The car just doesn't start
May 6, 2012 at 10:49 AM
I have a bmw 525I it won't start i have replaced relay to fuel pump but still nothing. any other suggestions
HERNANDEZ7769
- MEMBER
- 4 POSTS
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how do you know it is the fuel pump system?? did you have it diaged or is it a guess
Roy
Roy
May 6, 2012 at 10:56 AM
Have a helper get underneath and listen to the fuel pump while you turn key on-is it humming? If so -check the fuel pressure and injector pulses
May 6, 2012 at 11:00 AM
I have checked the fuel pump and it has the proper amount of pressure. could it be the main relay or something electrical
May 6, 2012 at 11:09 AM
Are the injectors opening and closing? If so -look for ignition spark
May 6, 2012 at 11:22 AM
check for compression first. you need to start at basics. then go to speark, check for spark at the plugs.
Roy
Roy
May 6, 2012 at 11:23 AM
The engine is not getting any fuel
May 6, 2012 at 11:24 AM
You said the fuel pressure is good-again are the injectors pulsing meaning being snchronized by the computer providing fuel into the cylinders
May 6, 2012 at 11:29 AM
We had pressure in the fuel pump yesterday and now it isn't registering anything.
May 6, 2012 at 11:44 AM
Check/Test fuse no.18 15amp, fuel pump relay and fuel pump relay control circuit of the computer
May 6, 2012 at 11:49 AM
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