Friday, April 28, 2017

Spark Plug Replacement 101

Spark Plug Replacement 101
BMW 330i 2006 E90

I've heard a Car Tech say that one should change out the spark plugs on a car every 100K miles, if not before.  Most people don't change them at their recommended lifespan, unfortunately I am one of those people.  Not because it's expensive or a hassle, mainly it's because the car runs fine, and so I ask myself, do i really need to...

At the end you lose if you don't, let me tell you why:

First: Old spark plugs decrease the engine power, and because you get less power you tend to be heavy footed when you... let's just say, drive spiritedly, right?  Not to mention you get terrible gas mileage, as if the car didn't get bad gas mileage already, right... but that is beside the point.  The point I am trying to make is that, the car will feel heavy, when you have old spark plugs.

Second:  Because you are not getting full spark inside the engine or "poor" spark inside the cylinder of the engine you can get "build" up or Zut, inside the cylinder, which eventually will require service.  This can rob you engine of power, there is a solution, if you already have zut build up.  It's called Walnut Spray Wand.

Here is a link to Bavarian Autosport for the part if you need it: Walnut Spray Wand Blaster, it's a pretty cool idea, and it's something that should be done to all BMW's if you ask me.  To be very honest I am a little scared to do it myself because it's so involved, but I thought I would mention it, in case you didn't know about this.  Plenty of Videos on Youtube, if you are interested in more information.

Third:  You can ruin other parts of the car, that wouldn't otherwise go bad, like the Catalytic converter, or even the injectors.  Why???  Because the car doesn't run smooth, you tend the push the car to get more power and thus, ruining other parts that wouldn't other wise go bad.

When to change the Spark Plugs:
The I-drive will remind you to change the spark plugs, if your car is equipped with an I-drive.  I am replacing my spark plugs every 100K, with zero issues.  But ultimately it's up to you when to do it.

New Spark Plugs:
I got my spark plugs from Amazon, my car is a 2006 BMW 330i,

Amazon link at the bottom of the article...

Thin Wall Socket:
You will also need a "thin wall" socket:  Amazon link below... trust me you will need one, get one if you don't own one, you will thank me later.

I replaced my spark plugs by myself before, it was not difficult.  I used NGK's, and that was 100K miles ago, I think the ones in the engine are still good, but I rather replace them, just to get peak performance, among other benefits.

My car currently has over 200K, and still going strong.



Thanks for Bavauto.com for the pictures.  I've bought many things from then, they are always fast to ship, and they have good prices.  I am not getting any money for saying this, I just like their service.

Amazon links below to products in article:

Sunday, April 9, 2017

E90 Fuel Rail Line Gasoline Leak, and Hose Replacement



E90 Fuel Rail Line Hose Gasoline Leak

For about a week, I've noticed a subtle smell of Gasoline, it came through the Air Vents, and for a while I thought it was not my car... perhaps the car next to me I thought and during those few days, day by day, I started to get worried that I may have a gasoline leak.  The Smell of Gasoline wasn't extremely intense but worrisome.

I haven't noticed any stains or leaks in my driveway, but I knew I would have to get to the bottom of this problem, because if left unattended it could be very dangerous.

Finally a couple days ago, as I am getting out of my car I notice a very strong smell of gasoline, unusually strong, and I knew I had to do something about it.  I didn't see any gasoline, but boy could I smell it.

Video shows the fuel coming out...


Fuel Line Video

To my surprise the problem was very obvious, also extremely dangerous.  Because I had just come back from a trip and my engine bay was "very" hot.  I was afraid that a fire could start if left unattended, so I set off trying to unplug and clean the gasoline that was still leaking out.

Oddly enough, I could hear the problem, I heard a hissing, I think it was air escaping from the gas tank, I could hear it bubbling too, later confirmed when I removed the cover off the engine bay.

The Quest to Fix the gas hose

In my quest to get a replacement hose, I realized that this does tend to happen, and unfortunately I could only find it on Ebay, other than BMW.  I could find No part number or where to get it.  So here it is: Ebay Link,

I found it cheaper at ECS tuning, here is the new link. Updated 3/5/2019
ECS tuning Website link to Gas hose

I recommend getting the hose from the dealer but it's $60 dollars cheaper at ECS tuning, so I'll leave it up to you.

The price on Ebay is reasonable, compared to New from BMW, I decided to buy a new one, because it's such an important part, I didn't want any issues with a used part, this is the part number printed on the out side of the "new" Hose:

From BMW South County, San Diego CA:
Part # 13 53 7 560 586
Price $157.21

How to Disconnect the Fuel Rail Line: Push the hose back into the connector, and push in on the Blue plastic, push in the blue plastic evenly, and the line slides off.  It takes a little bit of practice, it took me about 6 tries to get it.

Push <--- back on the hose towards the spigot, and then Push ---> forward on the "blue" plastic, only, evenly.  Then quickly pull out the hose.

 How to Connect the Fuel Rail Line: Push the Fuel Line hose back into the spigot, and it snaps back in.


Be very careful, a hot engine bay and Gasoline could set off a fire.
When you remove the Fuel Line, Fuel will come out.  I waited until my car engine was cold to start working on the car.

Tip: If there is NO pressure on the line, the hose can move freely back and forth freely, which would mean there is a leak in the line, BUT... if the fuel line is pressurize the hose will NOT move back and forth, and it feel solidly connected to the spigot, in the rail line.


Metal cover, protecting the Other end of the hose, below
the Car
To remove the hose, there was only one part that really gave me a hard time, because I didn't know what to expect.  It was a shield cover that is covering the other end of the hose.  After removing all the Obvious nuts I believe it was 3, the metal shield would not come out.  After a little bit of investigation I noticed that there is a 10mm nut on the other side of the shield, that you can't see easily.  After I removed that last nut, it came out and I could get "full" access to the hose.

I have to say that I struggled to disconnect the other side of the hose, because the spigot on the other end is made of plastic, but this is the trick...

Other End,
Below the car
This is what I did to disconnect it:

I know you can find a tool to disconnect the hose, but I am no professional so I don't have it, so this is what I did:

Find yourself a wrench that is the same size as the blue part on the Hose,
Note: your hose may have a "Green" quick disconnect not blue like mine.

Now using a wrench, use the "U" part, put it on the end of the Fuel line hose, and while holding the hose, put pressure on the "Blue" quick connect, "Press IN" on the Hose, while you apply pressure inward for a second or two, then quickly pull the hose out.

It took me half an hour to do this, so don't get discouraged, because if you rush this part you will need to buy more than just the hose to fix this.  It's going to feel like it's not working, but keep working it.

Take your time... note that when you remove the fuel line, FUEL will come out, so be prepared with a rag or "Pig mat" to absorb the fuel.

Support Jack

This is where I put the support for the car, I had to remove a cover by the wheel well to get access to it.  I left both the jack and the support stand on the car as an extra safety precaution, I think you should too if you are doing this.  I ended up removing the wheel too, to get better access to the bottom of the car.  I removed the Left side Driver side wheel.


I hope this helps you remove and replace the hose, it was a learning experience for me.  But well worth it, because taking it to the dealer would have cost me easily $500 dollars.

If you have the time, I recommend replacing this part too, specially if you've never had it replaced before: OIL Filter Housing "Gasket".  It's about $5 dollars, so well worth it in my opinion:

OIL FILTER HOUSING GASKET:  I noticed a lot of oil coming from the Oil Filter Housing while looking for the fuel line, and I figured while I am here might as well do it too, you do need specialty tools to reach some of the bolts, plenty of video's online showing you how...
 


Part number for the is:
 11 42 7 537 293

from BMW South County.


Good Luck with all your car work, and thank you for reading this far.  Until next time.


Consider donating if this was helpful to you!



Follow me on Facebook