Easy tips

How do I recharge my Yukon XL air conditioner?

How do I recharge my Yukon XL air conditioner? Occasionally, the refrigerant needs to be recharged. This is something anyone can do at home. Start the Yukon's engine; turn the air conditioner on, and open the windows -- the recharge process requires that the air conditioning compressor is running. Raise the hood of the Yukon. Can you add Freon to a 2004 GMC Yukon? The A/C system in your Yukon consists of a compressor that is belt-driven, an evaporator and freon. If there is a problem with your compressor or evaporator, adding freon will not restore cooling. How to add...
Easy lifehacks

Can air get trapped in your gas tank?

Can air get trapped in your gas tank? Answer: Pressure normally builds up inside the gas tank with all cars. Back in the days fuel tank vapors (gases) would escape into the air. If your car is letting out air from the gas tank filler whenever you unscrew the gas cap, gas tank vapors are not being routed back the the engine properly. Is it bad to leave no airspace inside the gas tank? With that said, it’s not a good idea to leave no airspace inside the fuel tank. It’s even a worse idea to fill the tank to...
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Why is my TPS sensor on my GM car not working?

Why is my TPS sensor on my GM car not working? If GM TPS sensors have any inherent flaws, it is a tendency to slip out of adjustment. Though this can happen to any car, many GM owners have reported such a failure. How does the throttle position sensor work on a GM Truck? Like the majority of throttle position sensors on modern fuel injected cars and trucks nowadays, the GM TPS is a three wire sensor. Each wire provides a specific type of signal to the TPS or to the PCM (Powertrain Control Module=Fuel Injection Computer). Below are the...
Common questions

What is the DTC code for secondary air injection?

What is the DTC code for secondary air injection? For bank #1, see code P0491. Other secondary air injection system trouble codes include P0410, P0411, P0412, P0413, P0414, P0415, P0416, P0417, P0418, P0419, P041F, P044F, and P0491. Symptoms of a P0492 engine code may include. Potential causes for a P0492 may include: A fuse or relay for the secondary air injection pump may be faulty When does Bank 2 secondary air injection valve stay open? The P2442 code is a generic powertrain code related to the auxiliary emissions control system. This particular code appears when the bank 2 secondary air...
Easy tips

Where are the engine and transmission mounts on a GMC Truck?

Where are the engine and transmission mounts on a GMC Truck? These 47-59 Chevy, GMC truck engine and transmission mounts are high quality items at a very moderate price. Engine crossmember mounts between the frame rails allowing you to set the engine wherever you want depending on your application. How big is the transmission crossmember on a GMC Truck? Adjustable depending on where you position the end caps. From center of holes end to end 32" minimum to 33" Wide x 2" Drop. Transmission crossmember. What kind of engine does a GMC Truck have? FWIW, GM used to put Pontiac...
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Why do my rear springs squeak?

Why do my rear springs squeak? As your vehicle goes over irregularities in the pavement, the leaf springs minimize the jolt transference to the chassis. Sometimes, dirt or moisture can build up between the leaf springs, causing them to squeak, groan or moan when you hit a bump. While this can be annoying, it's not overly detrimental to the vehicle. Why is the rear of my truck squeaking? Besides brakes squeaking, the most common squeaks are usually associated with your vehicle's suspension. The squeaking suspension parts are often associated with a lack of lubrication when metal-on-metal wear is happening in...
Common questions

What are the changes to the GMC Yukon Denali?

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...
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Why does my Sierra not shift out of Park?

Why does my Sierra not shift out of Park? 2011 sierra intermittently would not shift out of park. Replaced brake light switch. Ten $ and 20 minutes labor. Problem solved. Has never happened again. 19 people found this helpful. What to do when shifter won't come out of Park? Step on brake. Shifter won't come out of Park. Easy fix, I have the or had the same problem with my 97 GMC c1500. Just tilt the wheel up and look on the bottom plastic cover you should see a cut out on the lower right hand side (Gas's pedel side)...
Easy tips

What was GMC first truck?

What was GMC first truck? 1912 The first truck to wear a GMC badge debuted in 1912, while a predecessor from the Max Grabowsky's Rapid Motor Vehicle Co. was the first commercial truck operated in the City of Detroit 10 years earlier. Here's a list of highlights by decade, accompanied by a corresponding photo of each. When was the first GM truck made? 1902 The evolution of the truck takes a fascinating route across American history, beginning with GM commercial trucks being built in Detroit back in 1902, and then later working folks were strapping wagon beds or cargo boxes...
Easy tips

Is it good to buy a new trailer?

Is it good to buy a new trailer? After you have decided on the style of trailer you need, and the capabilities of your tow vehicle, you are ready to move forward! Purchasing your new trailer can be a great experience and provide excitement over the adventures you have on the road before you. What do you need to know about a trailer? Add in transporting liquids, and the need to be able to brake quickly and safely becomes more of a necessity. Some trailers are equipped with electronic braking systems that detect when you are applying pressure to the...