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common problem was with cylinder heads, and gaskets. Initial results, were overheating, missing, mixing of coolant and engine oil will look like mayonnaise. Good way to see early indicators is to remove the oil filler cap and inspect. If its white and creamy, get ready for major repairs

I have two 4.1s. one is in an 83 coupe and the other in an 85. If you keep the oil clean and don't over heat the engine you are find. The 83 took me to Las Vegas from

Wisconsin on three occassion with plenty of power and average 25 miles per gallon. The 83 coupe is past 200,000 and the 85 is just broke in at 116,000. I have a 97 cadi

with the 4.6 northstar and would gladly trade for an older cadi with the 4.1.

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11y ago
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Q: What is the problem with the Cadillac 4.1 liter engine for 1983?
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