What happens when you reduce engine power on a GMC Yukon?
When the engine power has been reduced, the engine and transmission can operate in totally different ways. This leads to jerky shifts, unstable acceleration, and horrible gas mileage. Good luck diagnosing your Yukon’s reduced engine power light. If there is anything that you would like to add, please feel free to leave a comment below.
What does it mean when GM says reduced engine power?
In some instances, the PCM may actually cut off fuel delivery to the engine, rendering the vehicle undrivable. When this happens, GM’s Engine Reduced Power Mode is being implemented as a “fail-safe” mode (also known as a “limp” mode).
When did my 2006 Yukon lose all power?
I purchased my 2006 Yukon last September 2005. I now have 24,000 miles on it. Over the last month I have had it into the dealer three times for the same problem. The problem is that while driving the vehicle it will suddenly lose almost all power.
What should the fuel pressure be on a GMC Yukon?
Bonddog, I would suggest that a fuel pressure test be performed using a know good fuel pressure gauge should have 60psi minimum (critical) with the key being cycled on, pump is purchased as a complete module assembly very expensive and fuel filter should be performed when replacing the pump.
When the engine power has been reduced, the engine and transmission can operate in totally different ways. This leads to jerky shifts, unstable acceleration, and horrible gas mileage. Good luck diagnosing your Yukon’s reduced engine power light. If there is anything that you would like to add, please feel free to leave a comment below.
In some instances, the PCM may actually cut off fuel delivery to the engine, rendering the vehicle undrivable. When this happens, GM’s Engine Reduced Power Mode is being implemented as a “fail-safe” mode (also known as a “limp” mode).
I purchased my 2006 Yukon last September 2005. I now have 24,000 miles on it. Over the last month I have had it into the dealer three times for the same problem. The problem is that while driving the vehicle it will suddenly lose almost all power.
Bonddog, I would suggest that a fuel pressure test be performed using a know good fuel pressure gauge should have 60psi minimum (critical) with the key being cycled on, pump is purchased as a complete module assembly very expensive and fuel filter should be performed when replacing the pump.
What to do when your brake master cylinder is replaced?
If the vehicle has ABS, here’s the bleeding procedure when the brake master cylinder is replaced. When using pressure equipment, use a special tool to depress the metering plunger on the combination valve. Gravity and vacuum bleeding are not recommended for this system.
What’s the best way to bleed a rear brake?
The most common bleeding procedure is to bleed the brake furthest from the master cylinder first, then bleed the other brake that shares the same hydraulic circuit (which may be the other rear brake on a rear-wheel drive car or truck, or the opposite front brake on a front-wheel drive car or minivan).
How can I get my brakes to lock up again?
First check that the brake pedal returns all the way to the top. You should feel a bit of closeness at the top at rest. This is the free play between the pedal push rod and the master cylinder piston. The master cylinder needs this clearance to allow the brake fluid to return to the reservoir.
Why does my Yukon have a park assist warning light?
• The object alarm sensors are disrupted by vibrations, like those caused by a large nearby vehicle or from heavy equipment such as a jackhammer. My 2007 Yukon has a problem with the park assist sensors. When I go in reverse sometimes, the warning beep repeats quickly and the lights flash like crazy but nothing is behind the vehicle.
What is the throttle position sensor on a GMC Yukon?
The throttle position sensor is one of the most vital sensors in your Yukon. If it’s not responding, the ECU has no way of telling how much gas gas you’ve given it. The TPS data also helps determine when the transmission will shift.
What happens when the ignition coil does not work?
NOTE: When the ignition coil or the ICM start to fail, they don’t always cause a cranks but does NOT start condition, since sometimes these components can fail intermittently. In this scenario, your vehicle will start and run most of the time, but every now and then it won’t.
Can a bad cop coil cause a misfire?
So if your GM pick up or SUV or van is suffering a misfire condition due to a bad COP ignition coil, this is the article for you. Also, all tests are ON CAR tests and done without a scan tool. You can find a complete listing of GM vehicles that this info/tests apply to in the Applies To: box in the right column of this page.
How to test GM coil on plug ignition coils?
Testing the GM Coil-On-Plug ignition coils on your pick up truck or SUV is pretty simple and this article will show you just how to do it. Every step is explained in plain English and with photos to guide you every step of the way.
Which is the best ignition coil pack for a Yukon Denali?
Fit perfect in my 2007 GMC yukon Denali. Noticed less idle, better acceleration in truck and the engine turns right over now when before it would misfire. Less smoke from exhaust pipe. Highly recommend these.
Is there a warranty on a GMC ignition coil pack?
While this is not a genuine factory ignition coil pack it is made to exceed the factory quality of the ignition coil on your Cadillac, Chevrolet, GMC, Pontiac, or Saab 5.3 or 6.0L V8. 2 year or 24,000 mile warranty.
What happens if your ignition coil pack fails?
Over time the factory ignition coil packs can fail leading to poor gas mileage, hesitation, and a check engine light (CEL). Replace your faulty ignition coil and restore performance and driveability on your vehicle.
Testing the GM Coil-On-Plug ignition coils on your pick up truck or SUV is pretty simple and this article will show you just how to do it. Every step is explained in plain English and with photos to guide you every step of the way.
The throttle position sensor is one of the most vital sensors in your Yukon. If it’s not responding, the ECU has no way of telling how much gas gas you’ve given it. The TPS data also helps determine when the transmission will shift.
What are the changes to the GMC Yukon Denali?
In 2009, minor changes were made to the Yukon Denali. These changes include 403HP instead of 380HP, Cooled and perforated leather seats (optional), Bluetooth Handsfree calling standard, and flat chrome insert/body colored bodyside moldings. Also a power tilt steering wheel is now standard.
How many Yukon Denali’s are there in the world?
GMC Denali. The Yukon Denali line typically represents 40% of Yukon sales in both units and dollars. In 2013 it sold more than 75,558 units of the Denali brand, which accounted for 20% of GMC’s sales, making it one of GM’s most successful sub-brands, all done without any advertising or promotion whatsoever.
Why is the Yukon Denali a status symbol?
The Denali nameplate is often used as an insignia or status symbol, and in particular is popular as a less costly alternative to the Cadillac Escalade. The Yukon Denali line typically represents 40% of Yukon sales in both units and dollars.
Why does my GMC Sierra have a reduced engine power warning?
Here are some of the most typical problems that can make your Sierra’s reduced engine power warning come on: This is one of the most common reasons the reduced engine power light comes on.
Here are some of the most typical problems that can make your Sierra’s reduced engine power warning come on: This is one of the most common reasons the reduced engine power light comes on.
Where did the 2003 GMC Yukon come from?
1st owner purchased on 09/25/03 and owned in CT until 01/20/05 • 2nd owner purchased on 03/24/05 and owned in CT until 10/11/07 • 3rd owner purchased on 02/07/08 and owned in VA until 01/18/21. 1st owner drove an estimated 10,353 miles/year • 2nd owner drove an estimated 0 miles/year • 3rd owner drove an estimated 13,671 miles/year.
How many miles does a GMC Yukon drive?
1st owner purchased on 05/09/03 and owned in CA until 03/03/14 • 2nd owner purchased on 03/03/14 and owned in CA until 06/06/21. 1st owner drove an estimated 7,196 miles/year • 2nd owner drove an estimated 5,711 miles/year.
When does GMC Yukon engine hesitate during acceleration inspection?
GMC Yukon Engine hesitates during acceleration Inspection at your home or office. Our certified mobile mechanics come to you 7 days a week between 7 AM and 9 PM.
Why does my Toyota Tacoma hesitate to accelerate?
If this mixture is thrown off in any way, it may result in an engine running too lean (not enough air), or too rich (not enough fuel). An engine that is hesitating to accelerate is most likely dealing with a fuel/air mixture that is too lean.
What should I do if my GMC climate control does not work?
After starting none of the GMC climate control functions should be used for two minutes. If this does not work the actuators should be removed to see if the temperature door shafts can be turned by hand to provide heat on the driver’s side. If this produces results, the actuators will need replacement.
Why does my GMC air conditioner not shut off?
The air conditioner fan on a 2003 Denali fitted with auto GMC climate control will not shut off even with the ignition off and the key out. What is the reason and what can be done to fix it? GMC has issued a recall for fans that will not shut off.
Are there any GM trucks that are not working?
Drivers of popular General Motors vehicles nationwide say they are in a fix: the A/C in their newer-model trucks is not working, and repair parts are nowhere in sight. Among the vehicles affected: Chevrolet Silverado, Tahoe and Suburban; GMC Sierra, Yukon and Yukon XL; and Cadillac Escalade and Escalade ESV.
When to replace the GMC climate control system?
If it is damaged, it needs to be replaced. The GMC climate control is an integral part of a comfortable driving experience and when it is defective the discomfort felt by the driver can affect his or her driving skills. For this reason problems with the climate control should be attended to without delay.
Are there any recalls on the 2016 GMC Yukon?
Based on information received from our latest subscriber survey, our reliability history charts give you a rundown on how used vehicles are holding up in 17 potential trouble spots, ranging from the engine, transmission, and brakes to power equipment and the electrical system. The 2016 GMC Yukon has been recalled 5 times by NHTSA. View Recalls
The air conditioner fan on a 2003 Denali fitted with auto GMC climate control will not shut off even with the ignition off and the key out. What is the reason and what can be done to fix it? GMC has issued a recall for fans that will not shut off.
What is the reliability score of the GMC Yukon?
The Reliability score is based on our latest subscriber survey of 2016 GMC Yukon owners. The owner comments describe problems respondents experienced with this vehicle.
Where is the power lumbar control on a GMC Yukon?
1-5 Power Lumbar Control (If Equipped) If your vehicle has this feature, the four-way control is located on the outboard side of the seat. To increase or decrease support, press and hold the front or rear of the control. Let go of the control when the lower seatback reaches the desired level of support.
Where is the tilt button on a GMC Yukon?
Manual Cushion Tilt (If Equipped) If your vehicle has this feature, you can raise or lower the front of the driver’s or passenger’s seat with this lever located at the inside edge of the seat. To raise or lower the front of the seat, move the lever up or down in a continuous motion until the cushion reaches the desired height.
Who is the owner of the GMC Yukon?
GENERAL MOTORS, GM, the GM Emblem, GMC, the GMC Truck Emblem and the name YUKON are registered trademarks of General Motors Corporation. This manual includes the latest information at the time it was printed.
1-5 Power Lumbar Control (If Equipped) If your vehicle has this feature, the four-way control is located on the outboard side of the seat. To increase or decrease support, press and hold the front or rear of the control. Let go of the control when the lower seatback reaches the desired level of support.
GENERAL MOTORS, GM, the GM Emblem, GMC, the GMC Truck Emblem and the name YUKON are registered trademarks of General Motors Corporation. This manual includes the latest information at the time it was printed.
Manual Cushion Tilt (If Equipped) If your vehicle has this feature, you can raise or lower the front of the driver’s or passenger’s seat with this lever located at the inside edge of the seat. To raise or lower the front of the seat, move the lever up or down in a continuous motion until the cushion reaches the desired height.
How much does a GMC Yukon SLE cost?
Seating for 9 requires SLE with front bench seat. Starting at price for 2020 Yukon SLE. The Manufacturer’s Suggested Retail Price excludes destination freight charge, tax, title, license, dealer fees and optional equipment. See your GMC dealer for details.
What kind of engine does GMC Yukon XL have?
YUKON XL The Yukon full-size SUV offers a powerful 5.3L V8 engine paired with a 10-speed transmission to deliver 355 hp and 383 lb-ft of torque. . gives you a real-time, bird’s-eye view of the scene around your vehicle to help you navigate tight spaces when traveling at low speeds.
What kind of engine does a GMC Yukon have?
The 2012 GMC Yukon SLE and SLT are powered by a 5.3-liter V8 good for 320 horsepower and 335 pound-feet of torque. A six-speed automatic transmission with rear-wheel drive is standard.
What’s the average speed of a GMC Yukon?
In Edmunds brake testing of the related Tahoe, the Yukon came to a stop from 60 mph in 134 feet, an average distance for this type of vehicle. The 2012 GMC Yukon excels at highway cruising. The cabin is quiet and the suspension smoothes the bumps without making handling in the corners feel sloppy.
How much does a GMC Yukon engine hesitate?
GMC Yukon Engine hesitates during acceleration Inspection costs $89 on average. It can be frustrating for any driver to expect certain acceleration from their vehicle only to find that the vehicle seems to be hesitant while speeding up.
What kind of engine does GMC Yukon have?
The Yukon full-size SUV offers a powerful 5.3L V8 engine paired with a 10-speed transmission to deliver 355 hp and 383 lb-ft of torque.
How big is a GMC Yukon SLE SUV?
YUKON XL 1 Overall Length 225.2 in. 2 Cargo Volume (behind 3rd row) 41.5 cu. ft.† (13) 3 Third-row Leg Room 36.7 in.
What’s the length of a GMC Yukon XL?
YUKON XL Overall Length 225.2 in. Cargo Volume (behind 3rd row) 41.5 cu. ft.† Third-row Leg Room 36.7 in.