Nissan 350Z Workshop Manual 2003 (40) PDF | Page 8

SE-8
SQUEAK AND RATTLE TROUBLE DIAGNOSES
TRUNK
Trunk noises are often caused by a loose jack or loose items put into the trunk by the owner.
In addition look for:
1. Trunk lid dumpers out of adjustment
2. Trunk lid striker out of adjustment
3. Trunk lid torsion bars knocking together
4. A loose license plate or bracket
Most of these incidents can be repaired by adjusting, securing or insulating the item(s) or component(s) caus-
ing the noise.
SUNROOF/HEADLINER
Noises in the sunroof/headliner area can often be traced to one of the following:
1. Sunroof lid, rail, linkage or seals making a rattle or light knocking noise
2. Sunvisor shaft shaking in the holder
3. Front or rear windshield touching headliner and squeaking
Again, pressing on the components to stop the noise while duplicating the conditions can isolate most of these
incidents. Repairs usually consist of insulating with felt cloth tape.
SEATS
When isolating seat noise it's important to note the position the seat is in and the load placed on the seat when
the noise is present. These conditions should be duplicated when verifying and isolating the cause of the
noise.
Cause of seat noise include:
1. Headrest rods and holder
2. A squeak between the seat pad cushion and frame
3. Seat back lock and bracket
These noises can be isolated by moving or pressing on the suspected components while duplicating the con-
ditions under which the noise occurs. Most of these incidents can be repaired by repositioning the component
or applying urethane tape to the contact area.
UNDERHOOD
Some interior noise may be caused by components under the hood or on the engine wall. The noise is then
transmitted into the passenger compartment.
Causes of transmitted underhood noise include:
1. Any component mounted to the engine wall
2. Components that pass through the engine wall
3. Engine wall mounts and connectors
4. Loose radiator mounting pins
5. Hood bumpers out of adjustment
6. Hood striker out of adjustment
These noise can be difficult to isolate since they cannot be reached from the interior of the vehicle. The best
method is to secure, move or insulate one component at a time and test drive the vehicle. Also, engine RPM
or load can be changed to isolate the noise. Repairs can usually be made by moving, adjusting securing, or
insulating the component causing the noise.

Nissan 350Z Workshop Manual 2003 (40) Summary of Content

SE-8SQUEAK AND RATTLE TROUBLE DIAGNOSESTRUNKTrunk noises are often caused by a loose jack or loose items put into the trunk by the owner.In addition look for:1. Trunk lid dumpers out of adjustment2. Trunk lid striker out of adjustment3. Trunk lid torsion bars knocking together4. A loose license plate or bracketMost of these incidents can be repaired by adjusting, securing or insulating the item(s) or component(s) caus-ing the noise.SUNROOF/HEADLINERNoises in the sunroof/headliner area can often be traced to one of the following:1. Sunroof lid, rail, linkage or seals making a rattle or light knocking noise2. Sunvisor shaft shaking in the holder3. Front or rear windshield touching headliner and squeakingAgain, pressing on the components to stop the noise while duplicating the conditions can isolate most of theseincidents. Repairs usually consist of insulating with felt cloth tape.SEATSWhen isolating seat noise it's important to note the position the seat is in and the load placed on the seat whenthe noise is present. These conditions should be duplicated when verifying and isolating the cause of thenoise.Cause of seat noise include:1. Headrest rods and holder2. A squeak between the seat pad cushion and frame3. Seat back lock and bracketThese noises can be isolated by moving or pressing on the suspected components while duplicating the con-ditions under which the noise occurs. Most of these incidents can be repaired by repositioning the componentor applying urethane tape to the contact area.UNDERHOODSome interior noise may be caused by components under the hood or on the engine wall. The noise is thentransmitted into the passenger compartment.Causes of transmitted underhood noise include:1. Any component mounted to the engine wall2. Components that pass through the engine wall3. Engine wall mounts and connectors4. Loose radiator mounting pins5. Hood bumpers out of adjustment6. Hood striker out of adjustmentThese noise can be difficult to isolate since they cannot be reached from the interior of the vehicle. The bestmethod is to secure, move or insulate one component at a time and test drive the vehicle. Also, engine RPMor load can be changed to isolate the noise. Repairs can usually be made by moving, adjusting securing, orinsulating the component causing the noise.