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BMW
745
Engine
Symptoms
Not Running
Engine will not start
2003 BMW 745
10,100 MILES • 4.4L • V8 • RWD • AUTOMATIC
GLENN1980
MEMBER
12 POSTS
No power at the fuel pump and no spark at the spark plug. crank but no start. fuel pump works. can hear it run.
Jan 16, 2015 at 4:58 AM
CADIEMAN
✓
Experienced Mechanic
3,544 POSTS
Hello,
This sounds like the crankshaft angle sensor is not working here is a guide that will walk you through the steps and the location for your car below.
https://www.2carpros.com/articles/crankshaft-angle-sensor-replacement
and this guide can helps as well.
https://www.2carpros.com/articles/car-cranks-but-wont-start
The sensor is in the side of the block near the oil pan. Check out the diagrams (Below). Please let us know what happens.
Cheers
Image (Click to enlarge)
Feb 19, 2021 at 5:47 AM
GLENN1980
MEMBER
12 POSTS
Ok...fuel pump has no power
Feb 19, 2021 at 5:47 AM
CATAFINA
✓
Experienced Mechanic
167 POSTS
The fuel pump will have no power if the crankshaft sensor is bad.
Feb 19, 2021 at 5:47 AM
GLENN1980
MEMBER
12 POSTS
If I run a wire to the fuel pump will it run?
Feb 19, 2021 at 5:47 AM
CADIEMAN
✓
Experienced Mechanic
3,544 POSTS
I don't think so are you getting a new sensor?
Feb 19, 2021 at 5:47 AM
GLENN1980
MEMBER
12 POSTS
I have one on order should be here next week.
Feb 19, 2021 at 5:47 AM
CADIEMAN
✓
Experienced Mechanic
3,544 POSTS
Okay let us know.
Feb 19, 2021 at 5:47 AM
GLENN1980
MEMBER
12 POSTS
Got the sensor today you hit it on the money the engine started right up and runs great! I love this site.
Feb 19, 2021 at 5:47 AM
CADIEMAN
✓
Experienced Mechanic
3,544 POSTS
Glad you could get it fixed, that kind of problem can be tough. Please use 2CarPros anytime we are here to help
Cheers
Feb 19, 2021 at 5:47 AM
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Engine won't start
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