20 Most Recent 2007 Chevrolet Trailblazer - Page 3 Questions & Answers

help us try to help you, what is it doing? honking when ever it wants or what? I would hunt down the horn and check the wires..fuses, ect

check the drain hole under the water pump. Check the welsh plugs in the block and head for rust stains. Have a pressure test done on the cooling system. Check for wetness under the heater.

Could be the water pump. There is usually a weep hole on under side of the pump. When they go bad sometimes they leak out the weep hole.

Check that the sensor /wire was not damaged in the repair process. As the brake system is set up in a cross pattern left front and right rear and right front and left rear the code is reading the pair that is subject to failure. This crossing of the brakes is so if you have a brake failure and loss of fluid then half of the system is still operational and will allow stopping in a straight line rather than a side skid.

Check the fuse to the headlights, if they have not burned out, then have the relay swich checked.

The code U1026 means "Loss of Active Transfer Case Control Module Communications". Read this forum to know more.Protect your vehicle from winter y roads by using Bushwacker Fender Flares

what is the noise like