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08 gmc Sierra 1500 5.3 stabilitrak lights is on and traction controll keeps flashing with the check engine light. Rand the codes and it said cylinder 6 misfire. Determined the coil went dab replaced it and all the plugs and wires still same issue and still running rough and shifting rough

Posted by Anonymous on

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 99 Answers

SOURCE: Check engine light comes on. p0171 and p0351 codes found

From Lusty Kid:

I know the economy is bad, but change all of the plugs. Check your PCV Valve hose, 150 rottens them out allowing air to be sucked in, thus all kinds of codes.

Depending on mileage. Dismount the EGR valve and clean passages. If you are really good dismount the throtle position sensor body and clean out passages with Choke Cleaner., dismount where the EGR valves connects to the engine, clean out passages. Also check the hose thats behind this mounting to ensure is not clogged. If clogged clean it out. If not replace it. Is about 1.5 ft. long, connects to the PCV Valve Hose.

When is the last time you change your harness. Can't remember??? Replace it. Good Luck

Posted on Dec 26, 2008

  • 180 Answers

SOURCE: cylinder 6 misfire when scanned, check engine light on

May be a hyd. lifter problem, should check compession and that should lead you in right direction, let me know if I can help.

Posted on Feb 26, 2009

Molson02536
  • 3854 Answers

SOURCE: Check engine light

A multi misfire may mean that one or more of the following has happened:
Faulty spark plug or wires, Faulty coil (pack), Faulty oxygen sensor(s), Faulty fuel injector(s), Stuck/blocked EGR valve / passages, Faulty camshaft position sensor, Defective computer.

The engine is stumbling or hesitating, check all wiring and connectors that lead to the cylinders (i.e. spark plugs). Depending on how long the ignition components have been in the car, it may be a good idea to replace them as part of your regular maintenance schedule. I would suggest spark plugs, spark plug wire, distributor cap, and rotor (if applicable). Otherwise, check the coils (a.k.a. coil packs). In some cases, the the problems were faulty fuel injectors. 

Random misfires that jump around from one cylinder to another (read: P030x codes) also will set a P0300 code. The underlying cause is often a lean fuel condition, which may be due to a vacuum leak in the intake manifold or unmetered air getting past the airflow sensor, or an EGR valve that is stuck open.

Good luck and hope this information helps, keep me posted, be glad to help you get the truck running 100% again. Not sure if your running a K&N air filter, and if you are there may be a flim of oil on the MAF sensor that is making you run lean. You may want to spray down the MAF sensor with a can of MAF cleaner. 

Posted on Jul 02, 2009

SOURCE: Car coded yesterday p0303 noe check engine light flashing

The only thing left is the injector or a vacuum leak on the manifold gasket sucking air in and causing a lean condition. Thats is its the only common issue providing you dont have a head gasket issue leaking coolant on that cylinder and the compression and valves are not leaking. The old spark plug should show a coolant issue if present. The white part will be shiney if you have a coolant loss. If the coolant is looking real dark you should have the cooling system checked for gas being pushed into the cooling system on compression stroke thru the head gasket.

Posted on Nov 12, 2009

91RSCamaro
  • 59 Answers

SOURCE: 2008 GMC Sierra 1500 50,644 miles check

This problem seems to be the ECM (computer) to have so many things acting up at the same time. Did it all start at the same time? Its possible that you can reset the ECM by removing the hot and ground cables, wait about 15 minutes and then replace them, may fix the problem, may only temporarily fix the problem if the ecm is bad or something is setting a code to cause this. It sounds as if it is running in limp mode. Have it tested at the nearest parts store. They should be able to decipher the problem.

Posted on Sep 14, 2011

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I have a 2009 Chevy Silverado 1500 2wd pickup. The check engine light along with the service stabilitrak and traction control lights also came on. It runs rough at idle or low speed. Where do I start?


Have it check for DTC'S - diagnostic trouble codes . If the check engine light starts flashing , park it . The flashing check engine light is telling you there is a catalytic converter damaging miss fire happening . An they can be damaged very easy .

May 17, 2017 | Cars & Trucks

1 Answer

I had a problem with power steering leak . They changed the hoses and pump and reservoir and rack. Now I have stabilitytrac control light on and when you are stopped you can't turn the steering wheel.


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Has anyone ever had the service stabilitrak, service traction ...



Dec 05, 2015 | Cars & Trucks

1 Answer

I keep getting a message service stabilitrak


StabiliTrak Indicator Light: If the warning light does not come on then, have it fixed so it will be ready to warn you if there is a problem. If it stays on, or comes on when you are driving, there may be a problem with your StabiliTrak system and your vehicle may need service. When this warning light is on, the system is off and will not limit wheel spin. Adjust your driving accordingly.

This light will also flash when the StabiliTrak system is active. If the StabiliTrak system warning light comes on and stays on for an extended period of time when the system is turned on, your vehicle needs service.

The traction control part of StabiliTrak can be turned off by pressing and releasing the StabiliTrak button if both systems (traction control and StabiliTrak) were previously on. To disable both traction control and StabiliTrak, press and hold the button for five seconds.

Traction control and StabiliTrak can be turned on by pressing and releasing the StabiliTrak button if not automatically shut off for any other reason.

When the TCS or StabiliTrak system is turned off, the StabiliTrak light and the appropriate TCS off or StabiliTrak off message will be displayed on the DIC to warn the driver. Your vehicle will still have brake-traction control when traction control is off, but will not be able to use the engine speed management system.

If the StabiliTrak and/or Traction Control are not operating properly, I encourage you to take your vehicle in for inspection. A certified technician will be able to offer a more accurate diagnosis.

Apr 29, 2015 | Cars & Trucks

1 Answer

Trying to find the location of the stabilitrak sensor on a 2011 sierra 2500hd 4wd


Abs light on normally its one of the wheel bearing in the front abs sensor are in the bearing you got to pass a scanner on the truck to find wish one is difective

Apr 04, 2015 | 2011 GMC Sierra 2500HD

1 Answer

How fix my gmc sierra 2008 of the stabilitrak light


Scan the codes and post them here, i will run them and let you know what the problem could be. fuse, ground, wheel speed sensor, aftermarket or wrong size wheels or tires abs module etc

Feb 24, 2015 | 2008 GMC Sierra 1500

1 Answer

Pickup shakes shows stablitrak is off


Wow. Well the plugs should have been changed about 75k back.
The stabiltrak light is on because the check engine light is coming on, because of the miss.
The stabilitrak control uses the engine and ABS to keep the truck on the road, so if one of the other systems is disabled it is too.
I would change the plugs and see if the engine performance can be fixed first.

Sep 28, 2012 | 2008 GMC Sierra 1500 2WD

2 Answers

2008 GMC Sierra 1500 50,644 miles check engine light is on stabilli track warning light is on traction control warning light is on engine runs rough and wont idle transmission shifts hard


This problem seems to be the ECM (computer) to have so many things acting up at the same time. Did it all start at the same time? Its possible that you can reset the ECM by removing the hot and ground cables, wait about 15 minutes and then replace them, may fix the problem, may only temporarily fix the problem if the ecm is bad or something is setting a code to cause this. It sounds as if it is running in limp mode. Have it tested at the nearest parts store. They should be able to decipher the problem.

Sep 14, 2011 | 2008 GMC Sierra 1500

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