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I have a 2006 impala and the diagnostic code reads $7e8:engine and $7ea i started my car and it shook and a light came on that read reduced power to engine and service traction control

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Posted on Jan 02, 2017

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  • 462 Answers

SOURCE: Impala - trac off and ABS light along with service traction syst

THE PROBLEM IS WITH A HUB WHEEL SPEED SENSOR OR MORE LIKELY THE HARNESS LEADING TO THE HUB.

CHECK THE RESISTANCE AT THE HUB CONNECTION, IT SHOULD BE BETWEEN 900OHMS AND 1300OHMS. THEN SWITCH TO A-C VOLTAGE, IT SHOULD BE 100MV WHEN TURNING THE WHEEL BY HAND. IF BOTH CHECK OUT THE PROBLEM IS IN THE WIRING TO THE HUB.

THE RIGHT FRONT HUB USUALLY HAS A BEND, DOWNWARD THEN UPWARD NEAR THE CONNECTOR TO THE HUB. THAT IS WHERE THE PROBLEM USUALLY OCCURS.

NEW HARNESS WIRES CAN BE BOUGHT AT THE DEALER.

Posted on Jun 18, 2009

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SOURCE: Service Active Handling, ABS and Traction Control Lights on

I have had exactly the same problem on and off for 3 years now - and just solved it last week thanks to another computer site. Remove and disassemble both grounds from the top of both the left and right frame rails adjacent to the front corners of the engine block. Completely clean the green corrosion from the internal parts with fine sandpaper and add dielectric grease then re-assemble. Clean the mounting bolt and frame hole while you're at it. Sounds time consuming and difficult, but it ain't. No more than 45 minutes combined. I am a technical airhead so if I can do it so can you. What clued me in was the problem always occurred around wet or humid weather. Also, the clock would always lose time overnite. That has ceased also. Good luck. Anyone know why my left headlite, when deployed, vibrates and shimmys??? Sully ptsully@roadrunner.com

Posted on Jul 07, 2009

emissionwiz
  • 76649 Answers

SOURCE: my service traction control light keeps on going

there is a defective component in the system, almost for certain that is one of the four wheel speed sensors, have the system tested by any GM dealer to determine which one, or buy one new sensor and move it from wheel to wheel until the light goes out.

Posted on Feb 25, 2010

  • 1 Answer

SOURCE: engine power is reduced keeps showing on the dash

how do you fix the "reduced engine power" light on the dash bard of a 07 Chevy Impala LTZ and "Service Traction Control"?

Posted on Feb 27, 2010

  • 714 Answers

SOURCE: The "engine power is reduced" light comes on

po455 is Probable Cause[s]

1. Defective, loose or missing fuel cap
2. EVAP canister broke, hose cracked or not connected
3. Purge or vent solenoid defective
4 . Vacuum leak at engine po121 code po121 means Throttle Position Sensor/Switch A Circuit Range/Performance Problem . it is usually indicative of a faulty throttle position sensor or faulty wiring harness in the engine bay.

Posted on Feb 27, 2010

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1 Answer

What do 7E8 means


7E8 and 7E9 these are not codes what they are are system 7E8 is for the engine powertrain and 7E9 is for the transmission powertrain, go to the menu 7E8 if it list a DTC (diagnostic trouble code) select it, and it would read a P code such as P0XXX or P1XXX same

**Copied from AutoCodes.com

Sep 20, 2016 | Cars & Trucks

2 Answers

What do 7e8 and 7ea codes refer to?


Check out this link:

http://www.fixya.com/cars/t20321615-code_7e8_engine_2008_impala_mean

That should assist.

Jack

When you have this type of problem, check out Google, with the vehicle and problem code. Maybe you can learn to fix it yourself.

Feb 14, 2015 | 2007 Chevrolet Chevrolet Impala LT

2 Answers

2007 chevy impala codes coming up are 7e8 and 7ea. what do i look for


Seems to be a scanner component ID, not the OBD2 fault code.
You need to learn to use the scanner and interpret the readings (usually the scanner manual contains the meanings to these codes)

Otherwise you need to take the car to an independent service with Chevrolet specific scan tools or a Chevrolet dealer, for proper diagnostics.

Feb 14, 2015 | 2007 Chevrolet Chevrolet Impala LT

2 Answers

What does my check engine light trouble code $7e8 mean?


NO SUCH PROBLEM CODE! It will start with po or p.

Sep 01, 2014 | 2009 Chevrolet HHR 2.4

1 Answer

What do the codes $7EA and $7E8 on a 2007 Chevrolet Equinox?


no such codes, if a three number code it will start with po then the number. if a four digit code it will start with a p. good-day! GM codes,

Aug 27, 2014 | 2007 Chevrolet Equinox

2 Answers

I have a 2007 CHevy Impala 3.5 lt engine. The engine light came on and we checked the codes and the code came up $7E8 and $7EA. we believe these are generic codes and the $ could be optional


7E8, 7EA. Cat failure.
- Check the health of catalytic converter.
- Check for cracks in muffler.
- Check air leaks.
- Check back pressure of the tail pipe.

Apr 25, 2014 | 2007 Chevrolet Impala LS Sedan New Cars

1 Answer

2006 chevy impala traction control


Reduced power is a problem with electronic throttle contol . drive by wire . Do you know what this is ? Taking the vehicle an having it hooked up to diagnostic tool an checking for DTC'S - diagnostic trouble codes is always a first step when trying to find the root cause of any trouble light ! And not auto zone , pep boys , or advance auto parts . Thier diagnostic tool will not check codes in all system control modules .

Apr 15, 2017 | 2006 Chevrolet Impala

1 Answer

Check engine light is on and reads engine power is reduced


Hellow: Most likely you have a problem with the electronic throttle control. Get the codes read at auto zone or advance auto that will tell you for sure what is bringing the light on. They probably will not charge you to read the codes.

Jan 14, 2011 | 2006 Chevrolet Impala

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