THIS 70mph THING .

This site contains affiliate links for which LandyZone may be compensated if you make a purchase.
R

rogejeffr

New Member
Posts
9
Hi everyone i am new to this forum but have been on others and the one thing the freelander forums all have in common is the 70mph speed cut off . Now i have had this problem for sometime, taken on board everything everybody as told me changed some valves/sensors etc fuel pumps spent a fortune.LR tell me its ok, all checked out but fitted a turbo boost valve just in case its that another £120.00 bet you know what i am going to say next yes its no @@@@@@@@@ differant.So today i am at home and started to have a look at the vacuum pipes etc . I was pretty good with cars 30yrs ago but i am lost with today Hi tec engines anyway while under the bonnet i was looking at the EGR and removed the pipes cleaned all the crap from the EGR and noticed some of the oily crap had been seeping out of one side of the pipes could this be where some air is getting in and giving me this trouble ? I cleaned everything up and refitted the pipes , had a run out up the road and the car seems to fly but it alway did until it was hot then try going over 70mph.Can anyone give me some info on the EGR what it does or would the air seepage on this have a bearing on this problem:confused: thanks jeff
 
Hi. I had same problem with my td4 when i first got it, cleaned the air flow sensor and it sorted the problem, you can get the air flow cleaner off the net or use an electrical conntact cleaner, I would also try new turbo pipes if not alreadey done so and blank the erg valve off, easey job and makes a big difference to the power.
 
cerenko said:
Hi. I had same problem with my td4 when i first got it, cleaned the air flow sensor and it sorted the problem, you can get the air flow cleaner off the net or use an electrical conntact cleaner, I would also try new turbo pipes if not alreadey done so and blank the erg valve off, easey job and makes a big difference to the power.
Click to expand...
thanks for that, will clean that today
 
Landrover have issued a service bulletin about a corrosion problem with the plug for the fuel pressure regulator on the td4 that causes a misfire or loss of power especially under load as the cpu gets a false voltage signal which in turn shuts the fuel delivery down hence loss of power, you get no fault codes as the cpu thinks all is working ok. There is a modified plug and wiring for the fuel pressure regulator. The landrover part No is YMQ503320 and It’s a easy fit.
 
booboodag said:
Landrover have issued a service bulletin about a corrosion problem with the plug for the fuel pressure regulator on the td4 that causes a misfire or loss of power especially under load as the cpu gets a false voltage signal which in turn shuts the fuel delivery down hence loss of power, you get no fault codes as the cpu thinks all is working ok. There is a modified plug and wiring for the fuel pressure regulator. The landrover part No is YMQ503320 and It’s a easy fit.
Click to expand...
this sounds interesting.will look into it , about time LR found a solution to this problem everyone seems to have this fault but no one can say why or how its fixed and that includes LR .nice one thanks. jeff
 
Radnorman said:
Two different entities! Your first 'LR' is he manufacturer, the second is the individual dealer ( and possibly individual member of staff ) you have talked to!
Click to expand...
well after trying just about everything else its got to be worth a go,sounds right for the problem BUT so did so many of the others that have been good enough to try to help.
 
Don’t know the history of what you have changed, the other sensor that could cause the problem is the MAP sensor, which LR call multi pressure manifold sensor (which normally gives a fault code). The turbo boost valve that you have had fit if normally reliable. One way to check the MAP is remove from the inlet manifold clean it with a contact cleaner and refit and see what the difference is as we have also had a few td4 with that fault as well
 
booboodag said:
Don’t know the history of what you have changed, the other sensor that could cause the problem is the MAP sensor, which LR call multi pressure manifold sensor (which normally gives a fault code). The turbo boost valve that you have had fit if normally reliable. One way to check the MAP is remove from the inlet manifold clean it with a contact cleaner and refit and see what the difference is as we have also had a few td4 with that fault as well
Click to expand...
Ok will look at that to . what gets me in these days you would think the computer would pick these faults up . to replace them all i would not be able to buy beer for a year anyway thanks for that will let you know how i get on,jeff
 
rogejeffr said:
what gets me in these days you would think the computer would pick these faults up .......... to replace them all
Click to expand...
There is still the need for human intervention, where there are no fault codes, and where they do exist, on a suitably equipped scanner then one looks at live data to find irregularities. To keep 'throwing' parts at it is 'so 1970's '. What I have just 'said' is pointless, when, the answer is updated engine management software, though most unlikely in this case.
 
You must log in or register to reply here.

Similar threads

S
Freelander 2 Rough Idle and Cutting out After EGR replacement
Replies
3
Views
510
stevelincs
S
Philgt50
High pressure fuel rail connection
Replies
5
Views
364
andyfreelandy
andyfreelandy
A
Freelander 2 steering pipes / push fit or need a tool?
Replies
3
Views
463
Adam Fiander
A
B
Freelander 2 noise following exhaust manifold removal.
Replies
3
Views
530
Nodge68
Nodge68
P
Freelander 2 (LR2) Hiccups on Idle and Exhaust Fumes
Replies
1
Views
504
Nodge68
Nodge68
Back
Top