|
||
|
6th November 2014, 00:29 | #1 |
Regular poster
75 v6(broken) , 02 75 2.0 cdt1 05 cdti,03 cdti Join Date: Nov 2012
Location: trim
Posts: 44
Thanks: 17
Thanked 4 Times in 4 Posts
|
noisy front fuel pump and iffy starting on diesel 75
The fuel pump beside the diesel filter on my 75 is making a humming noise and vibrating a lot .sometimes the car doesnt want to start . Is this a sign that the pump in the tank is giving up ? How do you know if its goosed ? Mrs is giving out about reliability on the car now lol.
|
6th November 2014, 01:51 | #2 |
I really should get out more.......
A Reasonably Priced Car Join Date: Jan 2014
Location: Burton Latimer
Posts: 2,530
Thanks: 408
Thanked 1,064 Times in 712 Posts
|
Noisey fuel pump
Sometimes they just make a bit more noise however if the engine is reluctant to start together with noises, its a sure thing your in for some spending. How much depends on a couple of facts, they are-
Is the in tank pump working? this is tested by opening up the fuel filler cap, putting the ignition onto position 2 and listening to the filler neck of the tank to detect a buzzing and or swirling noise, that assumes there is a good amount of fuel inside. If such noises are present, thats a good sign that the tank pump is functioning. If its not, you probably have two pump issues. The engine will run if only the under bonnet pump is functional assuming there is over a quarter of a tank of fuel, this is because the tank has 2 compartments (Divided in the centre by the floor tunnel) The in tank pump delivers fuel from the drivers side to the passenger side, and the under bonnet pump draws the fuel from a port on the passenger side. Thus less than quarter of a tank lets the fuel stay on the wrong side of the outlet port allowing air into the system. If the under bonnet pump loses pressure or fails, everything grinds to a hault, and then its game over! If the in tank pump failed some time ago this will contribute to the early retirement of the bonnet pump. Worst case is that both are tired both of mine got replaced with used working parts for around £60 and some time working in diesel, but new gets expensive. DMGRS shop is good and Mat knows his stuff. Sorry its long winded, but its easier for you to get a good description to best help you. Cheers John. |
6th November 2014, 06:05 | #3 | |
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: 11,550
Thanks: 3,470
Thanked 3,119 Times in 2,247 Posts
|
Quote:
If you look at a TD4 Freelander with the same engine it also has an ITP, but it has a flat bottom tank with no saddle. |
|
6th November 2014, 08:18 | #4 |
Regular poster
75 v6(broken) , 02 75 2.0 cdt1 05 cdti,03 cdti Join Date: Nov 2012
Location: trim
Posts: 44
Thanks: 17
Thanked 4 Times in 4 Posts
|
Great info lads . Thanks .
|
26th November 2014, 10:29 | #5 |
Regular poster
75 v6(broken) , 02 75 2.0 cdt1 05 cdti,03 cdti Join Date: Nov 2012
Location: trim
Posts: 44
Thanks: 17
Thanked 4 Times in 4 Posts
|
A mechanic who was doing the tracking said it sounded like the pump has air in it , can it be bled at the pump ? . It started acting up when I last had the filter off .
|
26th November 2014, 16:49 | #6 |
Discount MG Rover Spares
Rover 75 CDTi, 2x MG ZS180 Join Date: Jun 2011
Location: Hythe, Southampton
Posts: 11,320
Thanks: 456
Thanked 3,377 Times in 2,027 Posts
|
They're self bleeding - the circulation of fuel should push any air out of the system.
__________________
Your trusted MG Rover specialist! Tel: 02380 001133 / Email: [email protected] We now have a 'chat' function on our site for even quicker replies. Give it a try! Remember - discount code FORUM5 for 5% off |
26th November 2014, 19:57 | #7 |
Premium Trader
75 CDT Tourer,2.5 Launch Saloon, Omipro MG/Rover (T4) Join Date: Jul 2007
Location: Liversedge, West Yorkshire
Posts: 5,405
Thanks: 1,105
Thanked 1,340 Times in 661 Posts
|
It wouldn't be the first noisy pump I've heard that although still works doesn't intermittently provide enough fuel pressure to start.
If the in-tank pump is working and if not there's plenty of diesel in the car then suspect the under bonnet pump Of course there's other fuel related issues that can cause poor starting, injector leak-back, collapsed fuel filter, HP fuel regulator for example Russ
__________________
Replacement Key Service http://https://the75andztclub.co.uk/...d.php?t=244732 Full T4 Testbook diagnostics available. Diesel ECU repair and replacement. Options enabled or disabled as required. Diesel X-Power 135 and 160bhp, Rover 1.8T 150 to 160 MG 160 V6 to 177 upgrades available P.M. for details. |
26th November 2014, 20:38 | #8 |
Avid contributor
MG ZT CDTi Join Date: May 2013
Location: Exford
Posts: 173
Thanks: 49
Thanked 25 Times in 20 Posts
|
I had exactly the same issues with my diesel a few weeks ago, it was the in tank fuel pump failing. The under bonnet pump was running fine but was noisy, so I changed both. Front one is relatively easy to change, rear one is harder but I did it and am not a mechanic, takes some patience though, quality rear pump about £70, you only need the pump, not the whole assembly it fits into.... front pump about £30, but you can pay more! If you take out the rear pump, make sure you note where the assembly fits into the tank, I didn't and it was only with the help of the pics I got from the pump vendor that I worked it out!!!
|
26th November 2014, 20:40 | #9 | |
Premium Trader
Rover 75 Join Date: Nov 2010
Location: Devon
Posts: 33,772
Thanks: 8,837
Thanked 14,831 Times in 8,030 Posts
|
Quote:
__________________
Lest we forget..
|
|
26th November 2014, 20:51 | #10 |
I really should get out more.......
A Reasonably Priced Car Join Date: Jan 2014
Location: Burton Latimer
Posts: 2,530
Thanks: 408
Thanked 1,064 Times in 712 Posts
|
Iffy starting......
If this has happened shortly after fuel filter change, maybe worth checking if the seal is ok, the system will self bleed assuming the system integrity is good, if it can draw up air and fuel the engine will strugggle like a bitch.
|
|
|