thanks Colin. I haven't put the fluid in yet so it may be a week or two.
Peter
Peter