I'm stuck!
Alan C
I'm stuck!
Alan C
Blocked exhaust? (probably from the internals of the catalytic converter collapsing).
Worth checking the Cam Cover Filter ......... when that gets congested you get these symptoms (often intermittent at first). When very badly congested you will get black smoke also. The normally clever little Land Rover computer diagnostic tool does _NOT_ pick this fault up (well they didn't very late 07). Strangely BMW recommend changing this unit on their BMWs quite regularly but for some reason it didn't get included in the L/Rover TD4 maintenance schedule until about '07 via an alert, not sure if it has been universally adopted though.
Richard
As it runs fine, infact better than it ever has, with the MAF disconnected, I'd presume the exhaust was fine? I know cats do collapse though.
Alan C
Changed that last week.
Alan C
Didn't see it mentioned in your post .......... just the MAF .... still there you go
Richard
This is the part I am on about ....... not the MAF
So far I have changed the MAF, cam cover PVC valve, fuel filter, 2 turbo hoses as they were very soft and squishy, air intate temperature sensor as it came with one of the hoses, and replaced any suspect looking vacuum hoses (which control amongst other things the boost control solenoid). All the engine sensors appear normal and within scope when checked on the diagnostics, no error codes and no MIL lamp, but still won't rev much past 2000 revs unless forced hard and there's no power there. What's confusing me is that with the MAF disconnected it goes fine (of course it then logs a fault and turns the MIL on), been advised that usually in this instance it's the MAF which is faulty, but I have 3 different MAFs now, all with the same fault, I doubt it. You know where you are with mechanical injection, but electronic? Pah, even the computer doesn't know :-(
Alan C
Hi Richard,
Yes, the cam cover PCV filter has been changed. Don't know why I keep calling it a valve!
Alan C
On or around Thu, 5 Feb 2009 11:56:14 -0800 (PST), snipped-for-privacy@bbc.co.uk enlightened us thusly:
wiring or connector issue on the MAF connection?
I had a similar problem and changed the MAF, PVC, and cleaned out the EGR. After the MAF was replaced the car idling was erratic and sometimes would switch off when cold starting. However after a few days of driving (approx. 10kms per day) it seems to be going a lot smoother with easy gear changes etc. the only problem I detect now is that when I depress the accelerator it doesn't respond immediately and only does so after a few nervous moments. Same story when going up hills, depress the accelerator and it is slow to kick down and gather speed. Not sure what the cause of this is and would appreciate some suggestions, it has a new oil and air filter for good measure.
Devan
replying to Devan , Devan N wrote: To the experts out there PLEASE help!
I posted a previous note about my Freelander TD4 2004 acceleration problem and hope you can shed some light before I subject myself to the agents and further enormous expense.
The TD4 starts first time every time and but when I press the accelerator it stutters and sometimes even cuts out completely. If I let it idle for a while (1 minute) then it doesn't switch off but it still feels hesitant and there is a ticking sound (like the old tappets). While driving and especially on an uphill, if I depress the accelerator completely I get no response whatsoever and the car will not go past 80km/h except if I put it into sport mode to encourage torque then it picks up again. If I need to stop at a traffic light I can feel the idle is rough.
the vehicle has been serviced recently and in addition I have replaced a number of items the MAF, PVC, and OIL and AIR filters. I am not sure if any of the hoses are gone or if the wiring needs to be replaced but I am frustrated to no end with a car that has been with us since new and I am hoping t keep it for a while more.
At the last service the injectors all showed within spec so I am stumped.
Any assistance will be appreciated!
Not saying it's the same problem, but this came up on Landy Zone on a '04 TD4 with a similar sounding problem. There were initially no fault codes showing on the ECU. :-
"Its an injector. I found number 2 wasnt doing anything when i pulled the connector off while it was missing, so i swapped number 2 with number 1 and the missfire followed it."
Now, if it had been an old 2 1/4 petrol engine like mine, I could have given you chapter and verse on misfiring.....
Hi m8 did u ever fix that freelander problem
I didnt know either when you said it
It must mean its secret and clandestine
mk5000
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You've replied to a ten year old post, lol
Stephen
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