Question about 2004 Chevrolet Impala

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Sporatic firing but wont start. was acting like water in gas i put new altenator and battery. seemed to make it worse. 2004 chevy impala ss.

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  • Chevrolet Master
  • 803 Answers

Check fuel pressure.

Posted on Feb 10, 2014

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Posted on Jan 02, 2017

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SOURCE: unlock antitheft code for 2004 chevy impala

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

  • 2 Answers

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

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  • 111 Answers

SOURCE: low tire pressure light is on all tire pressure is

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

  • 93 Answers

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

  • 58 Answers

SOURCE: how do you remove the old car battery on a 2008

  1. Disconnect the negative battery cable.
  2. Remove the right front diagonal brace. The brace goes from the rad support to the fender area.Three bolts need to be removed.
  3. Reposition the positive battery cable terminal cover (1).A red cover over the positive cable at the battery.It pops off.You may need a screw driver to pop it off.
  4. Loosen the positive battery cable terminal nut.
  5. Remove the positive battery cable terminal from the battery.
  6. Reposition the underhood accessory wiring junction block.See steps 9-14.
  7. Remove the battery retainer bolts (1) and retainer (2).
  8. With the aid of an assistant, remove the battery.
  9. Remove the electrical center cover (1).
  10. Disconnect the positive battery cable from junction box
  11. Remove the fasteners (1) securing the electrical center board (2).
  12. Unlock the tabs on the electrical center board.
  13. Lift up on the electrical center board.
  14. Remove the fasteners (1) securing the electrical center bracket (2) to vehicle.

Posted on Nov 01, 2009

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1 Answer

2005 chevy impala was running hot stopped put water in it now it wont start back motor turns over but wont start battery dead


Head gaskets blown or cracked head. It only takes 1 time of running hot to cause damage as the heads are aluminum and the blocks is iron.

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My 2003 chevy malibu cranks but wont start. battery is good and altenator is good


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The alternator does not come into play until the engine is running.
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My ss wont start. It has been sitting for six


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Dec 26, 2009 | 1996 Chevrolet Impala SS

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2004 Impala battery goes dead sporatically. battery changed, instrument cluster changed, trunk light changed, electrical system checked no problems found


try removing radio, ive had 3 impalas that drove me crazy! daignosing, they would drain the battery if car sat a weak,ending up being the radio shorting inside, dont know if thats your problem but i would start there, dont remove fuse have to remove the radio! hope this helps.

Nov 16, 2009 | 2004 Chevrolet Impala

1 Answer

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..

Jun 17, 2009 | 1996 Chevrolet Impala SS

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Heater core instructions for 04 Chevy Impala SS


Before you go thru that expense. If it is water leaking,check the evaporator. Sometimes it gets plugged with debris. So first, decide if it is water or anti-freeze. Also, I have taken the heater hoses off of the inside of the motor area and flushed the core out. It works on some.

Jun 01, 2009 | 2004 Chevrolet Impala

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