1994 Cadillac Concours Base 4dr Sedan
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A: how to tune up a 1994 cadillac concour?
Northstar engines are designed that they do not need the conventional "tune-up." They are manufactured so that spark plugs and plug wires only need replaced every 100,000 miles and the coil packs only need replaced as they malfunction. The timing on these engines also does not need to be messed with. The engine has sensors to increase or decrease timing based on the variabilites that may occur. Really, the only "tune-up" these cars need are oil changes, air filter changes and transmission fluid changes (transmission only requires new fluid every 100,000 miles). Other things you will want to keep a close eye on is the coolign system. All aluminum engines are great for power and fuel mileage, but cannot take much abuse with overheating. One case of overheating will warp the heads. Make sure to check the coolant hoses for cracks or leaks, or replace them about every 100,000 miles. It's a cheap and reliable way to ensure your engine is getting proper circulation. Also, the water pump is designed so that when it stops working, it drops fluid. This can be dangerous since the car will over heat very quickly, regardless of outside temperatures. Mine went out in the middle of January and overheated within about 30 seconds. If you need the water pump replaced take it to a mechanic that works on cooling systems. The pump housing cannot be purchased from places like Advance Auto or Napa. It comes directly from a dealer and runs about $35.00 bucks. If you replace the water pump, be smart and replace the thermostat. Hope this helps.
A: flap undercarriage left front wheel?
It's a rubber slash guard which is designed to do exactly what it says. They come from the factory with zip ties. Easy and cheap fix.
A: How often should I have an oil change?
The '94 Concours models have an "oil life indicator" which can be accessed by pressing the "information" button until you reach the indicator. It will give you a percentage of your oil life that in remaining. (i.e. 94% oil life left). The computer in this car calculates your driving habits as well as the oil temperatures and gives you the oil life percentage that you read on the dash. It is a very accurate calculator. Mine has ranged from 3,000 to about 4,000 miles between oil changes. You will have to manually reset the calculator by pressing the "information" button until you reach the indicator. Once you reach the indicator press and hold the "reset" button unil the indicator reads 100%. If you don't trust the calculator a recommended change of ever 3,000 to 4,000 miles is appropriate. Most engines are good for 5,000, but with an all aluminum engine you want to be careful. The seals on the pistons and such are less likely to fail if the oil is maintained every 3,000 to 4,000 miles.