2003 Cadillac Deville - Answered Questions & Fixed issues
I have a 2003 Cadillac Deville with a bose radio.
On the Seville's, the radio amp is behind the back seat so I assume it will be the same for the Deville.
I believe you have to remove the rear seat back to get to it.
You may be able to get to it through the trunk.
11/8/2021 4:28:27 AM •
2003 Cadillac...
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Answered
on Nov 08, 2021
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1,278 views
I have a 2003 cadillac deville, the check engine
Cost and complexity depends on exactly what trouble codes you found. Post the codes and we can help. Saying that it's the pollution control system is way too broad. There are many components in the system
2003 DeVille DHS rear suspension:
A GM dealer can tell you if you give him the VIN number, but the simplest way is to check one of the rear struts for an electrical connection (will also have a leveling air line connection). If there is one, you have a road sensing suspension (RSS) with rear leveling capability - if not, just air shocks. If you have RSS, these struts are very expensive and notoriously unreliable, and you may want to replace them with air shocks. However, if you do this you will have to trick the RSS into thinking they are still there by terminating each electrical connector with a resistor (see the Cadillac Forums website).
03 Cadillac deville... Problems starting
fault codes will reveal a problem ambient air temp or atmospheric pressure sensor(BARO) fault
these units report to the ECM so that the correct air/fuel ratio can be obtained
The same as pulling on the old choke
2003 deville no speedometer sticks in gear?
Easy to buy, difficult to replace as it is in a very awkward place on the top of the end of the transmission near the right drive axle location. Requires a hoist and the need to disconnect a few things to get at it.
Three intermittent warning lights
I would think a sensor is going bad , but ,without testing that is just a guess , just like the dealer tech , assuming it's a module or a fuse ! With the light's on checking for DTC'S - diagnostic trouble codes would be a real good first step . The dealer tech should have hooked up the Tech 2 scan tool an checked codes an look at sensor data parameters ....
Service engine light is flashing and a rough idle
With the service engine light flashing it means there is a catayltic converter damaging misfire happening . With you not knowing about car's it may be hard for you to fix . Have you ever changed spark plugs or plug wires ? Are there any parts stores near you ? If thier is have them check codes . It will tell you which cylinder is misfiring , and they can give you advice on what to do , sell you parts you need . Also there are videos on youtube showing how to test for what mite be causing the misfire . I wouldn't drive it too much , you don't want to mess up the catayltic converter because they are not cheap .
2003 cadilac deville driver window off track. motor seems to work but window will not go up.
Window regulator is bad in the drivers door . Do you know what a regulator is ?
The Trainer 24 Power Window Troubleshooting Do you know anything about automotive electrical testing ? How to read an use a wiring diagram ? Do you know there are two side to a electrical circuit ? B+ voltage an a ground side . Plus there is electronic control modules and class 2 serial data network involved . When you push the switch for a window othen then drivers window on the drivers door . a class 2 message is sent to the other doors modules . The correct module will then open it's window .
http://www.bbbind.com/free_tsb.html Check out free wiring diagram here .Enter vehicle info . year , make , model and engine size. Under system click on body & accessories , subsystem click power windows . Click search button , then click each link one at a time .
3/27/2017 4:07:44 PM •
2003 Cadillac...
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Answered
on Mar 27, 2017
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1,093 views
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