Fuel pump

MikeyH

MikeyH

Elite
 Devon
Hello people, How easy is it to replace the fuel pump on an E85 2.2i. I'm assuming that it's broken as when I turn on the ignition it makes a load droning noise for a few seconds and them carries on when I start the engine. :( Pelican Parts gives it a 5 star difficulty rating and looking at the "how to do" I think it's beyond me. Just hoping it looks worse than it is. Thank you, Mike.
 
Thank you all for your advice but having slept on this I am worried that using Redex will just cover up a problem that will come back later to bite me big time, stuck out somewhere in the dark without a phone signal. With the car moving closer to 90,000 miles and 22 years old and the pump making a sound like its struggling (to me) I have decided to let the mechanic have a look on Tuesday, more for my peace of mind. Mike.
 
So an update, mechanic came today, turned the ignition on and the noise was still there and stopped a few seconds later as before. He started the engine and there was one hell of a racket and a smell from the exhaust, this he says is a misfire. I have not had this before, it is the smoothest engine I have ever had in a car. Checks it on his pad thing and asks me if it has ever overheated, no I say, he deletes the fault code? Then he says that number 4 has a misfire, swaps over the coil packs, still on 4. He does a smoke test and this is okay. Plugs okay. By the the time the engine has run for half an hour the misfire has gone. So off he goes, unable to find what is wrong with the fuel pump noise or the misfire I never used to have. But he did agree with others on here that Redex might be worth a try. It hasn't been used since 7th June, over a week ago, it's driven almost everyday since I bought the car so perhaps sitting around for 9 days could be the problem causing the misfire? Anyway buying Redex tomorrow. He did say that it was the nicest z4 he had seen. Probably trying to cheer me up, it didn't. Mike.:(
 
Back in 2022 there is a thread with a similar misfire and it seemed to be down to a spark plug gasket leaking a little bit and when the engine was left standing for a while this would cause a misfire until the oil burned off. I don’t know how to put this up on here but it seemed to be enuff_zed that discovered it.
 
So, car being used daily again now, no misfire and Redex seems to have stopped the fuel pump being noisy. All’s well now. Thank you for the heads up re using Redex @ Rockhopper. Mike :thumbsup:
 
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