2003 Chevrolet Silverado 1500 HD Questions

Get answers to questions about your 2003 Chevrolet Silverado 1500 HD at RepairPal. Find solutions, diagnose problems and get back on the road.

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Truck runs fine just no acceleration and reduce engine power coming on

I lost the plug in back of it

Motors work when jumped. Replacement switches do not fix the problem.

i arched the battery cable & now the instrament panel quit working but i cant find any blown fuses but my gauges no longer work

i replaced the sensor and it still does the same thing

just had a battery test, charging system test,(load and ripple) and starter test all good.

Every time I turn it on it starts to sound like a tweet noise, and when I drive on bumpy road too?

It will go from 4 high to auto 4 but will not go in 2 high

Then the engine will not run more then 2000 RPM's and runs ruff

Doesnt matter what i change on the control, it still blows cold on the left and hot on the right. It started by blowing out the defrost and i reset it and it now blows out the front vents.
Please Help!

truck running hotter no raditor cap can't find raditor drain plug... need to change out oil pressure sencer where on engine?

I have had a problem with the 4wd two times, paid 800.00 each time to have it repaired. I am currently experiencing
the same problem for the third time. Today it went from 2 wheel drive to 4 low on it's own. I am concerned it will do
this on the highway at a faster rate speed and may be leaving parts behind which can cause a terrible accident.

I have a 2003 Silverado 1500 HD with a little over 100K miles on it. It is having intermittent starting problems. Checked the fuel lines/pressure, so it has nothing to do with the fuel system. It will crank, turn over, then die. I have talked to countless people and no one has any idea what it is. Took it to Advance Auto and checked the computer for codes, nothing, not even a check engine light. The only thing I haven't ruled out is the PCM going out or a sensor.