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Yukon

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A Buyer’s Guide to the 2012 GMC Yukon
When you want a big SUV that can hold its own, come what may, you’ll be happiest with a GMC Yukon. Although the inside of one of these vehicles can sometimes resemble an...

Related questions

Question
Running lean and I can't find a vacuum leak. Sometimes vibrates at various speeds. I let off the gas and then there is a lack of power.
Hi there. For the vacuum leak, look at all of the vacuum hoses on the engine and brake booster. Check to see if the hoses are split, cracked, or unmounted. A vibration could be the engine running rough from the...
Question
Brakes
If you check the brake master cylinder reservoir to see if it is low on fluid. If the fluid level is good and pedal is going to the floor still then you most likely have a bad master cylinder leaking...
Question
Truck keeps stalling
This may be related to many different possibilities, however if the truck starts ans then stalls, it is most likely related to a fuel supply issue. This may be related to low fuel pressure, faulty or dirty fuel injectors, a...
Question
Reduced engine light is on...could it be the battery or because it needs oil?
Hello. Thank you for writing in. There are several causes for the reduced engine power light to illuminate. Luckily because there is a light on, the computer has detected what the issue is and is trying to communicate that to...
Question
Code P0430
A triggered P0430 code is not usually failing oxygen sensors. These sensors have picked up activity after the catalyst that should not be there and is telling you that the catalytic converter must be replaced. The catalytic converter is used...
Question
Oil gauge issue
Hi There, It sounds like whatever you hit in the road may have punctured a hole in your oil pan causing a very fast oil leak. As you know, this will cause the oil pressure gauge to drop very rapidly...
Question
How do I disable /remove onstar system from my truck
Hi there: You should contact your GMC dealership to ask about this, as their ONSTAR program and accessories are often tied into the ECU and could impact the overall operation of some security features on your Yukon. Cutting wires without...
Question
I have a reduced engine power light.
Hi there. This light can come on for a number of reasons. It usually comes on when there is a voltage issue, but it will also come on when the computer finds a reason to reduce the power to protect...
Question
New distributor installation
You should first see if the old distributor will go back in. If it does then the new distributor should slide right in. If not find where it will go in and then lift it slightly and rotate until it...
Question
Right front tire wears out quickly 19956 Chevy Yukon
Hello - you don't say how the tire is wearing out. Underinflation of the tire will produce rapid tire wear, and is indicated by similar wear of both the inner and outer edges of the tire surface. This will occur...
Question
Blower motor not blowing air
Hello, thank you for writing in. You have to replace the resistor because it was likely the cause of the melting wire. You have to replace that wire as well. Often replacement wires are not the same color. As long...
Question
Strut replacement with electronic suspension
Hello. You can replace the air suspension components with traditional suspension components, however doing so would remove the air functionality of the components. If there is a compressor on the vehicle it is likely that it generates air pressure for...
Question
Denali has less power when excellerating exhuast is quiet
Hi there. We're a bit confused about what you're asking or what problem you're experiencing with your Yukon. If you're having problems with acceleration, but the exhaust system seems quiet, it's possible that you have a bad fuel system component...
Question
Anti theft system causing car not to start and mechanic can't fix says take it to dealer but I don't have a lot of money
Hi there: In most cases if there is an issue with the security or anti-theft system on a vehicle that is causing the vehicle to not start it can only be repaired by the dealership for security purposes. However, it...
Question
My ABS is making a lot of noise in my GMC Yukon 2002.
Before spending the extra money on replacing the modules for the ABS and traction control, you may want to have the wheel sensors checked first as these are commonly known to either fail or become disrupted causing theses systems to...
Question
how do i get to and replace starter
Hi there: In general, the process for replacing a starter follows this method: Inspect the starter and ignition switch. Remove and replace starter if it has failed. Test for power going to starter. Inspect the starter relay, grounds,...
Question
Why won't my car start
Hi There, It sounds like what you are describing may be related to a fuel supply issue. Since it does start but then dies, this suggests that it is getting spark fine. Fuel supply problems include things like low fuel...
Question
If the engine is locked up or a rod is blown will it still try to turn over ?
Hi there. Sometimes what might appear to be major engine damage is actually caused by a small electrical problem. If you try to crank the engine over, but it won't crank over, it's possible that the starter relay, starter itself...
Question
ABS/CV axle problems after installing new axles.
Hi there. The hubs to the vehicle are designed with the harness in the middle of them for the ABS sensors. You may have installed the wrong CV axles. The replacement CV axles for the vehicle are a different design...
Question
Turn Signal, cruise, brakes, and emergency flashers not working properly.
If you have already replaced the flasher module for the turn signals, your problem may be in the switch assembly whether it is a shorted circuit or the contacts in the switch not making a proper connection and causing problems...

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