MGZT CDTI 2003 starting issues

Sue4960 · 24th July 2015, 20:50

My car is A MGZT CDTI 2003 it just cuts out , we have changed the in tank fuel pump , also the up lifter pump . Plus we have had the fuel injectors checked and one had to be repaired, also change the crankshaft sensor and cam shaft sensor. And we have changed the fuel relay . It started and run for a while but then a hour later it wouldn't start . Anyone had a problem like this ?

Mike Noc · 24th July 2015, 21:42

Have you checked that the plenum drains are clear and that the ECM hasn't gone for a swim?

When it fails to start are the LP fuel pumps running or not, and is the oil pressure light on?

Sue4960 · 25th July 2015, 09:25

Yes the plenum drains are dry and all clear of water. The pumps are working at the start but then stop. Yes goes off when engine turns over

Sue4960 · 25th July 2015, 09:29

Also not showing any fault on code reader ? It's driving us mad

Vossy · 25th July 2015, 11:00

Maybe a broken wire somewhere along the loom, might have rubbed through or corroded, if everything else has been sorted it is sounding like a troublesome wire.
Maybe one of the experts will have more of an insight to this.

Sue4960 · 25th July 2015, 16:41

With doing everything possible ie , changing fuel pump (intank) plus uplifter pump. changed crankshaft, camshaft, fuel relay , had injectors tested one of them repaired . and a bill of about £900.00 the car still having problems , when the ignition is tuned on sometimes the pumps work sometimes they don't . checked new fuel filter that's all clean . Also checked fuel pipes etc . and checked the switch above the relay fuse box. Please can anyone help ,

Vossy · 25th July 2015, 17:25

Quote:

Originally Posted by Sue4960

when the ignition is tuned on sometimes the pumps work sometimes they don't .

Simple electrical fault is what I would go with, although they can be notoriously difficult to trace.

Good luck.

Mike Noc · 25th July 2015, 19:22

Quote:

Originally Posted by Sue4960

With doing everything possible ie , changing fuel pump (intank) plus uplifter pump. changed crankshaft, camshaft, fuel relay , had injectors tested one of them repaired . and a bill of about £900.00 the car still having problems , when the ignition is tuned on sometimes the pumps work sometimes they don't . checked new fuel filter that's all clean . Also checked fuel pipes etc . and checked the switch above the relay fuse box. Please can anyone help ,

When the pumps don't work with the ignition is turned on does the oil light come on?

Sue4960 · 26th July 2015, 10:13

yes the oil light comes on as normal

Sue4960 · 26th July 2015, 10:14

But my husband just going to double check that

24th July 2015, 20:50	#1
Sue4960 Newbie MGZT Join Date: Jul 2015 Location: St Ives Posts: 11 Thanks: 0 Thanked 0 Times in 0 Posts	MGZT CDTI 2003 starting issues My car is A MGZT CDTI 2003 it just cuts out , we have changed the in tank fuel pump , also the up lifter pump . Plus we have had the fuel injectors checked and one had to be repaired, also change the crankshaft sensor and cam shaft sensor. And we have changed the fuel relay . It started and run for a while but then a hour later it wouldn't start . Anyone had a problem like this ?

25th July 2015, 16:41	#6
Sue4960 Newbie MGZT Join Date: Jul 2015 Location: St Ives Posts: 11 Thanks: 0 Thanked 0 Times in 0 Posts	Starts then stops With doing everything possible ie , changing fuel pump (intank) plus uplifter pump. changed crankshaft, camshaft, fuel relay , had injectors tested one of them repaired . and a bill of about £900.00 the car still having problems , when the ignition is tuned on sometimes the pumps work sometimes they don't . checked new fuel filter that's all clean . Also checked fuel pipes etc . and checked the switch above the relay fuse box. Please can anyone help ,

24th July 2015, 21:42	#2
Mike Noc This is my second home Rover 75 CDT Manual Connoisseur SE, Rover 75 CDT Automatic Connoisseur SE & a Freelander Td4. Join Date: Jul 2009 Location: Hampshire Posts: 11,548 Thanks: 3,470 Thanked 3,119 Times in 2,247 Posts	Have you checked that the plenum drains are clear and that the ECM hasn't gone for a swim? When it fails to start are the LP fuel pumps running or not, and is the oil pressure light on?

25th July 2015, 09:25	#3
Sue4960 Newbie MGZT Join Date: Jul 2015 Location: St Ives Posts: 11 Thanks: 0 Thanked 0 Times in 0 Posts	Yes the plenum drains are dry and all clear of water. The pumps are working at the start but then stop. Yes goes off when engine turns over

25th July 2015, 09:29	#4
Sue4960 Newbie MGZT Join Date: Jul 2015 Location: St Ives Posts: 11 Thanks: 0 Thanked 0 Times in 0 Posts	Also not showing any fault on code reader ? It's driving us mad

25th July 2015, 11:00	#5
Vossy Why? ... MG ZT+ Cdti Auto saloon. Join Date: Jul 2014 Location: Blockeswich, South Staffs Posts: 1,549 Thanks: 173 Thanked 483 Times in 330 Posts	Maybe a broken wire somewhere along the loom, might have rubbed through or corroded, if everything else has been sorted it is sounding like a troublesome wire. Maybe one of the experts will have more of an insight to this.

26th July 2015, 10:13	#9
Sue4960 Newbie MGZT Join Date: Jul 2015 Location: St Ives Posts: 11 Thanks: 0 Thanked 0 Times in 0 Posts	yes the oil light comes on as normal

26th July 2015, 10:14	#10
Sue4960 Newbie MGZT Join Date: Jul 2015 Location: St Ives Posts: 11 Thanks: 0 Thanked 0 Times in 0 Posts	But my husband just going to double check that