Question about 2004 Chevrolet Impala
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Posted on Jan 02, 2017
Radios in the 2004 Impalas are tied to the vehicle's VIN through the computer, so it may be somewhat difficult to get the code. However, the following steps should work:
1. Press and hold the buttons for presets 1 & 4 (may be 2 & 3). The word "SEC" should show.
2. Press the "MIN" button. "000" should be displayed.
3. Press the "MIN" button again to have the second two numbers appear. Record these numbers.
4. Press the "HR" button for the first two numbers to appear. Record these numbers. -- Note: Your number sequence should be the numbers from the "HR" button followed by the numbers from the "MIN" button.
5. Call 1-800-537-5140. This will get you to the GM unlock code automated line. Ignore the prompt and enter "202108#". Next enter your code (remember, HR then MIN) followed by the * key. For example, 1234*. A 3 or 4 digit code will be given to you. If you get a code such as 0532, drop the zero when entering it into your radio.
6. Enter the code into the radio IAW the applicable manual.
Posted on May 30, 2008
SOURCE: 95 CHEVY IMPALA SS RUNNIN HOT
You may want to try checking the fans. I have a 95 ss with the same problem. If you disconnect the MAF and then start the vehicle the electric fans will come on. Try driving it like that. That will atleast narrow down your search. If that makes it run cooler then its most likely a problem with the fans. Either a relay or fan switch. Blown head gaskets will usually result in the coolant and oil mixing. Check your fluids for signs of that. I have also read that the radiator cap not sealing properly can cause the coolant system to lose pressure. This reduces the systems ability to circulate the coolant causing it to run hotter. Thats an easy fix. I have not fixed mine yet. I just havent had time. That should be a good place to start. As far as getting a new engine or head gasket they are both really expensive fixes so try any other way u can to fix it first. Hope this helps.
Posted on Feb 27, 2009
Turn off the radio and turn the key to the on postion. push the bottom knob ( to turn the station). Hold it in intell the info comes on. in the window it will show all the things you can reset. using the arrows to the right of the knob find tire reset the push on the station knob. this will reset it. then go back to the arrows and find end. push on the knob one more time and you will be done.( you have to make sure the radio is off). I hope this helps.
Posted on Feb 28, 2009
SOURCE: 1996 chevy impala ss
the spark on your engine is controled by a componet called "opti-spark" it is located behind the water bump. it acts as your distribitor and ignition coil. they are a bit time consuming to change out and are very expensive! i would suggest having your local chevrolet dealer diagnose it just to be sure due to the expense involved for this unit. i hope this helps you..good luck
ps as i recall from my chevy dealership days, i beleive it was around $1000 installed..but that was a few years ago..proice could change either way now..
Posted on Jun 17, 2009
Posted on Nov 01, 2009
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