75ZT Community

Hi all,

I hope somebody can shed a bit of light on my problem. Driving home last week the engine just cut out without any warning and wouldn't start up again. The morning after it started up as normal so I took it to my local Rover specialist where as I predicted it ran perfectly for him! He said the front fuel pump was making more of a noise than it should and it might be on the way out, so I told him to change it as it was last changed about four years ago. So pump changed, driving home it cuts out again and won't start. I couldn't here any of the fuel pumps when it was cranking but when I turned the ignition on for my final attempt to start it I could here both of them and lots of fuel sploshing around then it sprung back to life. Back to the garage I went where it totally behaved itself again! This time he checked the plenums to see if they were clogged but they were empty and he cleaned out the fuse box near the battery. A week passed and I thought he'd cured it but again out of the blue it just cut out again and was a pig to start back up. It's now back at the garage with the mechanics using it as a runabout in the hope that it breaks down on them so they can plug their diagnosis machine into it. Does anyone out there have any idea what the problem is?

Regards,
Steven

I believe the 'cam sensor' may be at fault, relatively easy to change.
Cheers

Cam sensor won't cause it to cut out, only to fail to start in the first place.

Relays can and do fail, so it might be worth checking the fuel pump relay. Clipped to the edge of the fusebox on early cars, probably in a similar place on later ones but the workshop manual doesn't say.

How much fuel in the tank did you have when this happened each time over or under a 1/4 and can you hear the fuel pump in the tank working put your hear by the filler and listen for the ticking.

How about the hgh presure fuel pump is that working as it should, try also changing the fuel filter all these must be checked please keep us informed of the progress Arctic.

Arctic wrote:How much fuel in the tank did you have when this happened each time over or under a 1/4 and can you hear the fuel pump in the tank working put your hear by the filler and listen for the ticking.

How about the hgh presure fuel pump is that working as it should, try also changing the fuel filter all these must be checked please keep us informed of the progress Arctic.

Each time it's cut out there's been a different amount of fuel in the tank from full to nearly empty. I picked the car back up from the garage on Friday after they'd had it for nearly a week. They've gone through everything and can't find anything wrong. It's ran perfectly for me too since I picked it up but I have to admit I've lost all confidence in it. The mechanic told me not to try and start it if it cuts out again just get it towed straight to him.Easy for him to say. In an ideal world it would cut out next to a layby but in reality it's always cut out in the worst places you can imagine so I've had to try to start it again.
This is the first time it's let me down in seven years so I suppose I mustn't grumble but if it cuts out again in rush hour traffic I'll probably go all Basil Faulty on it! I'll keep you posted as to how I get on with it. Fingers crossed with all the poking about it's had over the last few days it won't fail again.

If you want to look into the diagnostics side, you can get memory sticks that clip to the EOBDII socket and record live data from the car over a set period. The info can then be downloaded onto a diagnostic machine and read like you would do a car. It'll record what the car does when it cuts put. As its not a regular fault I wouldn't expect it to be stored on the car's ecu, as they often only record for ten journeys and it would have to happen on a more regular basis to be logged but access to the live data could tell you if there's a loss in pressure in the fuel rail or if there is a misfire etc. Might be worth looking into? Could be a bad connection on the injector rness? Wé had a similar problem with our Freelander Td4

Thank's for all the help. It's all sorted now.It turned out to be the in tank fuel pump, which is odd because the old one still seemed to be working and when I had the last one replaced about four years ago it gave completely different symtoms. And after a few fustrating weeks of going backwards and forwards to the garage and threatening to send it to the crusher it sails through its MOT!

Glad it's all fixed and back on the road, hope you have many more trouble free years of motoring.