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Problem is, it doesn't do it everytime and is not predictable. I've tried getting our service dept to investigate, but they can't find anything wrong and have never actually experienced it (despite me driving the tech around for 15min).
I had resigned to waiting for the symptoms to get worse, so they could identify the problem. Unfortunately, or fortunately (depending on how you look at it) the problem hasn't really changed in frequency or severity.
Has anyone else experienced this? Anyone ever fix it?
Some customers may complain of excessive sulfur dioxide odor on 2003–2004
model year 4Runner (1GR–FE) vehicles under the following conditions:
�� Stop and go driving.
�� Heavy acceleration.
In order to reduce the sulfur dioxide odor, the Electronic Control Module (ECM)
(SAE term: Powertrain Control Module/PCM) fuel cut control logic has been modified and
a new catalyst is provided. Follow the repair procedure to reflash the ECM and replace
the catalytic converter assembly.
NOTE:
For more complete understanding of the root cause, refer to TSB No. EG003–03
“Sulfur Odor From Exhaust,” dated February 24, 2003.
�� 2003 – 2004 model year 4Runner vehicles equipped with the 1GR–FE engine
produced BEFORE the Production Change Effective VINs shown below.
MODEL PLANT ENGINE DRIVETRAIN PRODUCTION CHANGE EFFECTIVE VIN
Tahara
2WD JTEZU##R#40026890
4Runner
V6
4WD JTEBU##R#40032900
Hino
2WD JTEZU##R#48015332
4WD JTEBU##R#48019048
OP CODE DESCRIPTION TIME OFP T1 T2
EG4004 Recalibrate ECM (PCM) Engine 0.8 17410–31380
60 99
Combo A R & R Catalytic Converter Assembly #1 & #2 0.4
17450–31010
Applicable Warranty*:
This repair is covered under the Toyota Specified Major Emission Control Component
Warranty. This warranty is in effect for 96 months or 80,000 miles, whichever occurs
first, from the vehicle’s in-service date.
* Warranty application is limited to correction of a problem based upon a customer’s specific complaint.
ENGINE
Introduction
Applicable
Vehicles
Production
Change
Information
Warranty
Information
EXCESSIVE SULFUR DIOXIDE ODOR – EG015-04 May 27, 2004
Page 2 of 4
ORIGINAL PART NUMBER* REPAIR PART NUMBER* PART NAME QTY
17410–31380 17410–31480 Pipe Assembly, Exhaust Front 1
17450–31010 17450–31050 Pipe Assembly, Exhaust Front #2 1
* The original parts (17410–31380 and 17450–31010) are currently used in vehicle production and are still
available as service parts. The repair parts (17410–31480 and 17450–31050) should be used when the
customer complains of sulfur dioxide odor.
PREVIOUS PART NUMBER CURRENT PART NUMBER PART NAME QTY
N/A 00451–00001–LBL Authorized Modification Labels 1
NOTE:
Authorized Modification Labels may be ordered in packages of 25 from the
Materials Distribution Center (MDC) through Dealer Daily or by calling the
MDC at 1–800–622–2033.
SPECIAL SERVICE TOOLS (SSTs) PART NUMBER QUANTITY
Toyota Diagnostic Tester Kit*
01001271 1
12 Megabyte Diagnostic Tester Program Card
with version 10.2a Software (or later)* 01002593-005 1
* Essential SSTs.
NOTE:
Additional Diagnostic Tester Kits, Program Cards or other SSTs may be ordered by
calling SPX/OTC at 1-800-933-8335.
MODEL YEAR PREVIOUS CALIBRATION ID NUMBERS
NEW CALIBRATION
ID NUMBER
2003 2WD
Main 33519000
33529100
33529200
Sub 53505000 53512000
2003 4WD
Main 33520000
33530100
33530200
Sub 53506000 53513000
2004 2WD Main 33529000
33529100
33529200
2004 4WD Main 33530000
33530100
33530200
NOTE:
2003 model year 4Runner vehicles, which have been flash reprogrammed using the
procedures in this TSB, will contain upgraded 2004 model year OBD II logic. Refer to
the 2004 model year 4Runner Repair Manual information on the Technical Information
System (TIS) when checking Powertrain Diagnostic Trouble Codes (DTCs) on 2003
model year vehicles that have been reprogrammed.
Parts
Information
Required
SSTs
ECM (PCM)
Identification
Chart
EXCESSIVE SULFUR DIOXIDE ODOR – EG015-04 May 27, 2004
Page 3 of 4
1. Check for the Authorized Modification Label affixed to the vehicle in the location
shown in Figure 2 on page 4. If there is no label present, proceed to step 2.
2. Connect the Diagnostic Tester to the vehicle and select “CURRENT ECU CAL” from
the “ECU REPROGRAM MAIN MENU.” To determine the vehicle’s current ECM
(PCM) calibration, see Figure 1 shown below.
Figure 1. Determining Current ECU Calibration
ECU REPROGRAM
MAIN MENU
1: GET CAL FROM PC
2: CURRENT ECU CAL
3: UPDATE ECU CAL
4: CAL ON TESTER
5: CLEAR CAL DATA
A
CURRENT ECU CAL
B
CALIBRATION ID
33519000
53512000
Note: This Calibration ID is an
EXAMPLE ONLY. Refer to the ECM
(PCM) Identification Chart on page 2
for a full list of Calibration IDs.
3. Proceed to Flash Reprogram the ECM (PCM) by following the procedures in
TSB No. SS002–01 titled “ECU Flash Reprogramming Process,” for 2001 and later
applicable models.
NOTE:
Errors during the flash reprogramming process can PERMANENTLY DAMAGE the
vehicle’s ECM (PCM). In order to minimize this risk follow the steps below:
�� Make sure that the current battery voltage is no less than 11.4 volts.
�� Install a battery charger and set on a low setting to assure that the battery voltage
DOES NOT FALL BELOW 11.4 VOLTS during the reprogramming.
�� If battery’s state of charge is in question, test with SST No. 00002–MP815–T,
“Midtronics Battery Tester.”
�� Confirm that the engine hood is up, parking brake is set and all accessories are OFF
(i.e., audio system, A/C, interior lights, headlights, etc).
�� DO NOT perform the reprogramming process until the engine room temperature is
158F (70C) or less.
�� Confirm cable connections between the vehicle and the Diagnostic Tester
are secured.
�� In case of Error Message “Cannot Go To Reprogram Mode,” refer to TSB
No. SS004–01 “ECU Flash Reprogramming Error Message.”
�� Do not interrupt the vehicle during the reprogramming process, keep all
doors closed.
4. Select the proper ECM (PCM) calibration file for the model year vehicle and
reprogram the ECM (PCM).
5. After completing the ECM (PCM) reprogram, the zero point calibration must be
performed. Refer to TSB No. BR001–04 “Zero Point Calibration.”
ECM
Reprogram
Procedure
EXCESSIVE SULFUR DIOXIDE ODOR – EG015-04 May 27, 2004
Page 4 of 4
6. Start the engine and warm up the vehicle to normal operating temperatures before
test–driving.
7. Test drive vehicle to confirm proper operation and to readjust the ECM (PCM)
“Learned Values.”
�� Drive the vehicle using light to moderate acceleration in mostly stop and go
type driving.
�� Allow the vehicle to shift fully through all gears and at various shifter
positions (D, 3, 2, L).
8. Enter the following information on the Authorized Modification Label shown below in
Figure 2 using a permanent marker.
�� ECM (PCM) part number.
�� New ECM (PCM) calibration number.
�� Your dealer code.
�� Reprogramming date.
�� This TSB number.
THESE MODIFICATIONS HAVE BEEN APPROVED
AS APPROPRIATE BY EPA AND CARB
DEALER CODE: DATE:
CHANGE AUTHORITY: TSB EG015–04
33529200
89661–35A30
Replacement
ECM (PCM)
Part
Number
Calibration
ID(s)
TSB Number
Date
C
Models:
’03 – ’04 4Runner (2UZ–FE)
Technical Service
BULLETIN
June 14, 2004
Some customers may complain of excessive sulfur dioxide odor on 2003–2004
model year 4Runner (2UZ–FE) vehicles under the following conditions:
�� Stop and go driving.
�� Heavy acceleration.
In order to reduce the sulfur dioxide odor, the Electronic Control Module (ECM)
(SAE term: Powertrain Control Module/PCM) fuel cut control logic has been modified and
a new catalyst is provided. Follow the repair procedure to reflash the ECM and replace
the catalytic converter assembly.
NOTE:
For more complete understanding of the root cause, refer to TSB No. EG003–03
“Sulfur Odor From Exhaust,” dated February 24, 2003.
�� 2003 – 2004 model year 4Runner vehicles equipped with the 2UZ–FE engine
produced BEFORE the Production Change Effective VINs shown below.
MODEL PLANT DRIVETRAIN PRODUCTION CHANGE EFFECTIVE VIN
Tahara
V8 2WD JTEZT##R#40016279
4Runner
V8 4WD JTEBT##R#40037525
Hino
V8 2WD JTEZT##R#48004215
V8 4WD JTEBT##R#48015016
OP CODE DESCRIPTION TIME OFP T1 T2
EG4004 Recalibrate ECM (PCM) Engine 0.8
17410 50360 60 99
Combo A R & R Catalytic Converter Assembly 0.2
17410–Applicable Warranty*:
This repair is covered under the Toyota Specified Major Emission Control Component
Warranty. This warranty is in effect for 96 months or 80,000 miles, whichever occurs
first, from the vehicle’s in-service date.
* Warranty application is limited to correction of a problem based upon a customer’s specific complaint.
ENGINE
Introduction
Applicable
Vehicles
Production
Change
Information
Warranty
Information
Sorry for the delayed response -- I just joined the Forum.
The engine tappit noise is common on almost every sequoia, when the engine is cold. Mine has done it from the first day and I now have 102,000 miles and engine is sound.
Same with the engine surge, mine does it only sometimes and I have only noticed with AC on (the engine reves higher at idle).
Disconnect the odometer, I can't believe it!!!!!!
I have an 03 with 47K miles, and have been experiencing the problem for the last few weeks. Very disappointing, esp. coupled with the oil pressure sending unit going out -- again. I'm choosing not to replace this one -- there's no guaranty that the 3rd unit would last any longer than the 2nd.
Help going crazy in Ga. and broke
Solane
Getting Some Lemon-Aid From Your Lemon Maker
Sequoia
camber: +0.25 degrees
caster: +2.75 degrees (4WD) or +3.00 degrees (2WD)
total toe: +0.08 degrees
These are within Toyota specs and come from a very knowledgeable source that works for Hunter. If this does not fix your problem, then you may indeed have an issue.
Take some comfort in knowing that the rear window thing on earlier Sequoias has been talked about and solutions are at hand.
This time I will have the service rep with me and will take it to a mall parking lot to prove that the steering is not centered. Oh and by the way did I mention that the gas gauge went to empty despite having 3/4 tank of gas!!! In my 30 years of troubleshooting electronics that indicates to me a bad sending unit in the gas tank. Has only done it once but it certainly will do it again. Just a matter of time and when. That will be a major job that the dealer will want to shy away from because it will require removal of the gas tank.
Thanks
Anyway seems we have added another member to the family and am considering an 06 Sequoia 4WD and wondering if the thumping and vib problems are still an issue in the 06's??
I have a '03 with 62K miles and this just happened this weekend while driving to the store. Called the service dept, made an appt and dropped it off this morning. They called to tell me that it's a computer issue and will cost $1,282 to fix. I also have an issue with my gas gauge dropping to empty with 1/2 tank or more,only happens once in a while, they can't figure this one out either. I'm lost.
Have you found any solutions to the VSC issue.
======================================================
There are white plastic ‘clips’ that hold the interior plastic trim in place. Each of those has a rubber gasket that sits between the clip and the tailgate. On my ‘01 Sequoia, these gaskets were rather thin and not in very good shape. I replaced them with some plumbing washers from the hardware store that were thicker and slightly larger (but not so thick and large that the clips would not hold – check this first.)
Also under the plastic trim are several metal access covers. These are held in place by a combo of clips and screws. The clips are the same design as above. The screws attach into plastic ‘receptacles’ and are therefore waterproof. The access covers have what appears to be standard weather stripping that is available in any hardware store or Home Depot. I carefully and completely cleaned off the old weather strip (which was not in good shape where water would tend to accumulate) and applied new weather strip. Then re-attach and everything is dry. Just make sure that the weather strip is tight against the access cover. Simple and inexpensive.
While you are digging around in there, make sure the drainage holes in the bottom of the tailgate (I think there are 4, if I recall) are clear of debris and that there is no additional debris in the tailgate that might clog the openings. Mine was pretty clean, so that wasn’t a problem, but it is easy to se that it could be.
Does anybody have same problem? It was okay during summer time~..???
If you find something different, please let us know! Thx.
very unsafe. we took it to the dealer and they were helpful for the most part. they put it through several test and found all numbers to be normal. the servic manager said he had an 05 4runner that has the same problem. i feel it is so unsafe that 2 weeks later the vehicle is still there and i am refusing to drive my family in it. the dealer has supplied me with a loaner. i am pursuing this with toyota and will inform you of any details.
DANGER DANGER DANGER!!! Recall Notice see below.
One of my kids had the ball joint break off while exiting the highway. Luckily, nobody was hurt, but the Sequoia was severely damaged
and has been in the shop for over 6 weeks now (I've lost count of the weeks)
Make : TOYOTA Model : SEQUOIA Year : 2002
Manufacturer : TOYOTA MOTOR NORTH AMERICA, INC.
NHTSA CAMPAIGN ID Number : 05V225000 Mfg's Report Date : MAY 06, 2005
Component: SUSPENSION:FRONT:CONTROL ARM:LOWER BALL JOINT
Potential Number Of Units Affected : 768379
Summary:
ON CERTAIN SPORT UTILITY VEHICLES, DUE TO A MANUFACTURING ISSUE IN THE FRONT SUSPENSION LOWER BALL JOINT, THERE IS A POSSIBILITY THAT THE SURFACE OF THE BALL OF THE JOINT MAY HAVE BEEN SCRATCHED. THE BALL JOINT MAY EVENTUALLY EXPERIENCE EXCESSIVE WEAR AND LOOSENESS, RESULTING IN INCREASED STEERING EFFORT.
Consequence:
THE LOWER BALL JOINT MAY SEPARATE FROM THE KNUCKLE CAUSING LOSS OF STEERING CONTROL AND A CRASH COULD OCCUR.
Remedy:
DEALERS WILL REPLACE THE FRONT SUSPENSION LOWER BALL JOINTS. THE RECALL BEGAN JULY 5, 2005. OWNERS SHOULD CONTACT TOYOTA AT 1-800-331-4331.
Notes:
TOYOTA RECALL NO. 50J. CUSTOMERS CAN ALSO CONTACT THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION’S AUTO SAFETY HOTLINE AT 1-888-327-4236.
1. no bright light indicator
2. no D indicator light
3. window in tailgate will not operate
As I read these posts, I see that all 3 of these problems seem to be prevalent in the Sequoia. I am going to try and address these issues with Toyota. I will keep everyone informed as to my progress or lack thereof.
Jerry