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General E46 Forum
This is the place to get answers, opinions and everything you need related to your E46 (sedan, coupe, convertible and wagon) BMW!

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Old 03-10-2016, 12:49 AM   #1
gslother
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2005 e46 zhp ticking help!!!

Aloha, I know there are several threads on here as well as other sites about this issue with this engine. They do not contain any answers!

Vehicle: 2005 330i ZHP 48,000 miles

Problem: I have ticking noise that comes once the vehicle gets to normal operating temp. On cold starts the engine is super smooth and quiet. Once it gets warm it starts and is consistent. It does not go away.

I have replaced spark plugs, pullys, new belt. Cam position sensors and I even had all the lifters replaced with brand new ones. The timing chain guide is good condition.

I am pulling P171 and P174 codes but don't believe that a vaccume leak would generate this type of noise. I am going to check this weekend for the leak.

Below is the video with the sound. This noise is driving me crazy. Thanks for the help!

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Old 03-11-2016, 01:44 PM   #2
bimmernut3
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I too have a '05 330Cic ZHP (convertible) with 54k on the odometer. Having had many BMW's (5 in the driveway now) what I hear is a sticking lifter. If I were to make a suggestion to you that may help. Get a can of SeaFoam & add to the crankcase. It will not hurt your engine. This is pretty good stuff to clean any deposit(s) I have used it in the past, just for normal internal engine cleaning. I would usually add it 300-400 miles before next oil change, this way cleaning inside lifters and oil passages, then do my oil change. Got a can on the bench right now wait until it's time. Check it out here.
http://seafoamsales.com/auto/
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Last edited by Solidjake; 03-11-2016 at 01:44 PM.
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Old 03-11-2016, 02:07 PM   #3
mr ilia
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If you know it is your valve lifters ticking, then Sefoam the engine. Have in your crank case for about 500-1000 mi before your oil change.
Also bad cam position sensor will cause engine to tick, injectors actually would tick with the bad sensor.

May be your injectors are ticking and not valves?
Loud injectors are nothing to worry about.

You will have to isolate the source of noise.
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Old 03-11-2016, 03:07 PM   #4
gslother
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Not the lifters

I understand what you mean with the sea foam however I had all the lifters replaced and the noise remained the same. It's defiantly not the cam position sensors I had both replaced. This also isn't the injectors.

Last edited by gslother; 03-11-2016 at 03:09 PM.
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Old 03-11-2016, 03:11 PM   #5
Silverdogz
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Are any of the belts shifting around?
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Old 03-11-2016, 03:50 PM   #6
bimmernut3
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Quote:
Originally Posted by gslother View Post
I understand what you mean with the sea foam however I had all the lifters replaced and the noise remained the same. It's defiantly not the cam position sensors I had both replaced. This also isn't the injectors.
@GS......if the walls of the lifter inserts have any "GUM" on the walls or if the hydraulic channels to them are restricted, they will "stick" & make that tapping sound. Spend the $8 bucks & try the SeaFoam. At the least, it will clean things & $8 bucks is not expensive to at least rule that out. Just sayin.....We're here.r at least me, trying to help you, not send you on wild goose caches.
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Old 03-11-2016, 03:56 PM   #7
gslother
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Originally Posted by bimmernut3 View Post
@GS......if the walls of the lifter inserts have any "GUM" on the walls or if the hydraulic channels to them are restricted, they will "stick" & make that tapping sound. Spend the $8 bucks & try the SeaFoam. At the least, it will clean things & $8 bucks is not expensive to at least rule that out. Just sayin.....We're here.r at least me, trying to help you, not send you on wild goose caches.
Understand, I will try that. Still have a few thousand before next oil change. I hope that will work. Noise is driving me crazy!
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Old 03-12-2016, 08:15 AM   #8
markusmarkus
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How do you drive the car? Do you accelerate to redline occasionally? These engines are highly tuned and need to be "pushed" every so often. I have a friend with a 2002 330i. She drives the car like a grandma would. The engine developed lifter ticks. She spent a lot of money trying to get rid of the ticking. I told her take the car on a 20 mile highway speed+ run in 4th gear (it's a 5-speed manual) on a weekly basis. Her ticking noise is gone!
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Old 03-12-2016, 01:32 PM   #9
Dave1027
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Could it be an exhaust manifold leak? Seems like the noise is loudest on the passenger side wheel well.
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Old 03-12-2016, 03:16 PM   #10
Phillips0417
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Originally Posted by Dave1027 View Post
Could it be an exhaust manifold leak? Seems like the noise is loudest on the passenger side wheel well.
Bingo, this is what I was going to suggest as well. Sure seems like the sound is louder / more prominent on the exhaust side of the engine.
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Old 03-13-2016, 02:01 PM   #11
gslother
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Originally Posted by Phillips0417 View Post
Bingo, this is what I was going to suggest as well. Sure seems like the sound is louder / more prominent on the exhaust side of the engine.
Would that make sense that on cold starts it does not make the noise untill it gets up to temp?
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Old 02-02-2017, 09:20 PM   #12
derek502
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Originally Posted by gslother View Post
Would that make sense that on cold starts it does not make the noise untill it gets up to temp?
Did you ever fix the ticking noise? My ZHP is making the exact same sound.
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Old 02-02-2017, 09:23 PM   #13
gslother
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Derek never fixed it. Sold the car couldn't take the noise.
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Old 03-31-2017, 08:13 PM   #14
tiggaatl
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Has anyone found any information for this? My ZHP is doing the same thing
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