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15th March 2020, 15:40 | #1 |
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rover 75 Join Date: Feb 2020
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2003 rover 75 1800 petrol non start fuel problem
Hi all, car wont start, cranking over fine, no sound from fuel pump with ignition on. After reading several posts. I have swapped relay r3 and checked fuse 28 all good. I have no power at the purple and white wire that feeds the pump. If i were to remove the relay and put 12v power to the purple and white that feeds the pump the car should start (yes ?). My question is if this works which wire to the relay should have ignition feed so that i can run a new feed to that
Thanks for any advice in advance |
15th March 2020, 17:11 | #2 |
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Rover75 and Mreg Corsa. Join Date: Nov 2006
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Does the pump not run while cranking on the starter? You need an assistant to listen down the tank filler while you turn the engine over. If the engine doesn't start, the pump is turned off. Have you got the FOC (Fabled Orange Clip) on the fuel filter?
TC |
15th March 2020, 17:46 | #3 |
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monday
I will listen for pump whilst cranking tomorrow and check for foc .Surely pump should prime with ignition switched on.,and would it not have power to it anyway ?.Just trying to understand it
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15th March 2020, 17:58 | #4 | |
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Quote:
Will run for anything up to a minute before turning itself off. |
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15th March 2020, 18:11 | #5 | |
I really should get out more.......
Rover 75 Saloon Join Date: Jul 2011
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Quote:
I understand that if the crankshaft sensor is defective then the fuel relay will not energise - is yours working, any fault codes, observe while cranking if the rev needle moves. Regards |
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15th March 2020, 20:48 | #6 | |
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fault codes
Quote:
Thanks |
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16th March 2020, 18:55 | #7 | |
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update
Quote:
thanks for your help |
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16th March 2020, 19:05 | #8 | |
I really should get out more.......
Rover 75 Saloon Join Date: Jul 2011
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Quote:
OK you put power directly to the pump and didn't hear anything but did you ensure the black cable or pin was earthed? And you lifted the rear seat and removed the normal plug on the fuel filter to do this? Sorry I've no idea where to find the crank sensor on a 1.8 (only have V6s), use the search bar. But as the needle does move I would think the sensor is fine. Regards |
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16th March 2020, 19:18 | #9 | |
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Quote:
Last edited by morgymoo; 16th March 2020 at 19:34.. |
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16th March 2020, 19:38 | #10 |
I really should get out more.......
Rover 75 Saloon Join Date: Jul 2011
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Very strange, I've used this routine on my own cars and it works. While normally reliable it wouldn't be the first case of pump failure.
Regards |
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