Question about 2010 GMC Sierra 1500 Hybrid
I have a 2010 GMC Siera Hybrid that is having issues with the stability trap warning light coming on and beeping. It also causes the power to drop off to idle. I tried to seek out other help, and found a possible recall, but there is none for my vehicle according to GMC. I also found that the TPS may be causing the issue, but I replaced it and still have the problem. Any other help would be greatly appreciated.
You DO NOT replace any parts based on any OBD Code
Codes are used to diagnose vehicle systems with a fault
You have to component test to find problems
No testing,no failed parts, no parts are needed
Have to find a problem
That takes professional tools & lots of OBD 2 Knowledge
Posted on Nov 08, 2014
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Posted on Jan 02, 2017
Unfortunately sounds like you have the electrical "find me if you can" nightmare.
But first did you purchase a map sensor from the dealer or was it after market....I know once you buy it you own it, if it was after market and "if" its defective, that just makes your hunt sicker, something similiar happened to me a few times with relays after market what a night mare!!
Things develop into a stage right now of an hourly labor hunt which can be very costly but lets start with the aftermarket theory and see if that straightens things out, also did you give it your best to see if you have a major type vacumn leak somewhere around the intake?
Check for a carboned and or stuck pintle in the IAC Motor(Idle Air Control Motor) these have direct influence on erratic idle and stumbling as they dont change off lean/rich mixture and the injectors are stuck sensing one spray pattern being either rich or lean.
Did this happen after you filled up? Perhaps you have contaminated fuel in the injectors/tank fuel filter?
Last but not least look over the condition of the EGR Valve(Exhaust Gas Recirculation Valve) if that is off its seat due to carboization a bad engine idle etc. will occur.
Sorry about all the questions and other info I sent ya just want you to be aware of other possibilities, I been there and chased down the wrong road just to find an obvious defective part or after analysing the fuel found it to be a simple contamination problem that required a tank/line/injector flush and a new filter.
Posted on Jun 08, 2010
SOURCE: 2004 GMC Envoy XL Loss of power
I also have an '04 Envoy XL. The problem we had was very similar. The truck lost power and the wife and kids were stuck on the interstate. It was the catalytic converter totally clogged. We were told by our trusted mechanic that we were lucky not to have blown a head gasket from the back pressure. Two days after having the converter replaced the check engine light came on. I went to Autozone to have the codes read. I don't remember the code number but it was basically that the thermostat was stuck open and the engine was running too cool causing it to run rich and clog the converter. I did not get a light until after and the light went out on it's own. I hope this helps you. GOOD LUCK!
Posted on Jul 07, 2008
About 45% of all transmission problems are due to a defective battery, its components and the charging system. Make sure you have the correct battery in the vehicle and inspect all items relating to the charging system and the battery. The vehicle should charge between 13,5 to 14.5 volts. The condition of the belts is part of this inspection. If all of this is A-ok then get a scanner and pull the codes in the PCM.
Remember once light is illuminated for a item that item no longer works. Once you've gotton to this point let me know and I'll walk you threw it. Hopefully its just a weak or incorrect battery or something along those lines. Good luck and keep me posted
Posted on Mar 09, 2010
SOURCE: P0101 p0171 p0174 engine codes
Those are lean codes and a MAF (P0101) code. Make sure the MAF sensor is plugged in, and there are no leaks/ loose hoses between the air filter and the engine. You may have a vac leak at the intake also, but check these first, If all appears OK a repair shop will need to check it out for you.
Posted on Dec 16, 2009
drive shaft coupling ,check the rubber boot hasnt isnt split letting the dirt in as it sounds like it.better off with a real car like a jag
Posted on Nov 13, 2008
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