Question about 2002 Chevrolet Impala

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How do I turn the Check Engine light off on my 2002 Chevy Impala?

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To reset it just disconnect the battery negative cable for 5 minutes

Posted on May 05, 2010

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  • 3 Answers

Take it to your local auto store and they can check the car computer and tell you why it's on for free. You might need oil in the car. Also check for water leaks from the bad valve cover gasket they used. Look for water leaks in front of the engine also.

Posted on May 11, 2010

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Posted on Jan 02, 2017

briang9000
  • 37 Answers

SOURCE: 2002 CHEVY S-10 CHECK ENGINE LIGHT

YOU NEED TO HAVE SOMEONE READ THE CODES. SOME PARTS HOUSES (ADVANCE AUTO AND AUTO ZONE) WILL DO THIS FREE OF CHARGE. ONCE THEY TELL YOU WHAT THE CODES ARE YOU WILL HAVE TO FIX THAT PROBLEM BEFORE THE LIGHT STAYS OUT. YOU CAN RESET IT BY DISCONNECTING THE BATTERY FOR A COUPLE MINUTES, BUT THE LIGHT WILL KEEP COMING BACK ON UNTIL THE VECHILE IS REPAIRED

Posted on Dec 14, 2008

  • 4 Answers

SOURCE: Have a 2003 Chevy Impala. Check engine light

Bank 1 is the rear O2 sensor, but experience says to change both. The front one is right behind the engine in the middle of the engine compartment. The rear O2 sensor is on the top of the exhaust pipe, just behind the catalytic converter. But the same code that shows it is the O2 sensor (which is P0420), is the same code for the catalytic converter, or a vacuum leak. Make sure if you do change the catalytic converter, ensure that the new one is OBD-2 compliant. And the vacuum leak could possibly come from the manifold gasket. Let me know what the problem was!

Posted on Mar 26, 2009

yankstorm02
  • 145 Answers

SOURCE: check engine light on

You cannot reset the check engine light any other way than using a scan tool. Some auto parts stores will scan the vehicle for free then at least you will know the area of the fault.

Posted on May 07, 2009

  • 10 Answers

SOURCE: How do I reset my check engine light myself

On most cars you can reset the check engine light by disconnecting the computer from it's power source. Disconnect one of the terminals on your battery. The negative terminal is usually suggested but I've never noticed a difference between the two. When you reconnect it and start it up, the light should be gone until the computer comes across another problem.

Posted on Aug 08, 2009

johnjohn2
  • 5763 Answers

SOURCE: Chevy Impala 2001 w/ 3.8L engine - EGR stuck open

there are a couple of things, first make sure there are not restriction in the exhaust, i know the dealer has had to replace converters under warranty because of this problem, then theres a reflesh program for the computer due to this problem, and lastly,run with egr off make sure it clean of carbon,carbon gets stuck in pintle sets check eng lightbut carbon then blows by so when you remove egr you see nothing, well start with these good luck.

Posted on Nov 28, 2009

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1 Answer

I have a 2002 Chevy impala, and the "check engine light" is on. How do I determine the problem?? This light has come on before but it cleared after a few starts. Can you help me out??


You have a intermittent problem. Go to autozone or similar and have it scanned for codes this is free. The reason light went out is problem went away but came back.

Feb 01, 2017 | 2002 Chevrolet Impala

1 Answer

I have a 2002 chevy impala I changed the 02 sensor and my check engine light is still on and reading the same 02 sensor


You should have a primary and secondary O2 sensor, upstream and downstream. Pre-Catalytic converter and Post-Catalytic converter.
Which one did you replace?

Mar 18, 2015 | 2002 Chevrolet Impala

1 Answer

How do I reset the change oil light on 2002 chevy impala


Turn key on ,,,hit brake pedal 3 times with in 5 seconds,,, thats how you do it on chevy trucks,, so maybe it will work for you

Feb 01, 2015 | 2002 Chevrolet Impala

1 Answer

Impala o2 sensor


1. Reduced fuel economy
2. Increased exhaust emissions
3. Poor engine performance
4. Engine check light appears
5. Engine stalls during idling
6. A rotten egg odour emitting from the exhaust
7. Your engine surges or hesitates
8. Rich mixture

Jun 03, 2013 | Cars & Trucks

1 Answer

On a 2002 chevy impala with a 3.4 engine. iget code po303.


replace all wires and plugs with ac delco parts only iradium plugs only!!

Nov 17, 2009 | 2002 Chevrolet Impala

1 Answer

I have a 02 chevy impala that sometimes wont turn on.


Anti theft problem Ignition lock cylinder or Body control module

Jun 27, 2009 | 2002 Chevrolet Impala

1 Answer

How do I reset the check engine light?


disconnect the battery for 10min and the try it

Jun 03, 2009 | 2002 Chevrolet Impala

1 Answer

2002 Chevy Impala Sensor # 3


You didn't give the engine size, so I'll give what my manual shows.
The 3.4L engine----- 2nd one in from the left, in back of the engine.
The 3.8L engine------2nd one in from the left, in front of the engine.

Mar 12, 2009 | 2002 Chevrolet Impala

3 Answers

Cruise control won't turn off


whats odd is my chevy impala 2002 is doing the same.. did u ever fix it

Dec 06, 2008 | 2002 Chevrolet Impala

1 Answer

Check engine light


you need to go to an electronic specialist or you can buy one of the scanners that clears the codes for you from advanced auto or autozone or some place like that.

Jul 29, 2008 | 2002 Chevrolet Impala

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