ticking noise (engine bay)

713bmw318ti · 07-23-2009, 03:59 AM

My car runs good, i dont hear the ticking noise at idle i only hear it after its been driven and only when im standing outside of the car.(I only hear it everyonce in a while). I first started to hear this ticking noise when i first changed the oil to 5w-30. (bmw motor oil) I dont know where this noise is coming from but its really getting on my nerves.

Xenocide · 07-23-2009, 04:01 AM

Oil level??

Lets get a sound clip.

713bmw318ti · 07-23-2009, 04:06 AM

Oil level is good i always check it. I just did an oil change last week switched back to 20w-50. The wierd part is it does not do it all the time. I will post a sound clip of it tomorrow if it makes the ticking noise. Its not a really loud ticking noise so idk if you will be able to hear it.

Xenocide · 07-23-2009, 04:09 AM

valve tick is not common on the m42/4 and the 4cyl does not have vanos. Are you sure its not one of your pulleys/accessories? That would be my first thought.

Maverix · 07-23-2009, 04:15 AM

Does it sound like it's coming from underneath the intake manifold?

713bmw318ti · 07-23-2009, 04:18 AM

I replaced one medium sized pulley and belts and the tensioner. so idk..a friend told me it was because i used 5w-30 and its to thin and oil wasn't running through the engine like its suppost to. IDK i just started doing mechaninc work when i first got my Ti so im still learning.

Xenocide · 07-23-2009, 04:19 AM

5w30 is fine in these engines, hell I ran 0w40 in my M42, granted it made it piss oil from every single orifice, but I sure found all the oil leaks

I would think 20w50 is wayyy to thick.

I ran 15w50 in my M50 because I was having oil starvation problems, from what I thought was too thin of oil with a bad oil pickup. Ended up not being the problem and I will be running a 5w30 or 10w40 on my next oil change

318ti_pt · 08-01-2009, 12:40 PM

speaking of oil level..

does the m42 has a lot spend of oil in the motor by the exhaust that we have to put more oil in the motor often?

mgbman69 · 08-01-2009, 03:24 PM

Quote:

Originally Posted by 318ti_pt

speaking of oil level..

does the m42 has a lot spend of oil in the motor by the exhaust that we have to put more oil in the motor often?

What you're trying to say is not very clear.

I can tell you that my M44 Ti uses no oil between changes. No leaks either.
It's got 147xxx miles and is pretty typical as far as condition goes.

Dusty_Hale · 08-10-2009, 06:14 AM

It may be the water pump pulley/impeller assembly. Mine did the same thing, until the impeller decided to break inside the pump, and jam the whole thing in there pretty good. It took the BMW dealership 2 hours to remove it because of the way it broke.

Just a possibility.

**xxxJohnBoyxxx** · 08-10-2009, 09:48 PM

Quote:

Originally Posted by 713bmw318ti

My car runs good, i dont hear the ticking noise at idle i only hear it after its been driven and only when im standing outside of the car.(I only hear it everyonce in a while). I first started to hear this ticking noise when i first changed the oil to 5w-30. (bmw motor oil) I dont know where this noise is coming from but its really getting on my nerves.

If M44 maybe a weak lifter causing a valve-train tap. Is it rpm related?

713bmw318ti · 08-19-2009, 04:38 AM

I was listening to the ticking noise today, it is more noticeable when i put my ear closer to the grill area. Do ya'll think it can be the waterpump making that noise? I dont think its ever been replaced.

Xenocide · 08-19-2009, 04:40 AM

possible, mine made a grinding noise when it went out.

FLJayson318 · 08-20-2009, 02:01 AM

I have a 95 and i think i heard the same exact noise coming from my engine bay today.It was actually when i was getting my car back from outa the shop.... Even though it was getting only body work done since an accident, i was freaked as SH!T. First things first was i checked my oil level and it was low. I imediately drove my car home and checked the oil level right when i pulled in the garage and everything was fine, the noise went away.... It was really strange. how can the oil level be right at the bottom line then i drive my car home and it was all the way full? idk

Ive had the water pump replaced about a year ago so idk what else it could be.

**xxxJohnBoyxxx** · 08-22-2009, 01:02 PM

Quote:

Originally Posted by FLJayson318

I have a 95 and i think i heard the same exact noise coming from my engine bay today.It was actually when i was getting my car back from outa the shop.... Even though it was getting only body work done since an accident, i was freaked as SH!T. First things first was i checked my oil level and it was low. I imediately drove my car home and checked the oil level right when i pulled in the garage and everything was fine, the noise went away.... It was really strange. how can the oil level be right at the bottom line then i drive my car home and it was all the way full? idk

Ive had the water pump replaced about a year ago so idk what else it could be.

I can explain that. Did you double dip when you checked the oil? If not that is the issue. If you only pull out the dip stick one time to check the o-rings seal on the dip stick tube give a false reading (low 1 quart). You need to break the o-ring seal on the dip stick tube, wipe the dip stick then take the reading. I learned this 15 years ago when I only pulled then stick and read it immediately. My wifes car was always a quart low when I checked so I added a quart every 2-3 weeks. Soon the car started to run like crap so she took it in and the shop noted like 13 quarts in the oil pan. Boy did I feel like a idoit and I was good with motors back then...at least I thought I was

Added ~ Your dip stick o-rings are good. The motor starts and pulls oil to circulate through the motor. The pan does go a little low when the motor is running, this is normal. The dip stick tube gets a air pocket in it and you shut off the car. Good o-rings seal the air pocket in the tube and keep oil from entering the tube so when you pull the stick the first time you get a low reading. That's the theroy I'm sticking with

Always double dip

Added#2 ~ Valve Tap Explained...What you heard was a valve tap. This is very common with BMW I-4's. When the engine is turned off and the camshaft stops with a valve in the open high position the hydralic lifter is under high spring load while the car is off. The hydralic lifter bleeds down and all it's oil is lost and the spring inside that lifter is compressed. When the motor is started the lifter is compressed and there is excessive valve lash between the rocker arm and the valve stem which causes the taping noise (??is she going to blow??). This can last for up to 20 minutes while the lifter is pumped up with oil to automatically adjust out the accessive valve lash. This is completely normal and happens on all our motors at some time or another, especially on cold days. I would not worry about it. I've been in your car a couple times and it seems like a well maintained good running BMW. Your oil was like honey when I checked it and I don't see any reason why you won't get another 100K out of that ride unless you get hit by a "blue hair" that can't see over the steering wheel...

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