Question about 1998 Cadillac DeVille

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First time ever having a car and need to know wat all do i need to do a full tune up to my 1998 cadillac deville

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You will need: 8 spark plugs, a spark plug wire set, fuel filter, and air filter. Since your car has no distributor you will not need a cap and rotor.

Posted on Jan 04, 2011

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Change the oil and filter, check or replace the air filter, remove plugs and replace if necessary, look at plug wires, they may havfe a date stamped on them that say '98' or '99'-if they do, replace then, remove the distributor cap and look inside, if the terminals show any signs of oxidation, replace it and replace the rotor. Clean the throttle body with THROTTLE BODY CLEANER (do not use carb cleaner), and check all fluids-brake fluid, antifreeze, power steering fluid and transmission fluid. It is not a bad idea to replace any or all of these items, for the brake fluid and power steering tanks, you can use a clean turkey baster to drain what you can get out and refill with quality fluids, and do a service on the trans-messy, but not hard to do and well worth it since it keeps the trans cooler. You could remove the battery cables and thoroughly clean the terminals and posts, and pull the wheels and eyeball the brakes to see if the rotors are smooth and free of cracks/flaws and the pads have sufficent thickness. check air in the tires, clean the engine gently with Spray Nine and an easy flow of water, dry it off-write down all that you did including mileage and dates-all of these things will make your Caddy last.

Posted on Jan 04, 2011

  • mike mountain Jan 04, 2011

    sorry I forgot you have a 98, so no distributor or rotor-but that is all the more reason to make sure the battery connections are good, voltage readings at sensors and the engine computer (PCM, ECM, ECU) is critical.

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