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  #1  
Old 04-13-2014, 08:34 PM
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Join Date: Jan 2012
Location: Virginia
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cascios is on a distinguished road
2001 X5 3.0 will not start, tried everything

So I get in the E53 one morning and it will not start.
The Engine cranks but it will not fire. Here are the things I have done tor try and troubleshoot.

I checked for spark. I am getting a spark. It's orange, this normal? Should it be blue?

Checked fuel pressure at the rail 47 psi That's within spec.

Used a long screwdriver as a stethoscope to check for fuel injector pulse. I definitely hear the number one injector ticking while the engine is cranked.

I brought the 7 year old battery in to have it checked at advanced auto. State of health is very good according to the EXP 1200 battery tester they have there. Its putting out 12.51 volts and 620 CCA under load. It is rated at 650CA. The counter guy said he could not in good conscience sell me a new battery as this one is perfectly fine.

I disconnected the airbox and sprayed started fluid in the intake. It still would not hit.

So to recap.
I have spark
I have injector pulse
I have fuel pressure
battery tests OK

What am I missing here?

Any help is greatly appreciated.
Thanks
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  #2  
Old 04-13-2014, 08:39 PM
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Oh yeah. I also replaced the crankshaft sensor. What a treat that was. Man is that thing hard to get to. Still no start.
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  #3  
Old 04-13-2014, 08:57 PM
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g300d is on a distinguished road
Try unpluging MAF and start.
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  #4  
Old 04-13-2014, 09:21 PM
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RFaber is on a distinguished road
Any codes?? whats your compression at?
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2003 X5 3.0i (02/2003) sport package, Sapphire black metallic / Black Dakota Sport seats. compass mirror retrofit, trailer hitch retrofit, Prodigy P2 trailer brake controller installed, PDC retrofit, Lumbar support retrofit. heated rear seats retrofitted. Running boards retrofitted and subwoofer install in progress. 4.8is Brakes installed front and back. Bluetooth TCU installed, Rear Fog lights installed. Retrofitted reclining rear seat backs.
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  #5  
Old 04-13-2014, 09:43 PM
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Quote:
Originally Posted by g300d View Post
Try unpluging MAF and start.
I tried unplugging the MAF. No change.
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  #6  
Old 04-13-2014, 09:45 PM
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No codes. I haven't done a comp test yet
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  #7  
Old 04-14-2014, 05:55 AM
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Hmm. No codes, there is fuel, there is spark, injectors are working... Weird.

How was it running prior to this?
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  #8  
Old 04-14-2014, 07:52 AM
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Engine does not rotate at start

Battery is not well connected or corroded or faulty.
The starting circuit be disconnected or loose.
Starter motor failed.
Engine ground strap is disconnected or broken.


Engine hard to start when cold

Battery is not well connected or corroded or faulty.
Air filter could be dirty or clogged.
Spark plug failed.
Fuel injection or Ignition system failure.


Engine stalls

Fuel filter plugged.
Fuel tank vent and pipes may be blocked or restricted.
Spark plug failed.
Fuel injection failure.
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Build Date: 06/2004

2004 E53 3.0L 6 Cyl
Engine Code: M54
AT: 5L40-E/GM5 (A5S 390R)
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2004 E46 M3 Coupe 3.2L 6 Cyl
Engine Code: S54
MT: S6S 420G - 6 speed
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2009 E90N 328xi Sedan 6 Cyl
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  #9  
Old 04-14-2014, 09:02 AM
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just out of curiosity but have you pulled all your fuses under the dash and in the back quarter panel area and checked them?

I didnt realize until this weekend that there's a seperate fuse for the front driver side window and the front passenger side window.

there might be multiple fuses for the ecu. might be one that controls the ignition circuit and one that controls the logic circuit. just saying its worth it to look.
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  #10  
Old 04-14-2014, 10:40 AM
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Where did you check the fuel pressure? A wild guess: fuel filter, injector.


Quote:
Originally Posted by cascios View Post
So I get in the E53 one morning and it will not start.
The Engine cranks but it will not fire. Here are the things I have done tor try and troubleshoot.

I checked for spark. I am getting a spark. It's orange, this normal? Should it be blue?

Checked fuel pressure at the rail 47 psi That's within spec.

Used a long screwdriver as a stethoscope to check for fuel injector pulse. I definitely hear the number one injector ticking while the engine is cranked.

I brought the 7 year old battery in to have it checked at advanced auto. State of health is very good according to the EXP 1200 battery tester they have there. Its putting out 12.51 volts and 620 CCA under load. It is rated at 650CA. The counter guy said he could not in good conscience sell me a new battery as this one is perfectly fine.

I disconnected the airbox and sprayed started fluid in the intake. It still would not hit.

So to recap.
I have spark
I have injector pulse
I have fuel pressure
battery tests OK

What am I missing here?

Any help is greatly appreciated.
Thanks
__________________
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07' 3.0si E83 (N52) with 134,000 miles
08' 3.0si E70 (N52) with 91,000 miles
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