There was a loss of power and then completely shut off, crank no start?

Tiny
NICK98568
  • MEMBER
  • 2013 BMW 328XI
  • 2.0L
  • V6
  • TURBO
  • 4WD
  • AUTOMATIC
  • 108,000 MILES
My car had a loss of power and then completely shut off. I tried to tow it, but the car would not shift gears at all. I had to manually get under the car and do it. The car cranks but does not start. Battery was replaced and the fuel pump was replaced. The car is getting fuel and has spark.
Friday, June 23rd, 2023 AT 12:17 PM

7 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,758 POSTS
Hi,

If that is the engine cranking, you lost compression. It doesn't sound like there is any.

If the timing chain broke or jumped time, that is what can happen. To make matters worse, I believe all 328i vehicles with the 2.0L are interference engines.

What I need you to do is check engine compression.

Here is a link that explains how it's done:

https://www.2carpros.com/articles/how-to-test-engine-compression

You will need a compression gauge, but if you don't have one, most parts stores will lend one to you. Note: Compression should be between 100 psi and 150 psi with a maximum variation of 30 psi between cylinders. I have a feeling you are going to find 0 psi or extremely low compression. If that is the case, we will need to inspect the timing chain and timing.

Do this and let me know the results.

Take care,

Joe
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Friday, June 23rd, 2023 AT 9:25 PM
Tiny
NICK98568
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The car has no compression.
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Wednesday, June 28th, 2023 AT 4:55 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,758 POSTS
Hi,

I had a feeling. That is what it sounded like in the video. The interesting thing is it has a chain and not a belt. Normally, a chain will last the life of the engine. At 108K, it shouldn't have failed.

Do you plan to remove and inspect things such as the timing chain and cylinder head?

Let me know.

Joe
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Wednesday, June 28th, 2023 AT 9:12 PM
Tiny
NICK98568
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Yes, I’m removing it.
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Thursday, June 29th, 2023 AT 6:19 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,758 POSTS
Hi,

Sounds like a plan. If you have a chance, could you let me know what you find? I'm interested in knowing.

Also, I don't know if you need them, but I attached the directions for the removal and installation of the cylinder head. These are just for the head. If you need anything other, let me know.

Take care,

Joe

See pics below.
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Thursday, June 29th, 2023 AT 10:08 PM
Tiny
NICK98568
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The guide of the timing chain is broken.
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Friday, June 30th, 2023 AT 6:05 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,758 POSTS
Hi,

That isn't good news. There is a good chance internal damage was done to the cylinder head, pistons, or valves.

Now that you know the timing chain failed, we need to remove the cylinder head to check for damage.

Do you need anything as far as the timing chain/tensioner replacement? If you do, let me know.

Take care,

Joe
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Friday, June 30th, 2023 AT 9:10 PM

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