weird sound around 3k revs
April-9th-2003, 09:42 PM
#1
can i get a liter cola?
Thread Starter
Join Date: Jan 2003
Location: lakeville, mn
Posts: 233
weird sound around 3k revs
i don't know if this is something with my car or all proteges, but when the engine goes over 3k, it sounds like a turbo spooling up, and i know i don't have one. then when the revs drop back down below 3k, there is a rattling sound, and i have no clue what it is. it doesn't do it anywhere else in the rev range, only at 3k. any ideas?
April-9th-2003, 10:58 PM
#2
Protege Newbie
Join Date: Oct 2002
Location: San Jose, CA
Posts: 9
There is a recall for this (I think this is your issue). Does it go away when the car warms up?
Here is info from Mazda:
Category: B Piston Engine
Repair Reference # 3562
Subject: 2.0L Engine noise with cold coolant temp
ALL 2.0L between 2001-2002 are affected
Customer may experience an engine rattle under light to moderate acceleration with engine coolant temps below 149 deg F and engine rpm's between 1500 to 2500.
Confirm noise only occurs within the VTCS ( Variable Tumble Control System) operation "valve closed" period (when ECT is below 149 deg F)
This noise is currently believed to be the result of the timing between VTCS plates "opening", and the ignition spark advanc command. This is an operating characteristic of this engine and no repair attempts should be made. Although the noise is present only during cold start up and disappears once the engine coolant reaches 149 degrees F, Mazda realizes that it is an annyance to some customers and its engineers are investigating possible countermeasures in an effort to address customer satisfaction.
Here is info from Mazda:
Category: B Piston Engine
Repair Reference # 3562
Subject: 2.0L Engine noise with cold coolant temp
ALL 2.0L between 2001-2002 are affected
Customer may experience an engine rattle under light to moderate acceleration with engine coolant temps below 149 deg F and engine rpm's between 1500 to 2500.
Confirm noise only occurs within the VTCS ( Variable Tumble Control System) operation "valve closed" period (when ECT is below 149 deg F)
This noise is currently believed to be the result of the timing between VTCS plates "opening", and the ignition spark advanc command. This is an operating characteristic of this engine and no repair attempts should be made. Although the noise is present only during cold start up and disappears once the engine coolant reaches 149 degrees F, Mazda realizes that it is an annyance to some customers and its engineers are investigating possible countermeasures in an effort to address customer satisfaction.
April-10th-2003, 12:56 AM
#4
Protege Anarchist
Join Date: Sep 2001
Location: Dallas, TX
Posts: 708
Originally posted by mtbjedi
There is a recall for this (I think this is your issue). Does it go away when the car warms up?
Here is info from Mazda:
Category: B Piston Engine
Repair Reference # 3562
Subject: 2.0L Engine noise with cold coolant temp
ALL 2.0L between 2001-2002 are affected
Customer may experience an engine rattle under light to moderate acceleration with engine coolant temps below 149 deg F and engine rpm's between 1500 to 2500.
Confirm noise only occurs within the VTCS ( Variable Tumble Control System) operation "valve closed" period (when ECT is below 149 deg F)
This noise is currently believed to be the result of the timing between VTCS plates "opening", and the ignition spark advanc command. This is an operating characteristic of this engine and no repair attempts should be made. Although the noise is present only during cold start up and disappears once the engine coolant reaches 149 degrees F, Mazda realizes that it is an annyance to some customers and its engineers are investigating possible countermeasures in an effort to address customer satisfaction.
There is a recall for this (I think this is your issue). Does it go away when the car warms up?
Here is info from Mazda:
Category: B Piston Engine
Repair Reference # 3562
Subject: 2.0L Engine noise with cold coolant temp
ALL 2.0L between 2001-2002 are affected
Customer may experience an engine rattle under light to moderate acceleration with engine coolant temps below 149 deg F and engine rpm's between 1500 to 2500.
Confirm noise only occurs within the VTCS ( Variable Tumble Control System) operation "valve closed" period (when ECT is below 149 deg F)
This noise is currently believed to be the result of the timing between VTCS plates "opening", and the ignition spark advanc command. This is an operating characteristic of this engine and no repair attempts should be made. Although the noise is present only during cold start up and disappears once the engine coolant reaches 149 degrees F, Mazda realizes that it is an annyance to some customers and its engineers are investigating possible countermeasures in an effort to address customer satisfaction.
April-10th-2003, 09:04 AM
#5
Registered User
Join Date: Dec 2001
Location: Northern VA
Posts: 1,016
yea i have same problem with my car its liek a Psssfff sound at 3100 rmps on my car. Wil was like WTF WAS THAT. Sounds like a dieing chipmunk or some sheit. Never really noticed it til this winter. I was thinking it was a belt or something, obviously not....
Weird how its only on the SOHC.
Weird how its only on the SOHC.
April-10th-2003, 11:29 AM
#7
can i get a liter cola?
Thread Starter
Join Date: Jan 2003
Location: lakeville, mn
Posts: 233
Weird how its only on the SOHC.
April-10th-2003, 02:42 PM
#9
Got Boost?
Join Date: Feb 2002
Location: New Jersey
Posts: 209
I know the spooling sound you're talkin about. Both my 91 LX and my dads 91 LX do this. I don't know what causes it, but I can tell you that it's not from and mod you may have done because my 91 is modded and my dad's is stock but we both experiance this.
Adam
1991 Harbor Blue LX
Adam
1991 Harbor Blue LX
April-11th-2003, 02:13 AM
#11
Smoking or Non-Smoking???
Join Date: Feb 2003
Location: Philly
Posts: 731
i get a nice spooling sound (94 lx) above 4,000 rpms noticeable inside the car and about 3,200 to 3,600 noticeable outside the car, it's wierd. now if i race my engine anywhere from 3,000 to 6,000, and let go of my gas petal, you can hear a little bit of a tumbling sound... is that what you're talking about? cause to tell you the truth, a heat shield rattle could occur at idle, but especially below 2,000 or 3,000 rpms. bottom line, if it's lose, it's lose. either than that, i couldn't help you, sorry.
peace
peace
April-11th-2003, 08:31 AM
#12
Protege Newbie
Join Date: Jan 2003
Location: New Hampshire
Posts: 22
my '92 DX also does this around 3k rpm's and is most noticable in the first 3 gears. it doesn't really annoy me as much as some of the others here because some people actually think my car is turbo because of it.
April-11th-2003, 10:29 AM
#13
can i get a liter cola?
Thread Starter
Join Date: Jan 2003
Location: lakeville, mn
Posts: 233
whether i'm driving or just revving the engine, if i bring the revs over 3k, i can hear it "spool". then when the revs drop back down, there is a whistle/rattle noise. it only does it from about 5k-3k, and then nothing. never a noise below 3k. i'm glad i'm not the only one hearing this though.
