Cadillac Eldorado - Recent Questions, Troubleshooting & Support

Regardless the year, maker, model it stands for No Color Associated/Assigned. In most Chrysler schematics I've seen generally the wire leading from the alternator (8 gauge on stud with nut) is listed NCA going to a fusible link (10 gauge) sitting between the 8 gauge Red battery connection.

Question edited for clarity. Question moved to model category. Help in the link. Also click on the images tab https://www.google.com/search?q=1984+cadillac+eldorado.oil+pressure+switch+wiring+diagram ..

Question edited for clarity. Question moved to model category. That is proprietary information that will not be available to the general public as no one is supposed to be inside them. If you are, they all have a number on them and that is the electronic part number. The best plan is to send it to a company that repairs ECMs. As you can see, no information online. https://www.google.com/search?q=1995+Cadillac+Eldorado+ECM+Mosfets ECM repair - exchange - replacement https://www.google.com/search?q=1995+Cadillac+Eldorado+ECM+repair ..

a wire is cut check near all body work you may find it.

Check out the link https://www.google.com/search?q=1993+Cadillac+Eldorado.+Replace+a+turn+signal+switch ..

These are early automotive electronics, its starting to show its age, a bad sensor, a corroded connection ect,ect. 22 years old, surprised a computer can last that long If you need further help, I’m available over the phone at https://www.6ya.com/expert/david_4c166ba81493f541

yes change fluid. if that dosnt work buy new shift solinoids. and replace them. also check all the wiring from transmission to pcm and from conector to solinoids when u take the pan off. just disconect the solinoids. and use a digital multimeter innva brand put it on continuity and touch wire after wire till it beeps indicating wiring is touching . some will beep because thay are still conected and would have to remove transmission to disconect them. i just had this exact problem on my 94 sls . i replaced solinoid a-b and did a fluid change and checked the conections going to the transmission. and it runns good now

There should be a U shaped clip that pushes in from the front side of the shifter. Use a small flatheaded screwdriver to pull it out.

with age of car many things cud be worn on trans--do a pressure chec for any internal leaks--may just need a trans fluid change or a tv valve ajust etc --automatics are very complicated-get a book or ask a reputable tech to test drive

Grab some refrigerant gauges and take readings. If the low side has more than 40 psi or so of pressure, the low limit switch will close and allow the compressor to run. If there is indeed low pressure causing the compressor not to run, you will need to flush the system after eliminating the source of the leak. If the a/c compressor has never been changed, it is probably the source of the leak.

1985 has the 4.1 engine not Northstar and is not serpentine. Hope this helps.

W age of car..also replace blower motor n evapirator cause theyr close by and will save lotta munney

Do you have power in and out of the dash light dimmer switch ?

Those are mem-cal codes, unless you changed the ECM the PROM (a separate part inside the ECM) has gone bad or the ECM itself went bad, if you just replaced your ECM with a used one you need to swap PROMS just remove the 2 screws and remove the plate then the PROMS. If this doesn't workYour best avenue is to remove the ECM then go to a parts store that sell Standard Motor Products they have an R+R program and will repair your ECM and PROM and send it back. I hope this helps. Take Care.

DTC P0452 Fuel Tank Pressure Sensor Circuit Low Voltage The fuel tank pressure sensor is located on top of the fuel tank. Circuit Description The fuel tank pressure sensor measures the pressure (or vacuum) in the fuel tank. The powertrain control module (PCM) provides the sensor with a reference voltage, a signal circuit, and a ground. The sensor returns a signal voltage to the PCM relative to the pressure in the fuel tank. The PCM should see a signal voltage increase as the pressure in the tank decreases (more vacuum). As the pressure in the tank increases (less vacuum), the PCM should see a signal voltage decrease. The PCM uses the sensor signal to test the integrity of the EVAP system. If the PCM detects a signal voltage that is too low, DTC P0452 will set. Your best bet , take your vehicle to a qualified repair shop.

If your mechanic had it on a lift there's a good chance he turned the electronic suspension off and forgot to turn it back on so drive it till Monday. Take Care.

Check radiator fan relay fuse and relay. If OK check a/c pressure switch.

with a meter test fuses relay level sensor for power to unit test and inspect unit

Fuel Air Sensor at the exhaust manifold and Catalytic converter and the O2 Sensor after that Cat.