Fleetwood FWD V8-273 4.5L (1988)
Technical Service Bulletin # 91179
Date: 910101
Outline
Bulletin No.
T-91-17
File in Group
9
Number
74
Corp. Ref. No.
019602
Date
Jan. 1991
SUBJECT:
RADIO NOISE
MODELS AFFECTED:
1985-1991 DE VILLES, FLEETWOODS, ELDORADOS, SEVILLES 1985-1989 BROUGHAMS
This bulletin outlines diagnosis and repair procedures for various radio noises experienced on 1985-1991 DeVilles, Fleetwoods, Eldorados, and Sevilles
and 1985-1989 Broughams.
Radio noises can often be categorized by describing the sound heard or the circumstances under which they occur. The trouble trees in this bulletin are
broken down by types of noises or where they occur. Noises that do not clearly fall into a noise category should be diagnosed using the "Noise
Diagnosis" trouble tree, chart 1. The "Noise Diagnosis" trouble tree is designed to lead to the other trouble trees, if appropriate, or lead directly to the
repair.
To begin diagnosis refer to the appropriate trouble tree chart below:
Noise Diagnosis........................
Chart 1
Switch Pops.............................
Chart 2
Whines....................................
Chart 3
Ignition Noise..........................
Chart 4
Poor Reception/Static................
Chart 5
Non-Bose Speakers Noisy..........
Chart 6
Bose Speakers Noisy.................
Chart 7
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