2000 Cadillac DeVille - Answered Questions & Fixed issues

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2000 Cadillac... | Answered on Feb 14, 2019 | 38 views

po 443 bad evap purge vavle.

2000 Cadillac... | Answered on Jan 13, 2019 | 2,331 views

No the torque converter clutch solenoid won't have anything to do with it . More then likely it's the internal mode switch . This tell's the computer which gear is selected , then the PCM energizes the correct shift solenoid . The PCM will send this info to the instrument cluster over the class 2 serial data network . The instrument cluster has a microprocessor with logic programmed into it. More then likely has DTC'S - diagnostic trouble codes stored in one of the computers on the vehicle . Your best bet , take it to a qualified repair shop .

The internal mode switch (IMS) is a sliding contact electrical switch assembly that corresponds to the PRNDL position selected. Each of the PRNDL positions has a unique ground pattern on the four wires from the PCM. The IMS consists of two major components: The housing, which houses the tracks and makes up the stationary contacts. The insulator assembly makes up the moving contacts and is linked to the detent lever. The range detection is accomplished by securing the moving contacts of the IMS to the detent lever. When the driver selects a PRNDL position, the detent lever inside the transaxle rotates. This slides the IMS moving contacts which in return grounds the four wires in a unique pattern for each gear selection corresponding to the PRNDL position selected. The IMS is electrically connected by five wires (four of which the PCM supplies voltage to and one wire that is a common ground) to the transaxle pass through connector.
PRNDL Display
The IPC is equipped with a vacuum fluorescent (VF) PRNDL display. The IPC PRNDL information is received from PCM via class 2 serial data message.

Turn OFF the ignition.
Install a scan tool.
Start the engine.
Place the gear shifter in the following gears:
Observe the IMS parameter in the powertrain control module (PCM) data display.
Does the scan tool indicate that the IMS parameter is the same as the PRNDL display for all gears?

2000 Cadillac... | Answered on Feb 17, 2018 | 97 views

Look at all the body and engine grounds, there are some you may not be aware of so it would be advisable to look them up.

2000 Cadillac... | Answered on Feb 02, 2018 | 40 views

If you disconnect the battery, in most cars this will reset all systems. However from your description I would expect that the problem is a faulty actuator

2000 Cadillac... | Answered on Nov 22, 2017 | 71 views

This is just a guess, but try disconnecting the battery cables for a few minutes, then reconnect them and see if you can correct it.

2000 Cadillac... | Answered on Nov 10, 2017 | 96 views

its more likely your battery is toast. have that checked before you spend any money on an alternator.

2000 Cadillac... | Answered on Oct 02, 2017 | 128 views

Best bet ,have it diagnosed at a qualified repair shop . Has a couple of electronic modules involved . Driver door module , heated seat module . But before you criticizes have a look at the wiring diagram an tell me you understand what's happening .Free wiring diagrams here http://www.bbbind.com/free_tsb.html Enter vehicle info. year , make , model and engine size . Under system click on interior & driver amenity , then under subsystem click heated seats . Click the search button then the blue link . Hooking up a scan tool that can communicate with driver door module for the purpose of checking for DTC'S diagnostic trouble code's .

2000 Cadillac... | Answered on Sep 11, 2017 | 160 views

Sounds like a failing pump in the transmission or a torque converter problem. Check for any error codes (DTCs) using a code checker to see what is setting the warning. Next stop is probably a transmission shop.

2000 Cadillac... | Answered on Aug 03, 2017 | 49 views

If the warmed up temperature is OK, probably not an airlock in the system. As for "check cooling level", this is shown when the integral level sensor in the reservoir tank is either not functioning or you have a bad electrical collection. This integral level sensor is not replaceable - you will need to replace the tank.

2000 Cadillac... | Answered on Jun 14, 2017 | 83 views

Check the actuator motor on the heater box inside down by the floor in the center of the car. The motor moves the paddles inside the heater to direct the heat and the ac. It is a small motor and on your car with climate control there is probably two of the motors. One for the passenger side and one for the driver side.

2000 Cadillac... | Answered on Jun 13, 2017 | 122 views

Still sounds like the linkage at the transmission. Take another close look while someone is working the gear shift lever.

2000 Cadillac... | Answered on May 25, 2017 | 88 views

A lot of vehicles used a wire to run indicator hooks from column to indicator may be able to see from underneath.

2000 Cadillac... | Answered on May 24, 2017 | 44 views

Could be the serpentine belt rubbing on something, but is probably a bearing problem in the belt idler pulley. However, it could be the power steering pump, AC compressor clutch or generator. As the water pump is at the opposite end of the engine, it's probably not that.

2000 Cadillac... | Answered on Apr 18, 2017 | 115 views

any low fan relay or just fan comes on when the aircon switch is on

2000 Cadillac... | Answered on Apr 10, 2017 | 45 views

Two cooling fans controlled by three relay's . If only one fan is working ,that could be a problem .
Coolant Level Sensor Description
The coolant level sensor monitors the coolant level in the cooling system and indicates if the coolant is low. This sensor is located at the base of the radiator surge tank and is not serviceable.
The IPC receives a discrete input from the engine coolant level switch. The engine coolant level switch is normally closed. When the engine coolant is low, the engine coolant level switch opens. When the IPC receives an open signal from the engine coolant level switch, the IPC displays the message on the DIC.

Relay Driven Dual Cooling Fan Diagnostics There are using a pontiac , by your cadillac is the same .

2000 Cadillac... | Answered on Mar 24, 2017 | 107 views

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