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  1. 1991 Seville SES light comes on every 10-25 miles

    Cadillac Seville / Cadillac Eldorado Forum
    Hello everyone I got a clean 1991 Cadillac Seville with about 115,000 miles the engine. Had a recent tune up and lots off work done so now it runs like a champ. However whenever I drive it it tends to run hot like 228-230 degrees despite Changing our the water pump and thermostat and coolant...