Top 20 1998 Cadillac DeVille - Page 5 Questions & Answers

mounted on passenger side firewall behind transmission dipstick

Sounds like a bad horn button which is actually part of the airbag. Replace your airbag. They're cheap on e-bay and it's not hard to do. Just make sure you disconnect the battery before doing any airbag work.

The passenger side air temp control has a problem. Check connections at switch. If you have a volt meter you can check the switch for continuity or ohms of resistance. No continuity, replace switch.

Take it to a car place like Kragen or Auto Zone or take it to a GM dealer.

Fuel guage and windows are not connected.. Does anything else not work,? Post comment .. let us know what is happening.

Use button on dash to open trunk?

there are too levels for refrigerant that affect the ac compressor . one is too low which you see and the other is too much. both control pressure switches tat work the ac clutch. IT is best to have a refrigerator /air conditioner mechanic add the gas as they will check out the system for leaks which you have

Check to see if the switch is properly pressed in when the door is shut. Also check to see if the wire is grounding

i would check the door open/close switch in the door jams. there should be a small button in each door jam that makes this light go out. i would go to each one and make sure they are not damaged first. then i would go one door at a time and manually push each button to see if the light goes out this way. once you narrowed this down hopefully you just need one of the switches. hope this helps

Probably needs a tune-up, timing may be off and check all the hoses, maybe flush the radiator too. I'd have it checked out, too many things can go wrong, and you want it done right.

In most GM cars and trucks there is a hidden system that most people are unaware even exists. From the moment you put your key in the ignition, there begins a constant line of communication between your key's security chip or transponder, to the ignition's lock cylinder, and then to the car's TDM (Theft Deterrent Module). These 3 parts are in CONSTANT communication. If the key is in the ignition, then these parts are sending signals to each other. The security light illuminates when that signal gets broken, even just for a second. When the signal breaks, the car misinterprets this as an attempt at theft and goes into antitheft mode. The car thinks its being stolen or hotwired because it is not getting that signal from YOUR specific key all the way through the system. This is why the security light turns on and shuts down your starter, and/or the vehicle after 2-5 seconds. This link explains it pretty well. http://vatspasslockpasskeysecurityhelp.yolasite.com/

Check the a/c belt tention

try using a scanner to reset the CPU program as removing the battery often corrupts the CPU program and alarm systems.

Sounds like alternator may need replacement

check if any interior lights left on ,the trunk is the usual one that gets forgotten, have battery tested for charge holding and that the alternator is charging correct voltage the alarm and door locking are a symptom not the problem which is in the charging/battery

bad earth contact on dashboard clocks... pull them out and redo plugs with some switch contact cleaner...if you see mould there ya go...hope this helps

How about going to a repair shop, if you don't work on cars How would anyone be able to guess at that question?

must be head gasket then

HAVE YOU CHECKED INSIDE THE TRUNK THERE IS A PANNEL ON REAR OF BACK SEAT THAT HAS RELAYS AND FUSES

Water pump? Do you have some codes?