1995-1998 Saturn S-Series vehicles built up at and including VIN XZ319158 -- 1998 vehicles built after VIN XZ319158 had the ground strap installed during production.
Customers may comment that while listening to certain AM radio stations, they hear ignition related noise. The radio noise follows engine RPM.
During normal engine operation, ignition components in the engine compartment emit certain electrical noise. Depending on the location of the vehicle antenna mast, these electrical noises may enter the radio through the antenna system. These noises may then be interpreted by the radio as radio signals and be amplified in the form of noise. Typically, the only AM radio stations that are affected are fringe stations. Fringe stations are stations that are beyond their intended usable range.
The range for most AM stations is greater
than for FM stations, especially at night. The longer range, however, can cause stations
to pick up noise from things like ignition components, storms, and power lines.Important
Attach a ground strap from the upper engine mount to the right side strut attachment stud.
When removing the engine mount-to-front cover
nut, use a 7 mm wrench on top of the stud to prevent the stud from rotating.Important
Do not over apply thread locker or allow
it to accumulate in the bottom of the hole. The front cover could be damaged when
the stud is installed.Notice
If reinstalling a previously installed stud,
the threads must be thoroughly cleaned before applying Loctite 242™ P/N 21485277,
or equivalent. If installing a new stud, the stud may or may not have a pre-applied
threadlocker. The front cover hole must be thoroughly cleaned using a 10 mm
x 1.5 mm tap to clean the treads and compressed air to remove particles from
the stud hole.Important
Tighten the stud to 25 N·m (18 lb ft).
Tighten the nut to 50 N·m (37 lb ft).
Use a new nut P/N21012387 to service all
years, 1995-1999. The new nut has a lower profile which allows for additional
free tread above the nut.Important
Tighten the nut to 29 N·m (21 lb ft).
Part Number | Description |
---|---|
21025099 | Wire Asm -- Eng Grd |
21006320 | Nut -- Torque Prevailing |
21012387 | Nut -- Strut Mount |
21485277 | Threadlocker -- Locktite 242™ |
Claim Information: | To receive credit for this repair during the warranty coverage period, submit a claim through the Saturn Dealer System as Follows: | |||
---|---|---|---|---|
-- | Case Type | Description | Labor Operation Code | Time |
-- | VW | Install Ground Strap Between Upper Engine Mount Stud and Right Front Strut Tower Stud | Z4006 | 0.2 hrs |
If Threadlocker is billed to the customer
service order (CSO), the part amount may not exceed $1.15 -- includes 30% markup. |
GM bulletins are intended for use by professional technicians,
NOT a "do-it-yourselfer". They are written to inform these
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 your GM dealer for information on whether
your vehicle may benefit from the information. |
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