2010 Cadillac DTS - Page 5 - Answered Questions & Fixed issues

Most likely spark plugs and wires. Coils usually kill two cylinders at the same time. Use only ac delco parts. trust me, it is something you don't want again soon.

It sounds like you have a key tumbler issue. Try spraying some WD-40 into the cylinder then blow it out with canned air, it should free up the tumblers for you.
Good luck, let me know.
Regards.

should have pic of pattern on hood or rad support if not all groved wheels inside of belt and all smooth wheels outside belt usually when almost done u should only use tensionor to finish putting on belt at the alternator worst comes to worst go to used car dealer n fake looking at car like yours and get pattern

I had a very similar problem with the same car, it turned out to be a bad battery connection. Very simple solution, I guess I was lucky. I hope this helps and sorry for the late post. If you would consider selling it please write me at reitee at hotmail.com
Good luck.

Sometimes you can flip the switch up and down very rapidly and it will clean the contacts. May have gotten wet at some time. Ive used this trick several times, especially GM products. Use your thumb and move it very quickly and with a little force.

HI...
The battery on your cadillac if is 2000 and up..
Is located UNDER THE REAR PASSANGER SEAT.

I hope this help on your question.
Thank you for use fixya.

This is some help here https://www.google.com/search?q=1961+Cadillac+Fleetwood+390c+vacuum+line+diagram ..

Are you sure the engine is not grounded? Could be the starter relay. To make sure it is not a ground problem use a battery jumper cable and connect the engine to the negative battery post. Also make sure the battery did not lose its charge while working on the belt. Possible key left on.

2000 Cadillac Escalade Stereo Wiring
Constant 12V+ Orange
Switched 12V+ Yellow
Ground Black
Illumination Gray
Dimmer Brown
Antenna Right Front
Front Speakers 6 1/2" Doors
Left Front (+) Tan
Left Front (-) Gray
Right Front (+) Light Green
Right Front (-) Dark Green
Rear Speakers 6 1/2" Rear Doors
Left Rear (+) Brown
Left Rear (-) Yellow
Right Rear (+) Dark Blue
Right Rear (-) Light Blue

question edited for clarity and typo. https://www.google.com/search?q=1984+cadillac+seville+fuel+pump+wiring+diagram Service Manual https://www.google.com/search?q=1984+cadillac+seville+service+manual ..

Is it stuck in the engine "off" position? 1.) Check your car battery. If it's very low or dead, it may be preventing the ignition from unlocking. If it's low or dead, charge it and try again. 2.) If the battery checks out okay, press firmly on the "S" button (sport mode) next to the gear shifter. Surprisingly, that somehow solves the issue sometimes. 3.) If that doesn't work, there may be a problem with the ECM. But try the two steps above first as needed, and if that doesn't work, feel free to post back.

Question edited for clarity and correct spelling of the model.

Horn button removal - Enthusiast forums for Cadillac Owners

cadillacforum.com https://www.cadillacforum.com > forum > horn-button-r... Jul 6, 2021 - Cadillac PininFarina Allante - Horn button removal - I have a 1989 Allante ... The first step is to remove the horn button on the steering wheel.

Steering Wheel Removal

Cadillac Owners Forum https://www.cadillacforums.com > threads > steering-w... Jan 2, 2007 - Make sure your wheels are straight. Behind the horn pad should be some screws(2). Take them out. The horn pad should lift up, watch out for the ... Steering wheel ' Cadillac Owners Forum Jun 18, 2020 telescopic steering wheel removal? - Cadillac Owners Forum Jan 8, 2013 instructions to remove the tower - Cadillac Owners Forum Oct 30, 2013 horn not working properly ' Cadillac Owners Forum Feb 22, 2004 More results from www.cadillacforums.com ..

You need a specialist rather than a 'mechanic'. An auto electrician with a professional grade scan tool computer can diagnose all the security system, the anti-theft immobilizer and all the modules and sensors in about 40 minutes. They also have access to the wiring diagrams and understand them. https://www.google.com/search?q=mobile+auto+electrician+near+me ..

Page 263 of the Owner Manual https://www.dezosmanuals.com/wp-content/uploads/2021/06/1993-Cadillac-Deville.pdf ..

If you're having trouble accessing your 2002 Cadillac DeVille's glove box because it seems to be locked and you only have the valet key, here are a few steps you can try:

1. Check for a Separate Valet Key Slot:
   • Some vehicles have a separate valet key slot inside the glove box. Insert the valet key into this slot, turn it, and see if it unlocks the glove box.
2. Inspect for a Release Button:
   • Examine the perimeter of the glove box for a hidden release button. Some glove boxes have a button or latch that may not be immediately visible.
3. Use the Main Ignition Key:
   • Even if you primarily use the valet key, try using the main ignition key to unlock the glove box. Sometimes, the valet key may not have the same features as the main key.
4. Check the Owner's Manual:
   • Refer to the vehicle's owner's manual for specific instructions on unlocking the glove box. It may provide information on alternate methods or features specific to your Cadillac DeVille.
5. Contact the Dealership:
   • If none of the above steps work, consider contacting your Cadillac dealership. They may be able to provide guidance on unlocking the glove box or assist with obtaining a replacement key.
6. Professional Locksmith:
   • If all else fails, you may need to consult a professional locksmith. They have tools and expertise to help unlock car compartments, including glove boxes.

Remember to avoid using excessive force as it may damage the glove box. Additionally, make sure you have proof of ownership and identification when seeking assistance from the dealership or a locksmith. If your vehicle has an electronic locking mechanism, it's essential to rule out any electrical issues or malfunctions as well.

Engine firing order (1 8 4 3 6 5 7 2) The cylinder numbering usually starts from the timing belt or chain side, so it does on your engine also. The FRONT BANK (at the radiator ! ) : 1 3 5 7, starting at the passenger side The REAR BANK (at the firewall): 2 4 6 8 , starting at the pass. side also. The #1 cylinder on the distributor cap is around 3 o'clock and the rotor turns counter clockwise.

The firing order for a 1995 Cadillac DeVille 4.9 V8 is 1-8-4-3-6-5-7-2.

https://www.cadillacforums.com/threads/trans-issues-tcm.1122279/ This forum may help. TCM is internal.

Turn Signal Lamps The TSIG/HAZ fuse in the rear fuse block supplies battery positive voltage to the flasher module. The module is part of the hazard switch assembly. The flasher module has ground at G201. The turn signal lamps may only be activated with the ignition switch in the ON or START position. The IGN-1 fuse in the rear fuse block supplies battery positive voltage to the turn signal switch. When the turn signal switch is placed in either the left or right position, current flows from the turn signal switch assembly to the flasher module. The flasher module then sends an on-off voltage signal to either the left or right turn signals and their instrument cluster (IPC) indicator. When the hazard switch is pressed, the switch contacts are close and the turn signal/hazard flasher module hazard input is grounded. In response to this input, the turn signal/hazard flasher module supplies battery positive voltage in an on and off flashing pattern to all the turn signal lamps. This also activates both turn signal indicators. When a THEFT is occurring, the DIM grounds the turn signal/hazard flasher module hazard input. The left turn signals have ground at G401 and at G402. The right turn signals have ground at G401.

https://www.fixya.com/cars/t22819009-2005_srx_oil_pressure_switch_location