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2005 GMC Sierra - Page 2 Questions & Answers
License Plate Lights
Probably not... For some reason license plate light wiring and sockets are VERY prone to corrosion. Make sure to check the light sockets and try to get to the wiring close to them, your problem is more than likely very close to the lights.
What can I do to fix my transmission.
I presume this is an automatic transmission. If so it is likely your transmission fluid is low. There may be other problems, so I recommend you take to a professional transmission shop. It may be a minor problem and a little preventive attention may save your transmission.
Y do u need 2 buttons 2 use 4wd on 05 gmc
I have a 2003 GMC it has two buttons to use 4 wheel drive as most all do with push button controls...One is for standard highway driving with 4 wheel drive the other is for 4 wheel drive a low speeds for off road driving and conditions that need low speed less spin driving..not designed for highway use..and must be stopped to engage where 4 speed highway can be shifted on the go..hope this answers your question..good luck..
When the gauges in my truck fluctuate and the heat doesn't come on the way it should,does that mean the thermostat needs to be replaced?
You can replace the thermostat...it is relativity inexpensive to do..you will lose some of the antifreeze from tne top of your engine due the thermostat being a little lower then the top of the radiator..HOWEVER....Having a GM truck I believe that you have two separate problems...one the heat not coming on properly..your inside the car heat system works by sensors and activation mechanisms that work/move the doors within the heat/cooling housing..The common problem is the activater that moves from heat to cool visa/versa is defective or tne inside door is not operating properly...the activater is not to much of a job just above the gas pedal on the end of the heat/cooling housing..the other..door is on tne inside and quite a job to get at...The other gauge problem,if more the one of the gauges are fluctuating it is your computer board electrical system powering the gauge cluster..A COMMON PROBLEM ON GM AND CHEVY TRUCKS AND VANS..they can be re-calibrated but must be removed...if only the heat gauge...it may be your heat sensor on the engine block..again not a hard or expensive job..but is an important sensor..it controls the the fans that cool the engine and senses the temp of the water going to your heater core...A defective one could be sending false readings to your inside heat sensors in the cab..I.E heat not coming on right..my first bet would be CHANGE THE HEAT SENSOR.. Then go from there.Hope this helps..good luck
Why don't 05 gmc sierra speakers don't work
The best way to check is to try a different speaker at each location. If you know how to use a multimeter....you can ohm out each speaker from behind the radio without having to pull panels.
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2005 GMC Sierra 1500 - heater blows, but only cold air
Check coolant level. Check for heat at the heater hose going from water pump to heater core at firewall. Check to see that cable is moving coolant control valve from the closed to open position. Low mileage so it shouldn't be plugged heater core.
Want shift to over driver
Replace the TCC solenoid, EPC solenoid, Filter and fluid. This can be done by removing the pan. This is a first/quick fix. The other fix is to pull the transmission, go threw it and see what is wrong.
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