Question about 2003 Chevrolet Impala

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Locating speed sensor to 2003 impala 3.8

Location of the speed sensor

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I am sending a picture. it is easy to see if you pull off the right front tire and remove the plastic trimLocating speed sensor to 2003 impala 3.8 - 10_30_2012_9_05_32_am.jpg

Posted on Oct 30, 2012

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Posted on Jan 02, 2017

CaptainKeyz
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SOURCE: 2003 chevy impala impala shakes when brakes applied

If it only happens when braking, then it is definately you brake system. Most likely you rotors and pads need replacement. If you can do car work, then this is not a difficult job, but requires some wrenches. The parts can be purchased a lot cheaper on-line. A shop will get you for $300-$800. I bought all my parts for my 2001 VW passat for $200 shipped to my door. Good Luck.

Posted on Jan 21, 2010

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SOURCE: Where and how many o2 sensor's on a 2003 chevy impala?

There are two sets of 02 sensors on most cars today. On set is set directly behind the header, one on each side, if it is a V engine. This set is used for the engine's ECU to control timing as well as other variables. The other set is placed on a bung in your Catalytic converter. This 02 sensor is used for emissions purposes only.

Posted on Jun 01, 2010

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SOURCE: 2002 chevy impala o2 location?

it is locared on the driver side on top of the transmision

Posted on Feb 27, 2009

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SOURCE: need to know location of coolant temp sensor in 2003 Impala

Need more info. I see from the location of your post that you have a 2002 Blazer. Do you mean a Trail Blazer? Chevy didn't make a Blazer in 2002. The ECT (engine coolant temperature sensor) is located on the driver's side, front of the engine. (on top) It is between the ECM (engine control module aka the engine computer) and the alternator. You will most likely need to remove the alternator and it's belt to obtain easy access to the sensor. If you need to remove the alternator for access, remember to disconnect the battery's negative terminal first. The sensor has a wiring harness with a connector mounted to the top of it. After you remove the electrical connector, the sensor will screw out using a deep socket and ratchet. You will loose some coolant (antifreeze) during the change, so make sure you have some DexCool antifreeze on hand.
Charlie

Posted on Mar 04, 2009

  • 335 Answers

SOURCE: 2000 impala crash sensor location?

You have more than one. Which one needs replacing and why?

Posted on Jun 11, 2009

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1 Answer

Vehicle speed sensor


The actual vehicle speed sensor is transmission mounted on these. However if you are looking for the abs speed sensor, these are made right into the wheel bearing hub assemblies on gm W bodies which include this model. Unfortunately you can't replace just the abs sensor on these without replacing the whole hub. A word of advice. I work in the field and if you do replace the hub just for an abs problem, don't skimp on the price. The cheap hub assemblies go out within a year and you will just have wheel bearing problems then.

Mar 09, 2013 | 2002 Chevrolet Impala

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Locating of speed sensor to 2002 3.4 chevy impala


It should be in the side of the transmission.

Jan 23, 2013 | 2003 Chevrolet Impala

1 Answer

Replaced my vehicle speed sensor on my 2003 impala and the ****** wont shift and the speedo wont work is there a reset needed on the ecm to relearn the new sensor


Not that I know of. You replaced the speed sensor on the transaxle ?
Is it possible you got the wrong sensor or the gear in the transaxle is damaged ?

Aug 14, 2012 | 2003 Chevrolet Impala

1 Answer

Where is the location of the drain plug for a radiator on a 2006 chevy impala


locating of the radiator drain plug, as well. You access it from inside the engine compartment. It is on the lower left-hand (drivers side) inner corner of the radiator. There are 3 different small hoses running directly in front of the drain plug, which makes it difficult to see. Good luck!

Nov 05, 2011 | 2006 Chevrolet Impala

3 Answers

I am trying to locate the Oxygen Sensor on my 2003 Impala?


Chevrolet Impala comes equipped with two oxygen sensors, one on either side of the catalytic converter. Locating the sensors is as simple as crawling under the vehicle.

  1. Location
    • The bank 1, sensor 2 oxygen sensor is located downstream of the catalytic converter. To get to the sensor, crawl underneath the vehicle and trace the exhaust pipe until you reach the catalytic converter. Continue to follow the exhaust pipe until you reach the bank 1, sensor 2 oxygen sensor.

    Identification
    • You should be able to identify the oxygen sensor as a single wire about 3 to 6 inches long. The oxygen sensor is mounted to the exhaust pipe and should slightly protrude from the pipe.

    Function
    • The oxygen sensor is an important part of the vehicle exhaust system. The sensor tests the amount of air in the exhaust stream. It then sends this information to the engine control computer, which determines how much fuel is necessary to maintain a proper air-to-fuel ratio.


If this free advice was helpful, a vote with the thumbs up would be greatly appreciated.
Thanks

Aug 25, 2011 | 2006 Chevrolet Impala

1 Answer

When I press the gas, it reves, but then sputters and jakes. I push the gas on the highway, and it won't speed up. It's like it has a mind of it's own, and will sooner or later give me speed, but then I...


If you have a check engine light on, you'll need to get the ODBII code to have a clue of the problem. If there is no code, I would start with changing the plugs and plug wires. Next I would try cleaning or replacing the MAF sensor. The MAF sensor is located on the throttle body. Here is a picture of my 2002 Impala 3.8L MAF sensor (ignore the radiator and hose):

c184b27.jpg

Jun 15, 2010 | 2003 Chevrolet Impala

1 Answer

The abs and trac lights stay on when the engine is running. how do I fix the problem ?


Something as simple as a different tire size can cause the abs to go nuts. I even had it where the two tires were the same size. But a different brand name. Each manufacture has their own tire sizing so not all tires a equal in size. Even though it says on the side of the tire that they are the same size.

Sometimes the cooper inside the insulation of the wires going to the sensors corrodes. Especially on the front units. It reads more ohms than normal but not open and is very intermittent. However moving the wires my make it work for a while. That's why replacing bearings seems to fix the problem but it comes back after a while.

You can test the speed sensors yourself...
Front sensor specs:
956 to 1240 ohms in 41 to 110 degree weather
at least 100mV AC (NOT DC!) volts when hub is spun by hand
Rear sensor specs:
950 to 1300 ohms in 41 to 110 degree weather
At least 100mV AC (NOT DC!) volts when hub is spun by hand

Here is some information from service bulletins that could be related to the problem. The traction control, antilock brakes, and tire inflation monitor all use wheel speed sensor input.

This first bulletin seems like it could be the problem because engine movement is involved:

GM Corporate Bulletin 00-06-04-049B
This Bulletin covers a problem that can cause multiple failures, one of which is an Antilock brake problem, and covers 2000-2003 Impala and Monte Carlo built prior to 2/03.
Check to make sure the wiring harness adjacent to the AC accumulator/dryer is not rubbing against the ac accumulator chaffing through the insulation of the wires in the harness.

GM Corporate Bulletin 03-05-25-008 overview:
GM front wheel speed sensor harness replacement - 2001-2003 Buick Century, Regal; 2001-2003 Chevrolet Impala, Monte Carlo; 2001-2002 Oldsmobile Intrigue; 2001-2004 Pontiac Grand Prix
This bulletin is about inspecting the harness going to the front wheel speed sensor for wear from contact with front suspension parts.
Repair harnesses/leads are available that can be spiced onto the main harness.
2001-2003 impala & Monte Carlo – Right side - 10340313
2001-2003 impala & Monte Carlo – Left side - 10340314

SERVICE BRAKES, HYDRAULIC:ANTILOCK:ABS WARNING LIGHT
• TSB #030525008 -- INTERMITTENT/CONSTANT ANTI-LOCK BRAKING SYSTEM (ABS) MALFUNCTION INDICATOR LAMP (MIL) ILLUMINATED. *TT (NHTSA ID #10004719, OCTOBER 01 2003)

Hope helped.

Nov 05, 2009 | 2001 Chrysler Concorde

1 Answer

Location of speed sensor for a 2003 dodge durango


the speed sensor for this vehicle is actually in the rear differential of the vehicle. this is the sensor that runs the speedometer also known as the vehicle speed sensor. there are also two speed sensors in the front one on each wheel known as wheel speed sensors these are for the abs system only

May 17, 2009 | 2000 Dodge Durango

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