Cadillac Repair: 1993 Cadillac Deville, Vats, theft insurance denial


Question
Replaced the starter couple of days ago and yesterday the car would not start after running fine all day. A passer by said to turn the ignition on and put the car in gear then back into park. Try to start it. It worked!! Of course every time I try to start it I go through the same thing again. What do think the problem is?

Answer
Hi Sherry,

My first question would be; why was the starter replaced in the first place?
Being that the engine ran all day may have nothing to do with your problem.
Obviously, it is impossible to diagnose a problem over the internet, but something you said struch a note.
Moving the transmission selector as well as tilting the wheel affect the wiring in the steering column.
Your car is equipped with VATS (Vehicle Anti-Theft System). This is a owner problem more thant it slows theft. The system has a resistor pellet (often referred to as computer chip-not) embedded in the key blade. There are two very small wires (similar to telephone wiring) that run down through the steering column. Because so small, they commonly break inside the steering column. If these wires break, the vehicle's computer will not see the proper resistance in the circuit from the proper ignition key. Moving steering column components puts these broken wires together again and the engine will start.
The most common complaint with this junk factory-installed system was "Engine starts at times".
Here are your options if this is the problem: Have the dealer rip you for $300 to repace the ignition lock assembly. Have the automotive locksmith replace the ignition assembly for $150.
Have the ignition lock wiring harness repaired (not worth it, because problem will happen again.)
There is another option, however, it puts you in a bad situation if your car gets stolen and you have insurance. These idiots actually believe the car is "unstealble" with this antiquated problematic system.
Have a mechanic measure the resistance of the key blade. Go to Radio shack and find a resistor value within 10%. Have the harness from the steering column cut and install the resistor in line. This lies to the computer so it sees the proper key each time.
You can also go to an auto alarm store and request a VATS bypass kit. This kit comes with every alarm capable of remote start. Have the correct resistor installed in line.
As I write this, I have a case where the insurance company hired a VATS expert that will explain the design of this system. I, on the other hand address the real issues as to the problems with this system.

If you do bypass the system, at least get a hidden starter disable. Something a thief does not have access to.
If your car is stolen and you have comprehensive insurance, I can almost guranty they will deny your claim and even go farther sometimes by habving you charged criminally. Does this happen? All the time!

The VATS problem is very common and is most likely the problem with your car.

Good Luck

Rob