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  1. Lower thermostat housing. HT4100

    RWD 19xx-1984 DeVille and Fleetwood,1985-1996 Flee
    Mine to
  2. 4.1 V8 motor oil leak

    HT4100 4.1, 4.5, 4.9
  3. 4.1 V8 motor oil leak

    HT4100 4.1, 4.5, 4.9
    Hey what's up my peeps I'm new to this forum and wanted to share my ride with you guys I currently own a 1983 Cadillac Fleetwood Brougham d'elegance coupe package With 40,000 0G miles 1983 Fleetwood Brougham It has the HT4100 V8 engine and its leaking lots of motor oil I have change the valve...
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