You might want to check if you have vacuum going into and coming out of when the switch is in 4 wheel drive. Service 4wd light has been coming on for a while, time to do something about it now. If your'e in Edmonton, something about the -45C send this guy a email, he is awesome. It might be called something else by the Parts Department. Catalytic converters cannot fail on there own and the original cause of failure must be repaired to prevent repeated converter failure. Commercial, heavy duty, custom, or off road vehicle use voids the warranty.
The light will go on and off with the 4X4 request. Starts fine cold even when the block heater is not plugged in. If it were the 4x4 actuator the lights would still illuminate on the selector switch, it just wouldn't engage the 4x4. Shop online, find the best price on the right product, and have it shipped right to your door. If the problem still exists, you will have to repair or change your encoder motor. Hope this helps fix your piece of chevy, I can try to answer any questions.
But just to make sure, the control module for the encoder motor is located behind the passenger side kick plate inside the vehicle, passenger side, where your feet would be, outside side. When I click on the 2 hi switch the 2 hi light will blink a few times, I hear a click and it goes solid and the 4 hi light stops blinking. Just removed the dash bezel, control panel. You'r problem is all electrical trust me. Any advice would be appreciated, Thanks. This is the only purpose for this switch and a bad one will not affect the functioning of the 4 wheel drive.
It is 15165891 if anyone else needs it. Not sure why the fuse went out though. Ive checked all the fuses i think might be linked to the 4wd and they all seem fine. Okay, so i re-soldered the pins on the board and it didn't seem to work. That will keep the front axle engaged at all times.
The four-wheel drive system is crucial during slick weather conditions. Disconnect it for a few seconds and then reconnect it. Any ideas, I scanned through the forums and couldnt really find anyone that has had all their lights go out like mine. Hope this helps someone else down the road. We provided the security that your switch will activate every time. I plugged it back in and turned on the truck and no lights came on and there were no options for 2wd or 4wd.
This is a really bad time too cause we just got a bad snow storm. I had that problem too. I had my wife watch the lights on the panel and the 4 hi light just kept on flashing and I didn't hear anything happen. Craig can get a new aftermarket for 250. Sure hope not, although it did get really cold just before it happened.
I had no lights and it said service 4wd. Commercial, heavy duty, custom, or off road vehicle use voids the warranty. I had the exact same problem as you last week. The system does not know which calibration to use without this information. He diagnosed my 04' sierra 1500 crew,over the phone. The load clunk is the transfer case being shifted by the encoder motor. Thanks for all your advice.
Checking for codes in the 4X4 control module should have been the first step. Let us know the results! I was hoping it was either the switch or the sensor but no luck. Thanks for your help Sometimes the vehicle has to move a couple of feet for the axle to engage the splines of the gears have to mesh. The 4x4 system has a control module which supply's B+ voltage to the switch. Took the 4x4 control panel apart and re-flowed the solder on the connector pins where the wire harness connects to.
You saved me loads of money. I found the number on the vacuum solenoid. Catalytic converters cannot fail on there own and the original cause of failure must be repaired to prevent repeated converter failure. The next move is the check the servo under the battery tray. Hear from other customers via the 278 reviews on parts for your Chevrolet Silverado 1500. When activated it turns the sector shaft of the transfer case clockwise or counter clockwise to shift the transfer case.
I asked a few friends around and they said it could either be the switch itself or the sensor on the transfer case. Just give it a gentle twist, it should come loose. Most likely, it's the solenoid. I taped the ends of hoses together and moved the Blazer a few feet and the lights stopped flashing and everything seemed to work ok. Have already checked the 4wd switch and replaced the encoder motor.