CLK fuel pumps

[kimliz]

Hi, I'm Kim.

I bought a CLk soft top 320 to renovate. it was a non runner. I traced the problem to the fuel pump. I put a new pump and filter on and it started. I drove it 2 yards on my drive and left it for a couple of weeks. It wouldn't start and I traced the fault to the brand new fuel pump that had started the car twice and driven 2 yards, it was not a fuse or relay,. The item was replaced, I fitted it and the car started. I drove it back and for on the drive again and parked it up. 2 weeks later it is again a non starter and again it is the fuel pump. not a relay, not a fuse not any wiring the pump itself as proved by wiring it directly to the battery. Has anyone any idea what could be causing this?

 

[mioba]

what brand is the replacement fuel
pump.

 

[kimliz]

El cheapo! even so it works at first. I stripped down the first replacement but couldn't see a fault. Today I re-assembled it and it worked so it seems that the pump doesn't like getting wet, ( the fuel runs through it).

 

[mattkh]

Has anyone any idea what could be causing this?

Just check that the pump is sending the fuel in the right direction.
Also, does the fuel filter have a directional arrow..?? Is it facing the right way..?

 

[kimliz]

Thanks for your suggestions but the fuel pump worked once it isn't now, everything else is good. I do have over 30 years experience in the garage trade, just never come across this fault before. I did read a post somewhere that someone in the USA had the same fault with a Chrysler, 3 new fuel pumps until it worked, strange eh?