Question about 2005 GMC Yukon Xl Denali
Need more info. I noticed you also have a Q on here about your stability system.... Just as a guess... I'd say you have low power and a lit up dash " including the ABS light ". You need to check your ABS system first. A bad wheel speed sensor or hub bearing can cause all of this. The ECM sees it as one wheel locking up and reduces engine power and trips the Stabilitrac.
Posted on Jan 01, 2014
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Jul 12, 2017 | Buick Cars & Trucks
Jan 17, 2017 | Cars & Trucks
Limited throttle mode--The ECM will continue to use the accelerator pedal for throttle control, however, the maximum throttle opening is limited.
Throttle default mode--The ECM will turn OFF the throttle actuator motor and the throttle will return to the spring loaded default position.
Forced idle mode--The ECM will perform the following actions:
Limit engine speed to idle by positioning the throttle position, or by controlling the fuel and spark if the throttle is turned OFF
Ignore the accelerator pedal input
Engine shutdown mode--The ECM will disable fuel and de-energize the throttle actuator.
Did you have it checked for DTC's - diagnostic trouble code's related to the reduced engine power ?
All so has APP sensor gas pedal !
Accelerator Pedal Position (APP) Sensor
The accelerator pedal contains 2 individual accelerator pedal position (APP) sensors within the assembly. The APP sensors 1 and 2 are potentiometer type sensors each with 3 circuits:
A 5-volt reference circuit
A low reference circuit
A signal circuit
The APP sensors are used to determine the pedal angle. The engine control module (ECM) provides each APP sensor a 5-volt reference circuit and a low reference circuit. The APP sensors provide the ECM with signal voltage proportional to the pedal movement. The APP sensor 1 signal voltage at rest position is less than 1 volt and increases to more than 4 volts as the pedal is actuated. The APP sensor 2 signal voltage at rest position is less than 0.6 volt and increases to more than 2 volts as the pedal is actuated.
Your best bet is take your vehicle to the dealer !
May 03, 2016 | Cars & Trucks
Dec 21, 2015 | Cars & Trucks
Oct 28, 2015 | Cars & Trucks
Oct 16, 2014 | 2003 Mercury Mountaineer
Nov 26, 2011 | 2003 Chevrolet TrailBlazer
Feb 11, 2011 | 2003 Lincoln LS
Jul 03, 2009 | 2005 Pontiac Grand Prix
139 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: