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My girl has a 2008 mercedes E350, the car is cranking strong

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but will not start. We...
My girl has a 2008 mercedes E350, the car is cranking strong but will not start. We replaced fuel sender/filter (part # A1714700890) and relay, fuse is fine, and now we just replaced the crankshaft sensor!!!! Can anyone please help
Submitted: 1 year ago.Category: Mercedes
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9/23/2016
Mercedes Mechanic: Dan, ASE Certified Technician replied 1 year ago
Dan
Dan, ASE Certified Technician
Category: Mercedes
Satisfied Customers: 1,698
Experience: Auto Technician
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Hello my name is***** am an ASE Master Technician and I am glad to help you out with your question.

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Mercedes Mechanic: Dan, ASE Certified Technician replied 1 year ago

The first step is getting an engine scan done for any codes that may be causing the no start problem.

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Customer reply replied 1 year ago
We only recieved 2 codes p0025, and i believe the other was p2006
Customer reply replied 1 year ago
Hello???
Mercedes Mechanic: Dan, ASE Certified Technician replied 1 year ago

The engines intake manifold needs to be replaced for the p2006 code, the p0025 could be caused by low oil level. Have you checked the oil level?

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Customer reply replied 1 year ago
Oil level, and pressure are fine...
Mercedes Mechanic: Dan, ASE Certified Technician replied 1 year ago

A common problem for the p0025 is the exhaust cam solenoid, it should only be about $25 to replace. The generic description says that it is the left exhaust cam so I would feel confident with that. The solenoid is behind the power steering reservoir on the drivers side.

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Customer reply replied 1 year ago
Sorry to sound disgruntled mr. Ase master, but i was told from mercedes that neither of the codes would cause this issue
Mercedes Mechanic: Dan, ASE Certified Technician replied 1 year ago

Ok so you don't need help, I will opt out and another expert will be with you shortly.

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Customer reply replied 1 year ago
Quitter!!!! Obviously i need help.
Mercedes Mechanic: Dan, ASE Certified Technician replied 1 year ago

I honestly am trying to help you, I understand this can be frustrating. Keep in mind it can be difficult to diagnose a vehicle over the internet. I am not there to look at the vehicle and use any type of diagnostic tools that are readily available in a shop. I am going by the info that I have which was 2 DTC's and a no start. You need to check fuel pressure, spark, injector pulse, and compression and see which one you do not have. The codes are most likely prior and not affecting the no start at all.

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Customer reply replied 1 year ago
Spray starting fluid in it and she runs like a champ
Customer reply replied 1 year ago
i apologize as well, just im a really good back door mechanic, and this is literally the first vehicle giving me shit
Mercedes Mechanic: Dan, ASE Certified Technician replied 1 year ago

Have you checked voltage at the fuel pump while cranking?

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Mercedes Mechanic: Dan, ASE Certified Technician replied 1 year ago

Do you have a wiring diagram for the fuel pump?

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Mercedes Mechanic: Dan, ASE Certified Technician replied 1 year ago

If it runs with starting fluid, you have spark, compression and injector pulse, so that leaves fuel pressure.

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Customer reply replied 1 year ago
was a tight fit but voltage was normal on old and new pump
Mercedes Mechanic: Dan, ASE Certified Technician replied 1 year ago

Do you have fuel pressure at the rail?

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Mercedes Mechanic: Dan, ASE Certified Technician replied 1 year ago

Can you hear the pump running?

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Mercedes Mechanic: Dan, ASE Certified Technician replied 1 year ago

Is there fuel in the tank?

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Customer reply replied 1 year ago
Can not hear pump running but when i took off fuel line to rail...i got sprayed
Customer reply replied 1 year ago
Almost like the fuel primes, but doest stay steady
Mercedes Mechanic: Dan, ASE Certified Technician replied 1 year ago

Do you have injector pulse?

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Mercedes Mechanic: Dan, ASE Certified Technician replied 1 year ago

You could have pressure to injectors but they are not opening or closing, you should have 12 volts to each injector and the pcm controls the ground

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Mercedes Mechanic: Dan, ASE Certified Technician replied 1 year ago

Do you have a noid light?

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Customer reply replied 1 year ago
Injector pulse not sure on that???
Mercedes Mechanic: Dan, ASE Certified Technician replied 1 year ago

You can make a noid light out of a license plate bulb, remove an injector connector and insert the bulb connectors into the harness, the bulb will blink while cranking if you have a pulse.

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Mercedes Mechanic: Dan, ASE Certified Technician replied 1 year ago

Connect the bulb in series, polarity does not matter.

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Mercedes Mechanic: Dan, ASE Certified Technician replied 1 year ago

This could be related to that exhaust cam solenoid dtc that you have stored. The power for the injectors goes through that solenoid.

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Mercedes Mechanic: Dan, ASE Certified Technician replied 1 year ago

I am looking at the wiring diagram now.

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Mercedes Mechanic: Dan, ASE Certified Technician replied 1 year ago

p0025 is the code for the exhaust cam solenoid

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Customer reply replied 1 year ago
Ok dan showing pulse, and i replaced the exhaust cam solenoid for shits and giggles......still nothing
Mercedes Mechanic: Dan, ASE Certified Technician replied 1 year ago

The next step is to connect a fuel pressure gauge at the fuel rail.

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Mercedes Mechanic: Dan, ASE Certified Technician replied 1 year ago

Hello again Dan here,

I am contacting you because the post has not been closed or rated.

This question is coming up on 7 days which means it will time out and close.

You have already paid to get this question answered, but you have not rated.

Let me help some more. Is there anything else I can help you with?

If I did not give you 5 star service, please let me know what I missed.

Thanks

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Customer reply replied 1 year ago
I got rid of 2 codes and got a new one for an ect sensor
Mercedes Mechanic: Dan, ASE Certified Technician replied 1 year ago

Do you have the code number?

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Customer reply replied 1 year ago
Po118
Mercedes Mechanic: Dan, ASE Certified Technician replied 1 year ago

It is common for the thermostat to stick on this vehicle and cause this code.

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Customer reply replied 1 year ago
Is the ect an easy fix or should i start with the thermostat......could it fix my issue??
Mercedes Mechanic: Dan, ASE Certified Technician replied 1 year ago

The ect is on the left side of the engine.

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Mercedes Mechanic: Dan, ASE Certified Technician replied 1 year ago

Start with ect but this could also be a thermostat issue.

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