RADIO NOISE SUPPRESSION COMPONENTS
DESCRIPTION
Radio Frequency Interference (RFI) and ElectroMagnetic Interference (EMI) noise suppression is accomplished primarily through circuitry internal to the radio receivers. These internal suppression devices are only serviced as part of the radio receiver.
External suppression devices that are used on this vehicle to control RFI or EMI noise include the following:
- Radio antenna base ground
- Radio receiver chassis ground wire
- Engine-to-body ground strap
- Resistor-type spark plugs
- Radio suppression-type secondary ignition wiring.
REMOVAL
ENGINE-TO-BODY GROUND STRAP
WARNING: On vehicles equipped with airbags, disable the airbag system before attempting any steering wheel, steering column, or instrument panel component diagnosis or service. Disconnect and isolate the battery negative (ground) cable, then wait two minutes for the airbag system capacitor to discharge before performing further diagnosis or service. This is the only sure way to disable the airbag system. Failure to take the proper precautions could result in accidental airbag deployment and possible personal injury.
1. Remove the screw that secures the engine-to-body ground strap eyelet to the hood panel center reinforcement.
2. Remove the screw that secures the engine-to-body ground strap eyelet to the dash panel.
3. Remove the nut that secures the engine-to-body ground strap eyelet to the stud on the left upper rear corner of the engine cylinder head.
4. Remove the engine-to-body ground strap eyelet from the stud on the left upper rear corner of the engine cylinder head.
5. Remove the engine-to-body ground strap from the engine compartment.
INSTALLATION
ENGINE-TO-BODY GROUND STRAP
1. Position the engine-to-body ground strap in the engine compartment.
2. Position the engine-to-body ground strap eyelet over the stud on the left upper rear corner of the engine cylinder head.
3. Install and tighten the nut that secures the engine-to-body ground strap eyelet to the stud on the left upper rear corner of the engine cylinder head. Tighten the nut to 5.6 N·m (50 in. lbs.).
4. Install and tighten the screw that secures the engine-to-body ground strap eyelet to the dash panel. Tighten the screw to 48.5 N·m (430 in. lbs.).
5. Install and tighten the screw that secures the engine-to-body ground strap eyelet to the hood panel center reinforcement. Tighten the screw to 1.9 N·m (17 in. lbs.).