20 Most Recent 1986 Cadillac Seville Questions & Answers

Try here: http://19.16.12.mf-home-factory.de/global/1986-cadillac-fuse-box.html

if it is not EFI there will be no fault codes if the fan is on the water pump then it will be a viscous fan (clutch ) hub and needs to be replaced.

If it is a automatic it may be low on transmission fluid.If fluid is full smell it if it smells burnt you need a transmission rebuild.If stick shift you may need clutch adjusted or have broken synchronizers.

there should be a diagram under the hood or in your owners manual. if not its always a good idea to have a repair manual and it would include that information. haynes or chilton would be the best and they are usually pretty cheap (10-20 bucks)

First make sure the battery is disconnected, if you are simply replacing the starter, hook the terminal to the same place as the old starter, if you are replacing the wiring, follow the same path as the old wiring. If there is no old wiring to follow, you will need a diagram or another similar engine, mabey at a wrecking yard to follow.

Most likely ,a bad bulb in visor

transmission has gone out also check tranny fluid

on GM cars, it can be numerous issue, im surprised he not pulling any code, did you take it the dealer or one of the small garage mechanic. they are two different breed and may have the right equipment or updated computer. have you air mass/throttle sensor check common problems at idle the engine stall. you cant fix the unit, it has to be replace if it bad, check ebay for used if needing to replace the unit

The key switch is probably worn with two affects it may be you can remove the key before it is properly turned off or is worn internilay.

Hi! Seeing that u have already checked the fuses and they are ok,u should now check the bulbs and the switch.

4.5 And 4.9L Engines

1. Remove the air cleaner.
2. Remove the TP sensor connector.
3. Unscrew the 2 TP sensor attaching screws and retainers, and remove the TP sensor.

To install:

1. With the throttle valve in the normal closed idle position, install the TP sensor on the throttle body assembly.
2. Install 2 TP sensor attaching screws with retainers. Do not tighten the screw until the TP sensor is adjusted.
3. Install the TP Sensor connector. Adjust the TP Sensor and perform the idle learn procedure.
4. To Perform the TP sensor adjustment.
   1. Disable the generator by grounding the green harness connector plug adjacent to the generator.
   2. Start the engine, enter diagnostics, and select PCM override PS103 'ISC Actuator'
   3. Press the 'COOLER' button on the CCP to retract the ISC Actuator. This action will disengage the A/C compressor and command the EGR 'OFF'. The Climate control center display will change from '50 to 00'. The ISC Actuator will slowly retract (about 20 seconds) to a fully retracted position. Verify that the throttle lever is resting on the minimum idle speed screw. With the ISC Actuator plunger fully retracted, disconnect the ISC harness.
   4. Select the PCM data PD01, 'TP Sensor', while still in PCM override PS03. Note the throttle position (in degrees) displayed on PCM parameter PD01.
   5. (-0.5° TO + 0.5°) No TP sensor adjustment required. Reattach the ISC Actuator harness and disconnect the grounding wire at the generator.
   6. TP Sensor (-10.0° TO -0.6°) or TP Sensor (+ 0.6° TO + 90.0°) TP Sensor adjustment required.
5. With the engine 'OFF' and the ignition 'ON', reenter diagnostics and select PCM override PS03 'ISC Actuator'. Press the 'COOLER' button to retract the ISC Actuator the minimum air setting.
   1. Loosen the TP sensor screws just enough to permit the sensor to be rotated. Open the throttle slightly and allow the throttle lever to snap shut against the minimum air screw. Adjust the TP sensor so the parameter display is 0°. Tighten the TP sensor mounting screws with the sensor in the adjusted position. Recheck the parameter to be sure the TP sensor parameter is (-0.5° to + 0.5).
   Install the air cleaner.

on brake pedal bracket under dash disconnect wiring remove switch -replace

their is none

your damper control has a problem

Videos and text based articles. They are nearly always to the left and right of the centre console under the dash. https://www.google.com/search?q=1994+cadillac+seville+sts+replace+blend+door+actuator ..