Expert Answers about GMC C/K Series Pickup
- Troubleshooting No Power on 6-Way on 1996 GMC Sierra
- If this is factory wiring on your 1996 GMC Sierra I would start by checking fuses. Your manual or fuse box lid should have the fuses labeled. If it is not factory wiring I would start by inspecting the connector at the rear of the vehicle. Make sure it isn't damaged and is free of corrosion and debris.
Assuming it is in good shape you will need to check the wiring since your probably have a short. I would start by checking the ground connection. Make sure it is secure on a clean, bare-metal...
view full answer... - Will AirBedz Rear Seat Air Mattress # AB59FR Fit 1993 GMC Half Ton
- Yes the # AB59FR will fit in the back seat of your 1993 GMC half ton truck with an extended cab.
view full answer... - Troubleshooting Draw-Tite Activator IV Trailer Brake Controller on 1987 GMC Sierra
- You will need to test the brake controller wiring using a circuit tester like # 40376. First check and test the connector at the bumper. Next check the red wire connection. It should be attached to the wire on the stop light switch that only has voltage when the brake pedal is pressed. If your red wire is connected to a wire that carries even a few volts when the brake pedal is not pressed, it is not the correct wire.
Make sure that the white ground wire is attached to a clean metal surface...
view full answer... - Troubleshooting Brake Controller that Only Shows Connection When Coupler is On Hitch Ball
- If you can't get the trailer to show a connection unless the coupler is touching the hitch ball that means your trailer wiring has an insufficient ground. Sometimes if a trailer isn't grounded properly it will end up grounding through the hitch ball to the truck frame. Try improving the ground wire from the connector on your trailer to the trailer frame and most likely you'll see the controller work like it should.
view full answer... - 12 Volt Power to Trailer Connector Stopped Working on a 1998 GMC C/K Series Dually Diesel
- What you might be seeing is a circuit breaker that has been tripped and is not allowing power to go through. On the C/K series trucks like your 1998, the 12 volt charge wire is connected from the battery and should be run straight back to the trailer connector. What may be the problem is a tow package fuse or relay that has gone bad and needs to be replaced. Consult the vehicle owners manual for all of the fuses/relays related to the tow package wiring.
If the 12 volt circuit was wired...
view full answer... - Trailer Lights Flash with Vehicle Flashers and Go Out when Stepping on the Brakes
- So it sounds like the flashers are tied into the running light circuit on the truck side. I am not sure it this is how it is supposed to be or if there is a wiring issue on the truck. The correct 4-Way for a 1998 GMC C/K series is # 118315. It just plugs in line with the vehicle tail light harness, see instructions link.
Applying the brakes may be causing the trailer lights to go out while the flashers are on because it is too much draw on the wiring which is causing the lights not to...
view full answer... - Brake Controller Will Not Adjust and Digital Meter Shows Voltage Issue
- I contacted the manufacturer and have a different way for you to check to see if your brake controller is able to work properly. They suggest not using the digital multi-meter because it doesn't actually pull any power, so the brake controller doesn't respond the same way.
First, unplug your trailer and check to see if the "c" goes away on your controller. If so, use a 12-volt incandescent circuit tester, like # PTW2993, because the light bulb will actually draw some amperage that will...
view full answer... - Troubleshooting High Transmission Temperatures after Transmission Cooler Installation
- I would try reversing the direction of the fan on the Derale Transmission Cooler # D15960 that you have installed on your 1994 GMC Truck to see if that will yield you cooler oil temperatures.
Generally speaking coolers loose from 25 to 40 percent of their cooling efficiency when the fan pushes air through the cooler as opposed to being pulled through it. Also, depending on the location of the cooler in relation to underside of your vehicle the fan might be fighting the natural airflow...
view full answer... - Brake Controller Applies Trailer Brakes When Headlights are Turned On
- The first thing to check would be to make sure the brake controller is in the right port on the block underneath the dash. It should be the second port from the left on the top row. I have included a link to the instructions for your particular truck.
It is possible that your truck did not come with the appropriate wiring to the rear of the vehicle. If the brake controller is in the correct port and it still does not function properly, then you will have to hardwire the brake controller...
view full answer... - No Signal when the Brakes are Applied After Brake Controller Installation on a 1995 GMC Pickup
- It sounds to me as if you do not have the red brake switch wire or the black power wire from the Agility brake controller, # HM47295, connected to the correct circuit.
Use a circuit tester, like part # PTW2993, to test the black wire first. You should have 12-volt power at all times going into the brake controller. If not, you will need to find a constant 12-volt power source. We recommend using 10-gauge wire, # 10-2-1, and a 30-amp circuit breaker, # PK54530, inline on the power wire...
view full answer... - Curt Venturer Brake Control Applies Full Power to Trailer Brakes All the Time on 2000 GMC Sierra
- The first thing to check is the wiring harness # C51342 for your 2000 GMC Sierra. Specifically, check the location of the red wire on the end that plugs into the truck. Make sure it is in the same location as the one in the picture. If not, or if any of the wires are in different locations, move them to the correct locations according to the picture.
Make sure the controller is mounted within the range specified in the instructions, linked to the right for reference. If it is outside of...
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