1993 Cadillac DeVille - Page 7 - Answered Questions & Fixed issues

there are 4 bolts that hold the seat to the floor.remove the bolts first as you will have to move the power seat to get to some of the bolts.then look for and disconnect all the electrical connectors that go from the floor to the seat.then remove the seat from the car.you may have to turn the seat or get it into a position to remove it from the car for clearance.

These cars had issues with the antitheft system. When the system faults, the starter will get turned off. Normally indicated by a light on the dash that says SECURITY or ANTITHEFT. This link explains the problem.http://vatspasslockpasskeysecurityhelp.yolasite.com/

Possibly a CV joint going bad? Does it make noise while turning a corner?

Follow one of the sparkplug wires back to it. Usally GM distributors will be at the back center of the motor in front of firewall.

Could be a combo of components that are causing your poor fuel mileage. Dirty air filter is the 1st thing to check - after that.1) Oxygen sensor2) Knock sensor3) EGR valve 4) Spark Plugs/ Wires/ Ignition components5) Restricted Exhaust

Could one WHAT be overcharging the other WHAT???To understand the problem you must first understand that the car runs off of the BATTERY. The job of the alternator is to replace the power that the car uses back to the battery. The car DOES NOT operate off of the alternator (many people do not get this). The charge light comes on when the charging voltage from the alternator is lower than the voltage that is available at the battery posts (that is why the charge light is ALWAYS on when the ignition switch is on but the engine is not running. If the CHARGING SYSTEM had been PROPERLY tested, you would have seen this in the tests. If you removed your alternator to have it tested, this does not test the charging system in the car.This can be caused by a failure or high resistance in ANY PART of the charging system. This includes not only the battery and the alternator, but also all of the connecting cables, wires and the ignition switch.If the battery and alternator are both good, then the problem is most likely a loose or badly corroded battery cable. However, high resistance in the ignition switch circuit to the alternator can also cause this type of problem. The charging system in your car needs to be PROPERLY tested to pinpoint the location of the fault.

Probably not. There is enough trouble with foaming and cavitation in the power steering pumps when the CORRECT fluid is used. Why would you even ask? Power steering fluid is NOT that expensive - go buy some.

UNHOOK THE CARS BATTERY GROUND FOR 10 SECONDS THIS WILL REBOOT THE COMPUTER . IF YOU DRIVE IT AROUND FOR FIFTEEN MINUTES TRY TO GET IT OVER 30 MPH AT 1 POINT , ALL THE PERPETRATORS SHOULD BE SET, AND IT SHOULD RUN NORMALY. IF THE CODE COMES UP AGAIN, I THINK THATS THE EGR CODE. BRING IT TO YOUR LOCAL AUTO PARTS STORE AND HAVE THEM CHECK THE CODES.. THEY DO IT FOR FREE.. YOU MIGHT NEED A REPAIR PART . ASK YOUR PARTS STORE GUY HOW AND WHERE ?? RESET COMMUTER AGAIN AFTER REPAIR.. IT WILL RESET ITSELF BUT IT CAN TAKE UP TO 50 IGNITION CYCLES .. HOPE I WAS OF SOME HELP .. JAY

try the scrapyard and look at one in their ,or ask a local owner that is just parking up in a supermarket and look at theirs .lots of different ways to overcome this problem but if the pipe has beeen disconnected its because the heater matrix is no doubt leaking

E26-shorted throttle signal switchE32-open MAP sensor signalE70-Intermittent TPS signalE97-High RPM P/N to D/R Shiftsome could be history codes not currents tho maybe try to clear then drive it and see what comes back.Press off and high simultaneously to clear codesand this link may helphttp://www.cadillacforums.com/forums/ht4100-4-1-4-5-4/21558-obd-i-codes-4-x-engines.html

• 52: Backup fuel cal-pack missing
• There is a device that's called a CalPac. This allows fuel delivery if the other parts of the ECM are damaged. There is an access panel in the ECM door. Your CAL PAC needs replaced. This item has all the calibrations to regulate the fuel in the car.

• When installed you may need to have your ECM programmed.

• If you have any comments please feel free to leave them here.
• Hope this helps and thank you for using FixYa.

Regards, Tony

Scan for codes and it will tell ya which VSS vehicle speed sensor is not working, replace that and you should be fine.

Replace MAF mass air flow sensor and Catlic converter.

Check the engine timing.I'll bet that's it.If it is PLEASE vote for me!!!

Since we are limited in the amount of space we can use, I will have to give you a link to the step by step instructions.

http://www.ehow.com/how_6190439_change-filter-1993-cadillac-deville.html

remove the cover screws located at the back of the steering wheel, in the recessed holes, CAUTION: before doing anything with the steering section of your car ,, unhook the NEGITIVE battery cable first , then unhook the positive and wait 10 minutes before doing anything else,, this will allow the air bag system to discharge. when your done with your repairs, Hook it back up in the reverse order,,

i have a 1993 coupe deville thats not starting because of the alarm system. what can i do, please help me need my transportation.

Some reasons for a front end vibration could be an out of balance wheel, loose or worn wheel bearings, worn tie rod ends, worn ball joints, centre wear on steering rack, bad tires with split belts or blisters, warped brake rotors.
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Going by the age of your car I'd start with a tire roation and see what happens, next I'd go to the brake rotors.
Remove wheels, caliper brackets, and rotors.And inspect if there is gunk collected there.----- If yes then get it cleaned and realigned .------ 1. Be sure that wheels are correctly balanced, and not bent or damaged.
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2. Be sure that all steering and suspension components are in good order.
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3. Proceed to clean and smooth all hub/rotor/wheel mating surfaces, and install lug nuts in proper sequence and torque.------- The tires wearing unevenly in the front.----Check the driveshaft running to the rear of the vehicle, notorious for U-joint failure and will vibrate the vehicle front and rear, depending on which joint goes first.------- The warped rotor along with sticking caliper slides.-------- Getting this possibilities checked will help.Thanks.Helpmech.

i think what your referring to is a proportioning valve that regulates the pressure to the brake that the line goes to,this helps regulate brake pressure to all the wheels so they are the same during braking so there is no wheel lock up while the other wheels don`t lock up.this is a common place for the fluid to leak out when the car gets old enough due to environmental conditions such as winter driving,corrosion,wet weather (lots of rain),salt conditions(living near salt water),it will have to be replaced and the brake lines should be checked for condition as they may need replacing as well.

YOU OBVOUSLY HAVE ANOTHER PROBLEM,UNFORTUNATELY SOMEONE NEEDS TO CHECK IT WHEN IT DOESNT START,,,LIKE ARE YOU GETTING SPARK,OR ARE YOU GETTING PROPER FUEL PRESSURE.,,IS THE SERVICE ENGINE SOON LIGHT ON ..IF SO WHAT DOES IT SAY.ID WOULD SAY ITS TIME FOR A NEW MECHANIC.LET HIM KEEP IT FOR A DAY OR 2 AND DRIVE IT.