Ticking Sound on top of engine...

spearfish25 · 08-02-2009, 12:58 PM

Those are normal sounds AK. My car does it as well. Don't worry about it.

AK370Z · 08-03-2009, 01:40 AM

Quote:

Originally Posted by spearfish25

Those are normal sounds AK. My car does it as well. Don't worry about it.

it's most likely exhaust/cat converter cooling and contracting.

cave vulture · 08-20-2009, 10:54 PM

I get the exact same sound after the car has warmed up and it is clearly audible from inside the Z while driving if you listen for it.

yamaha26 · 08-21-2009, 01:28 AM

Its the injectors. Every car does it, nissan is just a lot louder then others.

Shunya · 08-02-2009, 01:00 PM

heatshield from headers maybe? lol it's just a guess

Trips · 08-02-2009, 01:15 PM

Quote:

Originally Posted by zZSportZz

Being new to Nissan engines...is this normal? I can really hear it going through drive-throughs and stuff. Sorry for the noob question

First car I own that sounds like that.

Nothing to worry about its either the lifters ticking or the injectors and if you hear it after you have driven it and parked it is the exhaust cooling and contracting.

znism11 · 08-02-2009, 02:41 PM

Wow that is weird, it could be anything, I would take it in to your dealer ASAP.

My opinion would be, it sounds like leaky exhaust system, because my old 280zx
made similar sounds, I had it check out & the muffler guy found a small hole in exhaust pipe after the cat. In you case it could be either defective seals or if you ran over something it may have puncture a small hole somewhere in the syst.
Let us know the updates,

Znism11

g96818 · 08-02-2009, 04:29 PM

time bomb?
call the bomb squad!

KillerBee370 · 11-28-2009, 05:05 PM

Gotta be the injectors. While at the track after each session I would pop the hood and let the car run for awhile and you could really hear it when you put your head close to the windshield outside the car. Thing was ticking like a time bomb lol

EVL370 · 07-16-2010, 10:58 PM

Hey guys,

I'm getting a ticking sound too. I've only really notice it since the berk HFC's

Happens when my car is at idle.

It sounds like it's coming from the HFC area.

It happens like this. Tick tick tick tick normal normal normal normal tick tick tick.

However the hotter the engine gets the faster and less loud the ticks are.

My car has only done 900km.

I'm not sure if theres a issue with the cat's or its the VVL system ticking over.

TheWeatherman · 07-17-2010, 10:49 AM

Quote:

Originally Posted by EVL370

Hey guys,

I'm getting a ticking sound too. I've only really notice it since the berk HFC's

Happens when my car is at idle.

It sounds like it's coming from the HFC area.

It happens like this. Tick tick tick tick normal normal normal normal tick tick tick.

However the hotter the engine gets the faster and less loud the ticks are.

My car has only done 900km.

I'm not sure if theres a issue with the cat's or its the VVL system ticking over.

I'm with EVL370. The VVL system, or just the valvetrain in general. My '09 FX35 doesn't make the noise, so I'm thinking it's something with the infinitely variable system on the VQ37 vs. VQ35HR. I really believe that's why Nissan would like us using the Nissan Ester Oil. It must diminish that sound, though I've been using it since day 1, have 16,300 miles, and I still hear it at idle. Tick tick tick tick... One tick per revolution. It's a little noisy from the outside, but she runs just fine. I'm not worried.

I believe this is what the OP could be talking about. AK, I have the ticking cats as well. The 370 is a machine of its own. With all of the noises, everything still works the way it was designed from what I have gathered so far.

EVL370 · 07-17-2010, 10:44 PM

Quote:

Originally Posted by TheWeatherman

I'm with EVL370. The VVL system, or just the valvetrain in general. My '09 FX35 doesn't make the noise, so I'm thinking it's something with the infinitely variable system on the VQ37 vs. VQ35HR. I really believe that's why Nissan would like us using the Nissan Ester Oil. It must diminish that sound, though I've been using it since day 1, have 16,300 miles, and I still hear it at idle. Tick tick tick tick... One tick per revolution. It's a little noisy from the outside, but she runs just fine. I'm not worried.

I believe this is what the OP could be talking about. AK, I have the ticking cats as well. The 370 is a machine of its own. With all of the noises, everything still works the way it was designed from what I have gathered so far.

Well my car hasn't had its first service yet. So its got the factory Ester oil in it.

I might pull off the right side cat and have a look. Atleast the ticking sound goes away as the revs climb.

Just the ticking comes from a weird spot. Between the right side cat and the transmission.

GingaBreadMan · 07-17-2010, 09:14 PM

I don't ever hear this ticking noise, no matter how hard I drive my Benz. I don't hear it when I drive Bimmers either.

GTLAW · 08-23-2010, 11:56 AM

I have 1600 miles on my 2010. I am getting a ticking sound when I go over 4KRPM.

It's only between 4K and 5K RPM.. Anyone have this? It's coming from top of the Engine

ryanboy · 03-17-2011, 03:46 PM

hey guys since i got my car in 2009, i have been researching this issue all over the planet because the noise really bugs me sometimes. its the LIFTERS by the way. here is the best answer that makes sense an expert told me:

""This is not normal, but it does happen. It's the lifters, 100 % positive on that one. You will distinctively tell the difference between a rod knock and a lifter. A rod knock will most definitely cause your car to run like sh*t as well.

Anyhow, let's go about ways to solve the issue if you want the noise to go away.

A: Run the car at 2000 rpm's for 10 minutes. This acts as a "bleeding" method to the lifters to get the air out of them. This should have been done right when the engine was started the first time.

B: Most of the time, in your case, people who run the car for as long as it has without bleeding them will have to literally take the lifters out of the car, take them apart and soak it in fresh oil. Putting them back together and making sure they don't flip upside-down to let air in and reinstall them will ensure the noise to go away after they are bled using method A once the engine is first started up after re-installation.

Again, this is NOT normal, it just so happens the fallacy of people countlessly repeating it's normal has stuck. I'm not saying you have to do this or your engine will fail from a valve seizing from a failed lifter, because lifters ticking like yours is not a big deal.

Sometimes you just can't do anything about it as they will always tick no matter what you do, but most of the time this is solvable using the above methods, but people are lazy/don't want to take the engine apart (or know how to).

So if it bugs you enough, it's time to take those rocker covers off. Good luck.""

ps... im not going to take my engine apart just for this bull crap noise! ill just deal with it since it doesnt mess with the performance! i wonder if the GT-R has the same problem...

08-02-2009, 04:29 PM	#8 (permalink)
g96818 Track Member Join Date: May 2009 Location: A rock in a big pond Posts: 681 Drives: 2009 370Z, 2012 M56 Rep Power: 3394	time bomb? call the bomb squad! __________________ CZP are lying thieves!

07-17-2010, 09:14 PM	#13 (permalink)
GingaBreadMan Enthusiast Member Join Date: Jun 2009 Location: New York Posts: 313 Drives: 09 370z Sport 6spd Rep Power: 16	I don't ever hear this ticking noise, no matter how hard I drive my Benz. I don't hear it when I drive Bimmers either. __________________ ClearBra/Debadging/Tinted Head & Taillights Coming Soon:180° Customs Headlights/ISS Forged Spyder 19" 265*305/Swift Springs/STS Rear Mount Turbo

08-23-2010, 11:56 AM	#14 (permalink)
GTLAW Enthusiast Member Join Date: Jun 2010 Location: Columbia MD Posts: 373 Drives: Black ??? Rep Power: 15	I have 1600 miles on my 2010. I am getting a ticking sound when I go over 4KRPM. It's only between 4K and 5K RPM.. Anyone have this? It's coming from top of the Engine __________________ 2013 6MT IPL GrSh\|V-Leds\|OSRAM \| SWIFT \| H&R \| CUSCO \| HKS \| 3M \|

03-17-2011, 03:46 PM	#15 (permalink)
ryanboy Base Member Join Date: Mar 2010 Location: Chicagoland Posts: 201 Drives: Red z34 09 0060 Rep Power: 16	hey guys since i got my car in 2009, i have been researching this issue all over the planet because the noise really bugs me sometimes. its the LIFTERS by the way. here is the best answer that makes sense an expert told me: ""This is not normal, but it does happen. It's the lifters, 100 % positive on that one. You will distinctively tell the difference between a rod knock and a lifter. A rod knock will most definitely cause your car to run like sh*t as well. Anyhow, let's go about ways to solve the issue if you want the noise to go away. A: Run the car at 2000 rpm's for 10 minutes. This acts as a "bleeding" method to the lifters to get the air out of them. This should have been done right when the engine was started the first time. B: Most of the time, in your case, people who run the car for as long as it has without bleeding them will have to literally take the lifters out of the car, take them apart and soak it in fresh oil. Putting them back together and making sure they don't flip upside-down to let air in and reinstall them will ensure the noise to go away after they are bled using method A once the engine is first started up after re-installation. Again, this is NOT normal, it just so happens the fallacy of people countlessly repeating it's normal has stuck. I'm not saying you have to do this or your engine will fail from a valve seizing from a failed lifter, because lifters ticking like yours is not a big deal. Sometimes you just can't do anything about it as they will always tick no matter what you do, but most of the time this is solvable using the above methods, but people are lazy/don't want to take the engine apart (or know how to). So if it bugs you enough, it's time to take those rocker covers off. Good luck."" ps... im not going to take my engine apart just for this bull crap noise! ill just deal with it since it doesnt mess with the performance! i wonder if the GT-R has the same problem... __________________ Slut RED Nismo Z34 2009 #60

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08-02-2009, 12:58 PM	#1 (permalink)
spearfish25 A True Z Fanatic Join Date: Mar 2009 Location: Naples, FL Posts: 4,117 Drives: to work Rep Power: 1857	Those are normal sounds AK. My car does it as well. Don't worry about it.

08-20-2009, 10:54 PM	#3 (permalink)
cave vulture Enthusiast Member Join Date: May 2009 Location: pennsylvania Posts: 427 Drives: 370z tour,sport,auto Rep Power: 16	I get the exact same sound after the car has warmed up and it is clearly audible from inside the Z while driving if you listen for it.

08-21-2009, 01:28 AM	#4 (permalink)
yamaha26 Base Member Join Date: Jul 2009 Location: Tennessee Posts: 2 Drives: 86 Toyota Rep Power: 16	Its the injectors. Every car does it, nissan is just a lot louder then others.

08-02-2009, 01:00 PM	#5 (permalink)
Shunya A True Z Fanatic Join Date: May 2009 Location: Vancouver Posts: 3,069 Drives: You Crazy! Rep Power: 22	heatshield from headers maybe? lol it's just a guess

08-02-2009, 02:41 PM	#7 (permalink)
znism11 Base Member Join Date: Jul 2009 Location: Texas Posts: 9 Drives: 370z Nismo Rep Power: 16	Wow that is weird, it could be anything, I would take it in to your dealer ASAP. My opinion would be, it sounds like leaky exhaust system, because my old 280zx made similar sounds, I had it check out & the muffler guy found a small hole in exhaust pipe after the cat. In you case it could be either defective seals or if you ran over something it may have puncture a small hole somewhere in the syst. Let us know the updates, Znism11

11-28-2009, 05:05 PM	#9 (permalink)
KillerBee370 A True Z Fanatic Join Date: Mar 2009 Location: So Cal baby! Age: 52 Posts: 5,964 Drives: with passion Rep Power: 322	Gotta be the injectors. While at the track after each session I would pop the hood and let the car run for awhile and you could really hear it when you put your head close to the windshield outside the car. Thing was ticking like a time bomb lol

07-16-2010, 10:58 PM	#10 (permalink)
EVL370 Base Member Join Date: Dec 2009 Location: Melbourne Posts: 209 Drives: Nissan 370Z Rep Power: 16	Hey guys, I'm getting a ticking sound too. I've only really notice it since the berk HFC's Happens when my car is at idle. It sounds like it's coming from the HFC area. It happens like this. Tick tick tick tick normal normal normal normal tick tick tick. However the hotter the engine gets the faster and less loud the ticks are. My car has only done 900km. I'm not sure if theres a issue with the cat's or its the VVL system ticking over.

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