Nothing happens at all when pushing the buttons. Both of these problems should not be happening to a highway driven vehicle with 61500 miles. If this does not resolve the issue, please proceed to troubleshoot the front vacuum system, 4X4 solenoid, 4X4 actuator, front axle, or front axle indicator switch. Next it could be your buttons not working I doubt it but has happend. The contact stated that the heater and air conditioner failed to function. The vehicle got stuck in 2-wheel drive low.
Pin F4 should be monitored with either a lamp or meter. After diagnosis, told there was a encoder motor failure and the motor had to be replaced. Jun 23, 2009 Need more information, but try to engage with engine at idle and transmission in nuetral and then slowly put into gear. If the driver attempts to switch the transfer case into any other mode, the transfer case makes noise as it shifts, the service 4x4 light comes on and the newly selected mode indicator light starts to flash. If the dash light flashes andyou hear a clicking sound that means you have power to the relay.
The module can then be restored to the vehicle, and your 4X4 should work normally. The contact took the vehicle to the dealer and they discovered that the 4 wheel drive control module failed. The current mileage was 102,000 and failure mileage was approximately 80,000. If the mode indicator light remains steady and the Service 4X4 does not light, proceed with this repair procedure. The contact was able to shut the engine off and have the vehicle towed. The failure mileage was 80,000. This pin should be high or 12 volts when in 2 wheel drive, and low or ground when in 4 wheel drive.
Remove the battery and tray; look for a holeburnt in the vacuum line or actuator module rubber diaphragm. The current mileage was 50,041 and failure mileage was 47,000. Some vehicles will only engage 4wd system in D for Drive not the D with the circle around it for Over Drive, due to speed restrictions on the system. Since 1919, Standard Motor Products has engineered a full line of engine management products, including ignition parts, sensors and on-board computers. See product for application and installation details. The front wheels did not lock in.
I had it checked and I was told the encoder motor and or solenoid was no good. A quick test of the system is to ground the F4 pin, recycle the ignition, and try shifting the transfer case into and out of 4 wheel drive. The 4 wheel drive failed to engage and the Blazer, within seconds sliped over the cliff. I don't know who to talk to, and find out what to do about this repair and to have the manufacturer liable for the expense. When it is time to replace the transfer case motor of your drivetrain system, Replacement offers a tested and dependable replacement part for your car. The vehicle was taken to a dealer.
Two year prior to this incident 4-hi would go in an d out on it's own while the consumer was driving. A new switch was installed and temporarily corrected the failure before it recurred. We rolled down the cliff approximately 50 feet and hit a tree. The abs warning light illuminated. My vehicle is in excellent condition and I would like to have this problem fixed by the manufacturer. Since 1918, Dorman Products has supplied the automotive aftermarket with high-quality replacement parts, hardware and fasteners.
The contact stated that the vehicle would not shift into 4 wheel drive. Bend the 8 tabs away from the back cover. Made an appointment with local dealer. Being both cheap and inquisitive, I wanted to investigate further, and I will provide a more in-depth answer. There was minor damage to the front bumper and valance panel. In addition, the contact stated that the four wheel drive was activated but failed to engage and the oil pressure gauge displayed an incorrect reading. It should be removed but left connected.
You can check other resistors nearby for a relative comparison. The consumer contacted the manufacturer to see if any recalls existed, but none did. First the cheapest is to check the vacuum line runs to acuator under the battery tray. This information refers to the 15748800 module. Prior to that, the light on the 4-wheel button would be lit during switching but nothing would happen. If no holes found in the hose or actuator diaphragm I would use batterycables and hook up the battery and start vehicle then check for vacuum byputting my finger on the end of the actuator hose. Besides the fact that if I wanted to trade the vehicle, this would be a great depreciation on a trade-in.
The manufacturer was notified of the failure. When the activator get vacuum it pulls acable that attaches to the front diff engaging it, when engaged the wires onthe front diff send a signal to the 4 X 4 light on the dash telling you it is engaged. Now, the lights won't work except for the 2 wheel drive light. If there is vacuum then problem in actuatoror cable linkage. In this module, the resistor is required to operate near it's limits, and I believe that the conformal coating trapped heat and caused the resistor to fail.