Question about 1991 Cadillac DeVille

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1991 seville needs key code and vat number

Need new key for 1991 Seville but need key code and vat number

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  • 9 Answers

You can get that info from dealer with last eight of vin

Posted on Jan 07, 2014

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Posted on Jan 02, 2017

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  • 341 Answers

SOURCE: NEED LOCATION OF THERMOSTAT IN

  1. Drain the coolant to a level below the thermostat housing.
  2. On some vehicles, access is easier if the front-end beauty panel and the air cleaner are removed.
  3. Remove the 2 bolts securing the thermostat housing to the intake manifold.
  4. Remove the thermostat housing.
  5. Remove the thermostat and O-ring from the housing.
0900c15280090476.jpgThermostat installation—4.6L Engine 0900c15280090477.jpgLoosen the upper radiator hose clamp at the thermostat housing 0900c15280090478.jpgRemove the upper radiator hose clamp from the thermostat housing 0900c15280090479.jpgRemove the thermostat housing retaining bolts and . . . 0900c1528009047a.jpg. . . remove the thermostat housing from the engine 0900c1528009047b.jpgSeparate the thermostat from the housing To install:
  1. Install the thermostat and new O-ring to the housing.
  2. Install the thermostat housing to the intake manifold. Tighten the thermostat housing bolts to 18 ft. lbs. (25 Nm).
  3. Refill the cooling system using a 50/50 mixture of water and ethylene glycol antifreeze.
  4. Install the air cleaner and beauty panel, if removed.
  5. Start the engine and check for coolant leaks. Allow the engine to come to normal operating temperature. Recheck for coolant leaks.

Posted on Nov 27, 2008

Testimonial: "thanks for the great detailed information-greatly appreciated"

  • 341 Answers

SOURCE: service engine soon light on a 2000 cadillac seville

The service engine soon light indicates you have a problem with the engine management system.The only way to get it to stay off is to lacate and repair whatever is not working correctly. Requires very specialized equipment. Take it to your mechanic.

Posted on Nov 28, 2008

  • 11 Answers

SOURCE: Cadillac seville sts 99 overheating

dose it have an electric fan ? if it does look to see if the fan is working hope this helps.

Posted on Dec 25, 2008

  • 1 Answer

SOURCE: 1996 cadillac seville sls codes

1996 cadillac sls. Oil light comes on and car stalls. Oil is full

Posted on Dec 29, 2008

polarcycle
  • 1392 Answers

SOURCE: 2003 Cadillac Seville Key Fob

At the dealership with a computer.

Posted on Mar 11, 2009

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I need a list of the error codes for a 91 cadillac seville can any one hepl me out plz


Here's a link for GM OBD-I codes, complete with extraction directions. Fairly awesome, if you ask me :)

http://myweb.accessus.net/~090/dtcobd1.html

Hope it helps! Good Luck!!!

May 22, 2010 | 1991 Cadillac Seville

1 Answer

87 seville wont start everything is powered, doesnt have factory key, just had one made and the security or theft light keeps comin on everything gos off when you turn the key, no sound from the starter...


Your car is equipped with the VATS security system. Cars with this system need a key with a "chip" in it to start the car. A regular key won't start the car because of the security system. A key from the dealership is needed to start any GM car with the VATS system.

Sep 23, 2009 | 1987 Cadillac Seville

2 Answers

91 seville theft system


but what orange wire their plenty

May 28, 2009 | 1991 Cadillac Seville

1 Answer

Timeing


you need a timing key and a timing light. the timing key gets inserted in the diagnostic connector a-b position if i remember correctly i would consult the manual to be sure.then hook up the light and set the timing like you would most any distributer type engine

May 11, 2009 | 1991 Cadillac Seville

1 Answer

Power steering pump 1991 Seville


Drain pump.Remove pulley off with removal tool. Remove pump from vehicle. Replace with new pump. Replace pulley with pulley tool.Add PS fluid. Videos available online to show how to do for free. Auto stores with loaner tool programs for free with deposit. Cost myself $100 to do myself compared to $400 shop wanted.

Mar 19, 2009 | 1991 Cadillac Seville

1 Answer

My 1991 cadillac seville will not start


Get a new cylinder put old key with chip in it. Find orange wire from old lock cylinder at bottom of steering column just under dash. Disconnect and connect new wire from new lock cyl. Get a copy of the old key for the old lock cylinder {no chip needed} to start car. Hide or mount new lock cylinder hidden under dash. Remove chip key to activate theft system.

Mar 13, 2009 | 1991 Cadillac Seville

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