20 Most Recent 2000 Oldsmobile Bravada - Page 2 Questions & Answers

key wont come out till you have power --try boosting the truck and when started have battery and alternator tested ---to open hood remove the cable clip from the pull handle and use a pliers to pull it open cable habit to stretch --same problems with sister trucks trailblazer--envoys

The center if it's coming off of a distributor which is it should not be it's D I S check the coil packs

I would verify that the catalytic converter is not plugged or the muffler. If one of the two gets plugged it will put back pressure on the engine and not allow fuel into the cyl. to be fired and car will not run. You can also pull a couple of the new plugs and see if they have fuel to them or if you have an 02 sensor ahead of the cat you can remove it and see if car will start if so the exhaust sys. has one or the other plugged. Understand it will run rough but it should start. In addition, did you check the fuel pump pressure and did you change the fuel filter.

you pulled the ignition switch and installed a different switch that means that you have installed a different immobilizer system try reprogramming the new key to your ECM and it will probably go

There are three different transfer case's ! Which of these does your olds have ? Transfer Case - NVG 136-NP4 (One Speed Automatic) Transfer Case - NVG 233-NP1 (Two Speed Selectable) Transfer Case - NVG 236 (Two Speed Automatic) All three have an electronic control module ! When the light is on DTC'S are stored in the transfer case shift control module . SERVICE indicator (AWD/4WD) lamp The SERVICE indicator (AWD/4WD) lamp is an integral part of the instrument cluster and cannot be serviced separately. This lamp is used to inform the driver of the vehicle of malfunctions within the automatic transfer case (ATC) system. The SERVICE indicator (AWD/4WD) lamp is controlled by the transfer case shift control module via a Class 2 serial data message. There are three speed sensors on the Automatic Transfer Case (ATC), two on the rear output shaft and one on the front output shaft. Each speed sensor is a Permanent Magnet (PM) generator. The PM generator produces a pulsing AC voltage. The AC voltage level and number of pulses increases as speed increases. Vehicle Speed Sensor One of the two speed sensors on the rear output shaft is the vehicle speed sensor (VSS). It is an input to the vehicle control module (VCM). The VCM sends this information to the transfer case shift control module via the Class 2 Serial Data bus. Rear Propshaft Speed Sensor The transfer case shift control module converts the pulsating AC voltage from the rear propshaft speed sensor to a Rear Propshaft Speed in RPMs to be used for calculations. The Rear Propshaft Speed can be displayed with a scan tool. Front Propshaft Speed Sensor The transfer case shift control module converts the pulsating AC voltage from the front propshaft speed sensor to Front Propshaft Speed in RPM to be used for calculations, and to monitor the difference between the front and rear propshaft sensor speed. It is also used in the AUTO 4WD mode of operation to determine the amount of slip and the percent of torque to apply to the front axle. The Front Propshaft Speed can be displayed with a scan tool. Transfer Case Encoder Motor The transfer case encoder motor is a permanent magnet D.C. motor and gear reduction assembly. The encoder motor is controlled with a Pulse Width Modulated (PWM) signal provided by the transfer case shift control module. It is located on the left hand side (drivers side) of the transfer case. When activated it turns the sector shaft of the transfer case to shift the transfer case. This circuit consists of a power supply relay (Motor Feed A circuit ) that supplies voltage to the motor. The Motor Control B circuit is a PWM driver that varies the duty cycle to control the amount of current through the motor to ground. There are a number of codes that can set . DTC C0300 Rear Speed Sensor Malfunction DTC C0305 Front Speed Sensor Malfunction DTC C0308 Motor A/B Circuit Low DTC C0309 Motor A/B Circuit High DTC C0310 Motor A/B Circuit Open DTC C0315 Motor Ground Circuit Open DTC C0374 General System Malfunction DTC C0376 Front/Rear Shaft Speed Mismatch DTC C0550 ECU Malfunction DTC C0611 VIN Information Error You don't want to just start replacing parts , that could cost $$$$$$ . You could check connections at all the sensors an the control module , but other then that ,well . Your best bet , take it to a qualified repair shop .

COULD BE SECURiTY LIGHT NOT ALLOWED TO START CAR.

Try you tube !

The first thing you need to do is have the engine control computer scanned for fault codes, this is called a OBD2 fault code test. Autozone dos this testing for free.

From my experience, no the engine won't fail, but your engine will run a little irregular and suck more gas.

Behind the handle is 2 rods one to each side that have clips that hold it to the handle, something like this. https://youtu.be/pYCWNpGbVro

If you are looking for some sort of water valve that diverts water to/from the heater core, forget it. They don't exist anymore. They went away shortly after the widely adapted use of air conditioning in today's modern cars. Now, hot coolant is routed thru the heater core at all times, but is controlled by a cable-operated, or vacuum operated "blend door" located inside the heater box. If you are not getting heat to the vehicle, there are a few possible problems: 1. Bad thermostat - thus low coolant temperature and lack of heat. 2. Clogged heater core - no water flow thru core, thus no heat. 3. Broken control head - loss of cable or vacuum actuation of blend door. 4. Broken heater box/vacuum tank - no actuation of blend door. Of the items listed above, based on the age of the vehicle and the likelihood of occurrence, I would investigate them in the order of 2, 4, 1, 3.