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I received 26 error codes during diagnostic test. My 2009 GMC sierra is missing bad and feels like the engine is going to kill. Check engine light is blinking, stability indicator says needs surface, and traction control indicator says it's off. Please advise

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It's misfilling could be anywhere from foul injectors, traction control abs light will come on when that happen

Posted on Nov 19, 2014


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Posted on Jan 02, 2017

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SOURCE: Check Engine light and traction control light stay

there is nothing to do here but have the dealer run a scanner test to see what trouble codes were set with the lights coming on, until then there is no way to tell what the problem might be as there are over 200 possibilities.

Posted on Jun 22, 2009

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SOURCE: abs light/traction control light

You can check out what the trouble code is by pushing and holding the information button and the up arrow (right side of instrument cluster above the radio) until all the instrument clusters light. Press the information button (last) to enter test mode. I've had an error C1234, meaning Left rear wheel sensor fault. I found the problem to be a corroded connector under the chasis just under the rear left door about 2 feet in. I had to by-pass (replace 1 wire due to corrosion at the connector.

Posted on Sep 15, 2009

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SOURCE: 2003 Bonneville SSEI

I am having the same problem and also occasionally the cruise just shuts off when I am driving on dry, straight roads. Code C1288 was cleared, but it continues to happen. I was told that the electric brake module needs to be reprogrammed and that it will cost about $80.00. They are still looking into it.

Posted on Nov 09, 2009

Testimonial: "Thanks for the info I'll have it checked out."

SOURCE: My 2001 TOYOTA SIENNA XLE is showing a P0420 code

Exhaust Converter-- (PO 420) -- may be melted inside and restricted

That causes the O2 Codes

You will need to find out why it failed ,and correct,
or it will fail again

You will need to replace all the O2 Sensors, also

The Traction,VSC and so on, are other problems,that have to be

Posted on Dec 21, 2010

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SOURCE: check engine light on, traction

there is a lot of questions here so i will start with the codes P0028 & P0026 both are verable valve timing codes first we should talk about how this system works, the engine is equiped with veriable valve lift units that when oil is pushed into the units they push on the camshaft, basicaly they roll the shafts in there saddles witch changes the lift and duration of the camshaft this is done to maxamise the performance of the engine, basickly alowes the engine to be tuned down at low RPM and load but when there is a demand for power the cames are advanced to give the engine more power. when we see these codes the mose common problem is the engine has not been serviced reguarly and their is gunk built up in the oil passages to the veriable valve units, most of the time changing the oil and adding some addative like marvel mistery oil will fix the problem, if not then you may have to replace the veriable valve lift units.

the skip under load might be the verable valve units advanceing one cam and not the other, this would cause a surge and maybe an engine miss fire, but i would change the spark plugs as will as the oil ( it never hurts to replace the plugs ) but make sure to use what the factory used don't chepen it up spend the few extra dollers to get the right plugs.

the check engine light is the verable valve units.

now the flashing cruse and the TCL these are most likely related, and you should be able to get a code from the BCM that will leed you down the right path, but best guess is a speed sensor is not working, all 4 wheel have to be within 1% of each other or the cruse will not work, and the TC wont work and probly the ABS.

its a lot of info but i hope this helps.

Posted on Mar 12, 2011

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