Dave !
Have you had the fuel pressure sensor out ?
Check the connections on the plug first for crap connections,If it looks ok whip the sensor out and give it a good clean "CAREFULLY" and dunt get any crap in't ole !
But i still think it sounds like a rear fuel pump fault ?
How much fuel you got in yer tank when this happens ?
If yer under 1/4 full, try fillin it up and take it out on a simmilar run to where the fault origionally happens !
Looking at mondo photo, I'm sure the little lever on my connector is towards the back of the engine where mondo's is towards the front. I'll double check in the morning, but I would of thought that sensors would be poke-yoked so they only go on the right way.
Is it possible to connect this the wrong way?
Thanks
Dave
At least i'm not alone. I have the same dam problem.
I was convinced it was a fuel related problem too but now talk of turbos falling apart has me worried.
My TD4 seems to cut out on hills. Only big hills and only when im going 60+mph or towing. Basicly the throttle has to me flat to the floor for her to go. I'm assuming this is what others are finding:
When it dies if you release the throttle and re apply straight away there is nothing, nothing aty all, no addidional drag, no noise change its as if nothing is there at all. very occasionally the will maintain speed but not pull anymore.
The power doesnt come back at the same RPM either. I usually just keep my foot burried and she comes back after say 5-10 seconds, by this point i have usually dropped a cog as the hills are steep and long around these parts. It doesnt come back any quicker if i leave off the gas either, and when she does come back its gradule, 2-3 seconds.
I thought it was getting starved of fuel, so i changed the rear fuel filter (thats a job in its self) but no change. I didnt realise there was a secondry in the engine bay, i might try changing that one tomorrow.
I do have problems with the tini sponge breather filter on the top of the block, kinda to the rear of the injectors. I assume its an oil breather. This seems to block itsself every 5 months or so. This caused it to misfire when its gunned, but that usually kicks out smoke, and there is a noticible pressure build up, or release should i say as you open the oil filler cap when the engines running. But its not doing any of the above at the moment so i dont thinks its that.
so are we all going with the rear fuel pump? or do i have to fork out for a new injector pump or turbo?
oh, and as mentioned by another user, the fuel tank level isnt a factor of when it happens.
Sorry this is a long post, i just thought i'd put my cards on the table..
dan
wot year un model is it. . . . .hey ming. mines the later td4 so its just a canisder pump ontop os the inline fuel filter. its not really hard graft but just a pain in the arse. there new one on ebay for £140.
dan
wot year un model is it. . . . .
I have just joined this forum to let you know I have experienced the same problem with my 2002 TD4, on hitting 70 mph engine speed would cut down to 60mph and then build up to 70 mph but would not go beyond that speed.Hi All,
I'm hoping that somebody can shed some light on this.
When I go up hill at about 70MPH the turbo on my TD4 feels like it is cutting out. If I slow down so 60 (ish) MPH it comes back on.
But when I'm ragging around the lanes on Exmoor I don't have any problems (Max speed 50 - 60 MPH).
I have tried driving with the MAF disconnected, the egr valve disconnected and I have changed the air, fuel, oil and crank breather filters. Non of it made a difference.
When it cuts out I'm not getting black smoke out the back.
Thanks,
Dave
Shepherd's delight?
I deny it!
I didn't lay a hand on that gorgeous sheep .... oooops !
I'm told by a Welshman I used to work with, that sheep give better back pressure at the edge of the cliff.
Don't see what sheep have to do with exhausts though.
I have just joined this forum to let you know I have experienced the same problem with my 2002 TD4, on hitting 70 mph engine speed would cut down to 60mph and then build up to 70 mph but would not go beyond that speed.
My car was repaired under warranty after 6 weeks in the garage and not knowing the cause of this problem. The mechanics spent alot of time and money replacing parts on the fuel system, pumps,filters,switches, all manner of electrical parts with no luck. Then they replaced the Turbo and bingo problem solved.
Apparently there are variable vanes inside the Turbo which close at around 70 mph to stop it over boosting and pressurising the crankshaft case, and if it does, a safety sensor tells the computer which in turn lowers the pressure from the pump in the fuel tank and the engine slows to a safer speed.
These variable vanes must have been sticking open and I'm told the whole turbo needs replacing if this happens.
I hope this helps.