2005 Ford Focus fuel pump

Tiny
JOHNTC
  • MEMBER
  • 2005 FORD FOCUS
  • 4 CYL
  • 2WD
  • MANUAL
  • 50,000 MILES
Sometimes my car will not start I cannot hear the fuel pump hum as usual on first turn of the key this will persist until I have left it to stand for an hour or soand somtimes overnight, it doesnt do it every time it can go weeks without it happening then it will do it again just the once and its ok again.I've had a code reader on it and there is no fault codes stored the engine turns over ok but no fuel gets thru. After its been left a while I can hear the pump and it starts. As a replacement pump is expensive I was wondering if it's a relay or sender module fault
Do you
have the same problem?
Yes
No
Monday, October 4th, 2010 AT 9:19 PM

4 Replies

Tiny
RASMATAZ
  • MEMBER
Next time it refuses to start don't wait for it to make up its mind-do below immediately to determine if its fuel or spark problem

Get a helper disconnect a sparkplug wire or 2 and ground it to the engine atleast 3/16 away from ground-have helper crank engine over-do you have a snapping blue spark? If so-you have a fuel related problem, check the fuel pressure to rule out the fuel filter/fuel pump/pressure regulator and listen to the injector/s are they pulsing or hook up a noid light. No snapping blue spark continue to troubleshoot the ignition system-power input to the coil/coil packs, coil's resistances, cap and rotor, distributor pick-up coil, ignition control module, cam and crank sensors and computer Note: If it doesn't apply disregard it and keep testing
Was this
answer
helpful?
Yes
No
Tuesday, October 5th, 2010 AT 9:35 AM
Tiny
JOHNTC
  • MEMBER
I have a Spark so the plugs coils etc are ok. Theres no fuel at the fuel rail I has to be a pump related problem but because it it intermittant its proving difficult to solve as it can work ok for several weeks before doing again and it dosent matter what the outside temp is or how much fuel is in the tank. The car perfectly ok during the times in between the fault and is ok immediately after?
Was this
answer
helpful?
Yes
No
Tuesday, October 5th, 2010 AT 11:53 AM
Tiny
RASMATAZ
  • MEMBER
Check the fuel pressure to rule out the fuel pump
Was this
answer
helpful?
Yes
No
Tuesday, October 5th, 2010 AT 11:55 AM
Tiny
PUFFNSTUFF
  • MEMBER
Could be wiring problems going to the sending unit
Was this
answer
helpful?
Yes
No
Thursday, October 7th, 2010 AT 7:25 AM

Please login or register to post a reply.

Recommended Guides