EEkk! noise from engine bay

Tim · 19th July 2008, 05:45

Rover 75 Con Se CDTi Mk1

Help chaps. Have noise and vibration from engine bay between engine and battery. When the key is rotated to the last position before starter turns engine I get a noise which can only be described as a dry bearing sound, of something rotating but is out of balance. Other than the sound everything is working as it should. The noise is at different levels if you turn off and on again. First picked it up from the cabin. I'm guessing because I first picked it up from inside the car that it is fixed to the bulkhead which would suggest between engine and battery and passenger/centre consule area.

Any thoughts would be welcome, but first one is can I drive it around until fixed?

Cheers

Moonstone · 19th July 2008, 11:48

The fuel pumps start up to prime the system before ignition. They should stop after a while (30 sec?) The front lift pump is between battery and engine, behind the fuel filter. If you touch it while the noise is audible, it should confirm whether or not it's the source. If so, could be a symptom of failure - either of the in-tank pump or of both pumps.

GreyGhost · 19th July 2008, 12:00

Possible it is the whiney, grumbling sound from the vents? Mine has always done it from new.

Tim · 19th July 2008, 12:09

Quote:

Originally Posted by Moonstone

The fuel pumps start up to prime the system before ignition. They should stop after a while (30 sec?) The front lift pump is between battery and engine, behind the fuel filter. If you touch it while the noise is audible, it should confirm whether or not it's the source. If so, could be a symptom of failure - either of the in-tank pump or of both pumps.

Cheers dude, that looks like the baby. Shuts down like you say.

If it fails am I able to get the car started, need to know if I can wait a week as it is having an MOT then.

Cheers

Simon · 19th July 2008, 19:21

If you have two pumps (under bonnet and in-tank) then you may be lucky that the in tank pump may provide enough pressure to fuel the engine. If you've got a latter-designed single-pump then when it goes kaput then your scuppered I'm afraid

GerryT · 19th July 2008, 20:24

Quote:

Originally Posted by Grey Ghost

Possible it is the whiney, grumbling sound from the vents? Mine has always done it from new.

Mine does this , it dont seam to affect anything

Tim · 20th July 2008, 06:22

Quote:

Originally Posted by Simon

If you have two pumps (under bonnet and in-tank) then you may be lucky that the in tank pump may provide enough pressure to fuel the engine. If you've got a latter-designed single-pump then when it goes kaput then your scuppered I'm afraid

Its a mk1 so I'm assuming it has two as I can hear the rear one priming. Also going to drive around with the tank topped up. Funny sometimes turning it on the noise is less. Assuming bearings are knackered.

Thanks

Moonstone · 20th July 2008, 13:24

Quote:

Originally Posted by Tim

If it fails am I able to get the car started, need to know if I can wait a week as it is having an MOT then.

If the front lift-pump has actually stopped, preventing starting, then a tap on the side can sometimes spring it into life. Keeping the tank half-full may help if the in-tank pump has failed.

19th July 2008, 05:45	#1
Tim Feel the size of my Quads MG ZT 440SE, MG HS PHEV & MG3 Join Date: Nov 2006 Location: Addlestone Posts: 1,735 Thanks: 0 Thanked 128 Times in 85 Posts	EEkk! noise from engine bay Rover 75 Con Se CDTi Mk1 Help chaps. Have noise and vibration from engine bay between engine and battery. When the key is rotated to the last position before starter turns engine I get a noise which can only be described as a dry bearing sound, of something rotating but is out of balance. Other than the sound everything is working as it should. The noise is at different levels if you turn off and on again. First picked it up from the cabin. I'm guessing because I first picked it up from inside the car that it is fixed to the bulkhead which would suggest between engine and battery and passenger/centre consule area. Any thoughts would be welcome, but first one is can I drive it around until fixed? Cheers __________________ Member 23 or 63 depending on what you look at. https://www.two-sixties.co.uk/mgoc26...0rum/forum.php http://two-sixties-blog.com/ http://www.youtube.com/user/TheTwoSi.../1/1wPt2rhd_Ps Last edited by Tim; 19th July 2008 at 06:21..

19th July 2008, 11:48	#2
Moonstone Loves to post Rover 75 Tourer Join Date: Nov 2006 Location: Scotland Posts: 412 Thanks: 0 Thanked 1 Time in 1 Post	The fuel pumps start up to prime the system before ignition. They should stop after a while (30 sec?) The front lift pump is between battery and engine, behind the fuel filter. If you touch it while the noise is audible, it should confirm whether or not it's the source. If so, could be a symptom of failure - either of the in-tank pump or of both pumps.

19th July 2008, 12:00	#3
GreyGhost Banned 180+ Sport Auto Join Date: Oct 2006 Location: Bedford Middle Level Posts: 17,787 Thanks: 0 Thanked 18 Times in 5 Posts	Possible it is the whiney, grumbling sound from the vents? Mine has always done it from new.

19th July 2008, 19:21	#5
Simon Banned - Join Date: Nov 2006 Location: - Posts: 10,318 Thanks: 0 Thanked 4 Times in 3 Posts	If you have two pumps (under bonnet and in-tank) then you may be lucky that the in tank pump may provide enough pressure to fuel the engine. If you've got a latter-designed single-pump then when it goes kaput then your scuppered I'm afraid