SERVICE MANUAL UPDATE - W41 OPTION INFORMATION
SUBJECT: SERVICE MANUAL UPDATE - W41 OPTION INFORMATION
VEHICLES AFFECTED: 1993 "N" MODELS WITH 2.3L ENGINE (VIN A, RPO LGO)
This is a service manual update to Sections 3, 3A, 3B, 3C, 3D, 5-5F, 6A7, 6D3, 6F and 8C.
W41 OPTION INFORMATION
Section 3:
o New 14 x 6.5" aluminum wheel.
o New 215/60 VR 14" high speed rated tires.
o Trim height will not be affected.
Section 3A:
o Alignment specifications: will not change.
Section 3B:
o Restrictive power steering gear: limits the steering gear lock to lock travel. Service will not be impacted.
Section 3C:
o Coil spring rates: the coil spring rate will be increased from 20 N/mm to 24 N/mm. Service will not be impacted.
o Front stabilizer shaft has increased in diameter from 21.5mm to 30mm. Service will not be impacted.
Section 3D:
o Twin rear stabilizer shaft: addition of a twin stabilizer over the base suspension, or an additional lower stabilizer shaft over the FE3 suspension.
Stabilizer Shaft - Lower (See Figure 1)
Remove or disconnect -
1. Raise vehicle and support body with jack stands. Refer to Section OA.
2. Insulator nuts and isolator clamps.
3. Lower stabilizer shaft.
Install or connect -
1. Lower stabilizer shaft.
2. Insulator nuts and isolator clamps.
o Tighten insulator nuts to 22 N.m (16 lbs. ft.).
o Tighten isolator clamps to 3.75 N.m (33 lbs. in.).
3. Lower vehicle.
Stabilizer Shaft - Upper (See Figure 1)
Remove or disconnect -
1. Raise vehicle and support body with jack stands. Refer to Section OA.
2. Lower stabilizer shaft. Refer to "Stabilizer
3. Shaft - Lower", in this section.
4. Nuts and bolts.
5. Upper stabilizer shaft.
Install or connect -
1. Upper stabilizer shaft.
2. Nuts and bolts.
3. Tighten nuts to 22 N. m (161 bs. ft.).
4. Lower stabilizer shaft. Refer to "Stabilizer
5. Shaft - Lower", in this section.
6. Lower vehicle.
Section 5-5F
o Brake system, hose and cable routing: will not change.
Section 6A7
o The W41 camshaft has a different profile than the standard 2.3L camshaft. There is no affect on service procedures.
Section 6D3
o Improved durability generator. There is no affection service procedures.
Section 6F
o Low back pressure exhaust. All changes are internal. Service will not be affected.
Section 8C
o The 140 mph speedometer and extended redline tachometer will not affect service.
General Motors bulletins are intended for use by professional technicians, not a "do-it-yourselfer". They are written to inform those technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions and know-how to do a job properly and safely. If a condition is described, do not assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See a General Motors dealer servicing your brand of General Motors vehicle for information on whether your vehicle may benefit from the information.
