GROUP

MODEL

ENG

2020-2023MY
Forte (BDm)
w/1.6L T-GDI
6-Speed M/T

NUMBER

DATE

243

June 2023

TECHNICAL SERVICE BULLETIN
SUBJECT:

LOOSE CRANKSHAFT PULLEY PARTIAL REPAIR

This bulletin provides information regarding a loose crankshaft pulley condition on certain 2020-2023MY
Forte (BDm) vehicles equipped with a 1.6L T-GDI and 6-speed manual transmission, produced from May 15,
2019 through present, where excessive engine loads may cause the crankshaft pulley bolt to back out, causing
the crankshaft pulley to come loose. If this condition occurs, a loose crankshaft pulley may cause the alignment
dowel pin to shear and the crankshaft pulley to separate from the crankshaft. Follow the procedure outlined
in this publication to replace the crankshaft pulley, bolt, and alignment dowel pin.

A printed copy is for reference only; publication information can be updated at any time.
Always refer to KGIS for the latest information. After logging in kdealer.com, the newest technical
publications are listed in ‘Service Releases’ and has the latest service information that has been released.

Page 2 of 8

LOOSE CRANKSHAFT PULLEY PARTIAL REPAIR

SUBJECT:

Flowchart:

Vehicle In
with confirmed loose/
detached crankshaft pulley.

Is crankshaft
end damaged?
(Pg.3)

TSB Not Applicable
(TSB repair outlined cannot
be performed/claimed)

Yes

No

TSB repair is required to
complete diagnosis.

If NG, TSB/Repair Op Code
can be claimed.

Perform TSB repair:
Replace crankshaft pulley,
bolt, and alignment
dowel pin.
(Pg. 4)

Perform rotational
torque test
(Refer to Pg. 6)

NG

OK

If NG, TSB/Repair Op Code
can be claimed.

Perform compression test.
(Refer to Pg. 7)

NG

PWA Process
(DSA-B Dealers MUST
create a TL PWA case
for engine approval)

OK

Vehicle out

 NOTICE
If crankshaft end damage is present, follow the flowchart above and open a PWA Techline case for
engine replacement. In some cases, it is necessary to repair the vehicle as outlined in this TSB to
determine if engine repair is required. Engine replacement is not covered under this TSB. Be

prepared to provide photo(s) and video to Techline for PWA process in the event it is required.
To ensure customer satisfaction and warranty coverage, always remember to refer to KDealer+
Warranty Coverage (validation) Inquiry Screen (Service → Warranty Coverage → Warranty
Coverage Inquiry) to confirm powertrain warranty coverage eligibility.
Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information.

TSB: ENG243 Forte (BDm) June 2023

Page 3 of 8

LOOSE CRANKSHAFT PULLEY PARTIAL REPAIR

SUBJECT:

Inspection Procedure:
1.

Remove the right front wheel (A).
Note: If the vehicle is in with a loose crankshaft
pulley, it is possible that the drive belt came off.
If the crankshaft pulley and belt are still
attached, follow the steps below. Otherwise,
skip to 4.

A
+

2.

If applicable: Remove the drive belt (B) by
referring to “Maintenance → Powertrain →
Drive Belt → Repair procedures” in the
applicable Shop Manual on KGIS.

B
+

3.

If applicable: Remove crankshaft bolt (C) to
remove the crankshaft pulley (D).

C

Tightening torque for Crankshaft Bolt (B):
34.0 – 38.3 lb.ft (46.1 – 52.0 N.m) + 53°

D

Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information.

TSB: ENG243 Forte (BDm) June 2023

Page 4 of 8

LOOSE CRANKSHAFT PULLEY PARTIAL REPAIR

SUBJECT:

4.

Inspect the crankshaft end for damage (where
the pulley and/or dowel pin cannot not be
reinstalled:
•

If crankshaft end is not damaged (OK),
proceed to the ‘Repair Procedure’ on
page 4.

•

If crankshaft end is damaged (NG), then
the engine will require to be replaced.
No damage to crankshaft end.

DSA-B Dealers: MUST create a Techline
case (PWA) and include photos/video of
the damage.

Damaged crankshaft end (dowel pin hole).

Damaged crankshaft end.

Repair Procedure: (Dowel Pin)
1.

Inspect the dowel alignment pin (E).
•

If dowel pin has not sheered off (OK),

E

remove dowel pin and proceed to
‘Installation Procedure’.
•

If dowel pin has sheered off (NG),
proceed to step 2-3. The continue to
‘Installation Procedure’ on page 5.

2.

Carefully drill a hole into the dowel pin, using a
drill bit smaller than the dowel pin diameter.

3.

Using a bolt extractor, carefully remove the
broken dowel pin.

Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information.

TSB: ENG243 Forte (BDm) June 2023

Page 5 of 8

LOOSE CRANKSHAFT PULLEY PARTIAL REPAIR

SUBJECT:

Installation Procedure: (Crank Pulley)
1.

Remove the engine room under cover (A).

A
+

2.

Remove the starter (B) by referring to “Engine
Mechanical System → Starting System →
Starter → Repair procedures” in the applicable
Shop Manual on KGIS.

B
+
3.

Install the SST ring gear stopper/adapter to the
flywheel (C), as shown.
•

SST 09231 3N100

•

SST 09321 2B100

TECH TIP
SST 09231 3N100 and 09321 2B100
align with the flywheel teeth to
ensure the flywheel does not move

when torquing the crankshaft bolt.

C
+

Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information.

TSB: ENG243 Forte (BDm) June 2023

Page 6 of 8

LOOSE CRANKSHAFT PULLEY PARTIAL REPAIR

SUBJECT:

4.

Insert the new dowel pin (D) on the crankshaft
end.

D

5.

Install the new crankshaft pulley (E).

6.

Install the new crankshaft bolt (F).

F

E

7.

Reinstall all other removed parts in reverse
order.

8.

Perform engine rotational torque inspection
using a torque wrench and set it to 94 ft. lb.
•

If engine rotational torque is less than
94 ft. lb., (OK) proceed to step 9 to
perform a compression test.

•

If engine rotational torque is greater
than 94 ft. lb., (NG), then the engine will
require to be replaced. DSA-B Dealers:
MUST create a Techline case (PWA) and
include photos/video of the damage.

Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information.

TSB: ENG243 Forte (BDm) June 2023

Page 7 of 8

LOOSE CRANKSHAFT PULLEY PARTIAL REPAIR

SUBJECT:

9.

Perform a compression test by referring to
“Engine Mechanical System → Compression
Test” in the applicable Shop Manual on KGIS.
•

If compression test results are within
specification (OK), proceed to step 10.

•

If compression test results are not
within specification (NG), then the
engine will require to be replaced. DSAB Dealers: MUST create a Techline case
(PWA) and include photos/video of the
damage.

Note:

Reference

VID052

Tech

Toolbox:

Compression Test and TB018 Technician
Basics: Cylinder Compression Test.

10.

Reinstall all removed parts in reverse order.

11.

Confirm normal vehicle operation.

Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information.

TSB: ENG243 Forte (BDm) June 2023

Page 8 of 8

LOOSE CRANKSHAFT PULLEY PARTIAL REPAIR

SUBJECT:

AFFECTED VEHICLE RANGE:
Model

Production Date Range

Forte (BD/BDm)

May 15, 2019 to Present

REQUIRED TOOL:
Tool Part Number

Tool Name

Figure

Comments

Torque wrench
Torque Angle Meter

N/A

Locally Sourced

Extractor
Ring Gear

09231 3N100

Stopper Adapter
Ring Gear Stopper

For removal of
Damper Pulley

09231 2B100

REQUIRED PART:
Part Name

Part Number

Damper Pulley

23123 2B720

Crankshaft Bolt

23127 2B700

Dowel Pin

23128 2B000

Figure

Qty.

1

WARRANTY INFORMATION:
N Code: I3T C Code: ZZ3
Claim
Type

Causal P/N

Qty.

Repair

Labor Op

Op

Replacement

Description

Code

Time

P/N

Crankshaft Pulley +
W

23123 2B720

1

Crankshaft Bolt +
Dowel Pin Replacement

23123F03

2.6
M/H

Qty.

23127 2B700
and

1

23128 2B000

To ensure customer satisfaction and warranty coverage, always remember to refer to KDealer+ Warranty
Coverage (validation) Inquiry Screen (Service → Warranty Coverage → Warranty Coverage Inquiry) to confirm
powertrain warranty coverage eligibility.

Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information.

TSB: ENG243 Forte (BDm) June 2023