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Old 06-11-2016, 11:08 PM   #1
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Default Abs/trace and service stabilitrak

It'* been on for a while it will come on and off. Sometimes if I step on the accelerator the Trac control active message will come on and cut power to the wheels for a few second let off the accelerator and the abs/Trac and traction control message will go off. I don't no maybe a faulty sensor or wire in the hub bearing I don't no I change the passenger side in the beginning of the year. And also under hard acceleration my truck cuts power of dosent stall just no power until I step on the brakes and then a few second later the power comes back . Ive been reading a lot and it could be anything from the fuel pump to the fuel pressure regulator maybe sparkplugs and wires I don't no where to begin and there'* no check lights. Any thoughts
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Old 06-11-2016, 11:35 PM   #2
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If met with your situation, I would also suspect the abs/traction system is to blame, and I would address that issue first before trying to address any further drive-ability concerns. I also suspect it'* likely one of the wheel speed sensors, however the readings are not erratic enough for the system to recognize a fault. The only way to diagnose it presently that I am aware of is to have a tech ride shotgun with a scanner plugged in to determine the reason for the system activation.

Unless you wait long enough for the problem to worsen enough to set a code, which will need more than a basic code-reader to pull.
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Old 06-12-2016, 12:34 AM   #3
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Ok well I guess I'm have to take it in and since I'm having this issue with my abs/Trac will that cause engine to cut power since there'* an issue with the abs system
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Old 06-12-2016, 06:36 AM   #4
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It could. One of the ways the system reduces wheelspin is by pulling power. I wouldn't know if your case is caused by it without looking at the truck but with known issues you may as well address those first and then see where you stand
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Old 06-12-2016, 05:19 PM   #5
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Funny thing today I was checking the motor and something told me to check the battery cables come to find out both beg and positive where lose so I tighten them up turn the truck on an no abs/Trac light have to wait and see if it will come back on
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Old 06-12-2016, 05:29 PM   #6
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Default drivability issue

When I step hard on the accelerator sometimes the truck cuts power and I have to slow it done and then power picks up. It dosent stall though which I find weird. What can cause this issue.
Can a fuel pressure regulator cause this and should I replace it or maybe the spark plugs. There is no check light.

And also for over a year I have this hesitation when the trans changes gear and there'* a slight Rev when gear changes if it was the trans it been toasted by now for sure and also when it'* 90 and above before my trans temp would read 150 degrees now after a lil while it reaches 200 degrees. Should I drain the trans fluid and change the trans pan or just leave it because the fluid looks light dirty brown. Any thoughts
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Old 06-18-2016, 11:02 PM   #7
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Default engine cuts power but doesn't stall

I'm puzzled when I drive my truck and under hard acceleration my truck would cut power but not stall basically when it cuts power I have to come to a complete stop then it will have power. There'* no check light the only light I have on is my abs/ traction light which comes on and off at random times but mostly stays on. Could that be what'* causing my truck to act the way it is or could it be fuel related. I have changed my plugs or wires since I had the truck should I try and see if that fixes it.
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Old 06-19-2016, 12:08 AM   #8
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As I said in your previous thread that you created for this very issue, GM has been known to pull power by various means when wheelspin is detected. With your intermittant ABS/Trac lights, I feel it would be best to either diagnose, or disable it and see where you stand.
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Old 06-19-2016, 03:08 AM   #9
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Thanks Randall..Yes for less confusion, Let'* only have one thread open please.
I have now merged post 7 & 8 into the previous thread, carry on..
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