Engine

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01-004/03 2001-2003 PROTEGE/PROTEGE5 - RATTLING NOISE AT 1000-3000 RPM COLD ENGINE
APPLICABLE MODEL(S)/VINS
2001-2003 Protege (2.0L FS only)

2002-2003 Protege5

DESCRIPTION
Some customers may experience an engine rattle noise under light to moderate acceleration with engine coolant temperatures below 65 C (149 F) and engine RPMs between 1000 and 2900 RPM.

The noise is the result of the intentional swirl effect that is generated when the Variable Tumble Control System (VTCS) plates in the intake manifold are closed. Swirl accelerates the burn of the air/fuel mixture which reduces emissions when the engine is cold. The noise does not have a negative effect on the engine, and disappears as soon as coolant temperature reaches 65 C (149 F). There is a counter-measure to help reduce the noise in order to improve customer satisfaction.

Customers having this concern should have their vehicle repaired using one of the following procedures:

REPAIR PROCEDURE
Verify customer concern.

Check vehicle VIN range:

From VIN JM1BJ2***1*400001 to JM1BJ2***2*551281, go to step 3.

From VIN JM1BJ2***2*551282 to JM1BJ2***3*644493, go to step 4.

Replace the VTCS delay valve, then proceed to step 4.

Reprogram the PCM using WDS (Version B22 or later), verify the correct calibration from the table below:

Year/Tranmssion

File Name

New Calibration P/N


2001 MTX

DXAGBT0

1L2U-AA


2001 ATX

DXAGAS0

1L2U-BA


2002 MTX

QKMABB0

2ALU-EA


2002 MTX

QKMABB0

2ALU-EA


2002 ATX

QKAABA0

2ALU-FA


2002 ATX

QKAABA0

2ALU-FA


2002 ATX

QKBA7A0

2ALU-GA


2003 MTX

QOAMCB0

3ALU-JB


2003 ATX

QOAADA0

3ALU-KB


2003 ATX

QOAB8C0

3ALU-LB




Install revised PCM calibration sticker (9999-95-AMDC 97 available through MStore) in appropriate position (next to vehicle emissions label) with the calibration P/N provided in the table above.

Verify repair.

PART(S) INFORMATION

Part Number

Description

Qty.

Notes


N23613980A

Delay Valve

1

Application:

All 2001 Model Year

&

2002 model year built on and before November 5, 2001



WARRANTY INFORMATION
NOTE: This information applies to verified customer complaints on vehicles covered under normal warranty. Refer to the SRT microfiche for warranty term information.


Delay Valve Replacement and PCM Reprogram
Warranty Type

A


Symptom Code

82


Damage Code

9W


Part Number Main Cause

N236 13 980A


Quantity

1


Operation Number / Labor Hours:

XX444XR1 / 0.8



PCM Reprogram
Warranty Type

A


Symptom Code

82


Damage Code

9W


Part Number Main Cause

****18881


Quantity

0


Operation Number / Labor Hours:

XX444XR2 / 0.8




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faq updated

 

Since your allready on it i wont post anymore tsbs didnt know you had a whole webpage full of em =)
I think ill just look at your site in stead of ESI its easier to look at

 

 

Funny how people moaned and bitched about this problem on the boards for months and months, yet when there's finally a fix nobody seems to care. Anyway, thanks for the info. Much appreciated!

 

I have the fix, it helped a little bit, but the noise is still almost as loud and almost as annoying. So basically it didn't work and my car was in the shop 3 or 4 different times to get that result. I'm moving to the school of thought that says unplug the damn thing. That is the only way I guess I will find any peace.

 

my solution:

1) turn on the car.
2) Turn on the music
3) let the car idle for at least 30sec-1min (YOU SHOULD ALWAYS DO THIS ANYWAYS)
4) drive to wherever you need to go and make sure to keep rpms under 3k untill the temperature needle stops rising.
5) after needle stops, ZOOM-ZOOM

noise? what noise?

 

If you unplug it, you WILL get a CEL. I'm going to permanently fix mine and get rid of that damn rattle to boot.

 

I have an appointment friday to have this and the clutch chatter fixed.

 

Get ready for a big surprise when they "fix" it.

 

He might have meant that he would unplug the vacuum diaphram that activates the VTCS plates. I've been running like this forever now with no check engine light.

But if you unplug the electrical connector on the solenoid which activates the vacuum diaphram...hello CEL.

Good to see you back Traveler, I'm drooling over those headers of yours.

 

I'm taking mine in Saturday. Does anyone have any good news concerning this. So far, it's not sounding too good...

 

Ditto. It works without issue. TSB my ***..... (no offense chevywolf2, good find.) I'm in no real need of it though.

 

Ive been trying to update my P5's PCM for 2 days now upgraded the WDS 3 times and unable to upgrade to this new calibration. Called tech line they talked to the mazda engineers who said that the Calibration files to update the PCM will not be available for a week or 2 DOH!
I spent over an hour trying to figure out what the hell was up when the WDS told me my pcm was up to date with an old calibration #
So anyway if you guys want to get it updated id wait till i post the damn things avaliable =)

 

Ooh, guess I'll cancel my appointment for Saturday then. Please do post when it's available, that would be great.