Cadillac Repair/restoration

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Question
My father gave me his 89 cadillac sedan deville that he bought off the carlot. It's been sitting up for 5 years outside on a inclined hill. The tires are flat and the bolts to the hub caps are rusted to where i can't get them off with the key. I asked a mechanic i know and he said I should start by dropping the gas tank. My question is where should i start on restoring this once before beauty back to complete standards. Any suggestions will be highly appreciated. Thanx BIG ROB!!!!!!!

Answer
Hello,

You could be looking at a lot of work. Gas tank has to come out and be boiled out possibly at a radiator shop. Probaly would not hurt to put a new fuel pump in at the same time. Change the fuel filter. Under the hood purchase a new plastic fuel line at the manifold. It connects the steel line from the tank to the injector manifold. The plastic is notorious for getting brittle over age and fracturing.

Before connecting filter under car near tank, from under the hood, blow air through the line. Hopefully fuel injectors are not varnished up.

If gasloine sits for months muchless years, if stable is not added to the gas it breaks down coating everything and will not burn properly. EPA has made it so gasoline breaks down much quicker than it used to.


Next, you should check each wheel with jacking up one at a time that they rotate freely. The brake fluid should be flushed. The oil should be changed and the radiator must be flushed.

You may want to change the differential fluid.

The transmission should be flushed. If there is no dipstick transmission is closed system and has to be done at any GM dealer.

Change battery.

Also make sure that a squirrel or mouse did not move into engine compartment.

It will cost some money to do this, but once done, you should have a car you can drive trouble free for a long time.

If this answer assisted you please rate it.

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Rob Painter

Expertise

Alarm system questions cannot be answered on this forum. These systems are not what I can answer. Without being physically at the vehicle and not knowing what kind of electrical service has been done on the vehicle, there is no possible way to give an accurate answer over the internet. My expertise is in Ignition/key based anti-theft systems. These issues include GM VATS (resistor chip in key blade) PASSLOCK (MRD)-ignition lock rotation based, no special ignition key and the PKIII Transponder (computer chip in key) systems. These systems are not alarm based and are integral with the starting of the engine. This is why I cannot diagnose alarm problems without physically looking at the vehicle: Alarm systems are a completely different annimal than ignition key/lock based anti-theft system. Many alarm questions come from vehicles 10 years old, and since older, many hands that had been involved over the years.I am an expert in all GM factory (ignition/key based)systems. Alarm system questions pose to many situations beyond my knowledge as to what has been done to the vehicle over the years. Some guy may have actually wired the stereo into the alarm system. Who knows? Over my past 30 years in vehicle wiring repair, I have seen unbelievable wiring disaters done by guys that consider themselves "mechanics." I have seen stereos and alarms intalled using surgical tape. I have seen modules burn up, un-fused circuits, wiring jambed between the doors and even lamp cord used for a starter kill. To answer alarm questions over the internet without examining the vehicle is like asking; What does it take to remove a dent?

Experience

Education/Credentials-ASE certified. 11 years with a GM dealer and 17 years with a repair facility dealing with only the repair of theft recovered vehicles.

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