1983 Cadillac Eldorado Biaritz 4.1 V8 4.1
The best car we own.
I'm not sure how many others have had this problem, but, at about 93,000 miles my engine began to backfire through the manifold and the fuel injectors. I believe this was caused by the timing being off. I'm not sure if the timing has to do with that or not because this only happens at freeway speeds of 70+. If anyone knows or might have an idea of why this might be happening please let me know so I can take care of it. I also replaced the water pump at 87,000 miles with a brand new one. The major problem I have had is at 102,000 miles I had a wreck on a highway. Luckily not much damage came to the car. The front bumper and the right fender need replacement do to the damage. If anyone knows of a good place to find replacement parts I would be very pleased to know about it.
This car is one of the smoothest riding cars I have ever seen and driven. This is the ride to have. The gas mileage isn't too bad either. Right now I am averaging about 22mpg. The comfort of this car is unbelieveable. I myself have refrained from driving at night because I have found myself getting very tired from its comfort. I did make a modification to the stereo system in the car. The old stereo and speakers were worn out and needed replacement. I now have a Sony CD player with 4 2"/4" Sony speakers in the front and rear. I also have a 760watt Pioneer 2 channel amp powering 2 10" sub woofers. This car turns heads everywhere I drive, with or without the stereo. This is the coolest car we have.
Would you buy another car from this manufacturer? Don't Know
Review Date: 15th October, 2005
22 MPG on highway you mean?
The 4.1 V8 is a notoriously bad engine. Probably the worst engine GM ever built. The problem is that the coolant leaks into the engine oil and ruins the engine. Cadillac had a recall on this engine, and the fix was to put a sealer in the coolant water, thus sealing the engine gaskets. Check your oil carefully, and you will find it rises on the dipstick. Unfortunately, the water is filling your crankcase and causing bad readings on the dip stick.
I believe it is correct that the problematic 4.1 liter V-8 in this generation of Eldorado can be replaced (without too much modification) by the Oldsmobile 307 V-8. I know that this is possible to do in rear wheel drive Cadillacs burdened with the 4.1, and that Toronados and Rivieras of the same platform as the Cadillac came as standard with the 307. Can anyone confirm or dispute this?