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Why does my GMC Sierra 1500 say service 4WD?

Why does my GMC Sierra 1500 say service 4WD? Having similar issues as above, had to drive the truck in 4wd high for a short period of time without the rear drive shaft, heard a clunk and the service 4wd message came on, the front drive shaft quit which left me stranded. Can a 4WD Chevy Silverado be serviced on YouTube? *EASY FIX!* SERVICE 4WD Chevy Silverado/GMC Sierra - YouTube *EASY FIX!* SERVICE 4WD Chevy Silverado/GMC Sierra If playback doesn't begin shortly, try restarting your device. Videos you watch may be added to the TV's watch history and influence TV...
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Why does air conditioning start to smell when the compressor turns off but the fan keeps running?

Why does air conditioning start to smell when the compressor turns off but the fan keeps running? The coil gets wet from condensation but when the compressor is running the air is cold so it's ability to absorb water is very low. When the compressor turns off the air heats back up, absorbs the water from the coil and blows the humid air out of the vents. Why is my AC fan not turning off? The most common reason that your Air Conditioner fan won’t turn off is because a stuck relay keeping the circuit closed. If it’s not the...
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What happens when the DTC is stuck on p0742?

What happens when the DTC is stuck on p0742? If any additional transmission related DTC's appear in addition to the P0742, an electrical failure is likely. Symptoms of a P0742 trouble code may include: Stuck On Indicator Lamp (MIL) illuminated (a.k.a. Check Engine Light) If the torque converter clutch is actually stuck on, the engine may stall at idle. What does p0741 mean on a torque converter? P0741 is a diagnostic trouble code (DTC) for "Torque Converter Clutch Circuit Performance or Stuck Off". This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this...
Common questions

Where to place an exhaust gas temperature probe?

Where to place an exhaust gas temperature probe? Installation Information Exhaust Gas Temperature (EGT) Probe placement in the exhaust path requires special attention. If it is closer than 1½ inches to the cylinder head, probe life will be limited, too far away the probe will be less responsive. How are the EGT probes connected to the meter? The probes are connected to high temperature thermocouple wire and a connector and then to either a dual channel meter or two single channel meters for monitoring in the vehicles' cockpit. One of the considerations of the installation is the distance from the...
Easy lifehacks

What should I use to stop a rear differential leak?

What should I use to stop a rear differential leak? Adam-. For a rear differential leak, we recommend using the BlueDevil Oil Stop Leak. BlueDevil Oil Stop Leak is more concentrated and is the universal application that will work for various leaks such as oil pan leaks, rear main leaks, valve cover gasket leaks, etc. Where are the seals on a rear differential? Some differentials put these seals just outside the bearings, while others have the seals all the way at the end of the axle tube. Due to different designs, your differential can leak from many different places making...
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Why does my AC blow warm air at idle?

Why does my AC blow warm air at idle? [quote=”slotcar” post=77378]:) Since the change away from Freon as a coolant gas, the AC system of most modern cars will not cool with no air crossing the condenser. Most fans do not pull enough air at idle to cool air enough to keep your car cool as it did when we used Freon. Why does my 134a blow cold at idle? Trust me if 134A did not blow cold at idle there would be lots of very abgry customers. The electric fans ensure proper air flow even at a stop. In...
Easy lifehacks

What are the torque specifications for a 128.8 engine?

What are the torque specifications for a 128.8 engine? 128.8 Crankshaft To Engine Block Cylinder Head To Engine Block Distributor Clamp To Engine Block Distributor Clamp To Engine Block Drain Plug To Oil Pan Engine Temp Sensor To Engine Block Exhaust Manifold To Cylinder Head Flywheel To Crankshaft Flywheel To Crankshaft What are the problems with a 6.5L diesel? Common problems with the 6.5 diesel include crankshaft, glow plug, and PMD failure. Overheating is also an issue with the 6.5L, and it can lead to cylinder head cracking. Is the 6.5L a naturally aspirated or turbocharged engine? Unlike the earlier...
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What was the problem with my Chevy Tahoe?

What was the problem with my Chevy Tahoe? 1) Heater not working...only cold air blowing out 2) no indoor/overhead dome lights when entering or leaving vehicle 3) windows were slow going up and down 4) overhead heater & a/c not working. Thanks again!! Mel M. 2 people found this helpful. What happens when you jump start a Chevy Tahoe? Had the same thing happen to mine after getting a jump start, windows wouldn't roll down, no radio, gauges wouldn't work, AC wouldn't work, etc. The reset worked for awhile, then while driving, it did it again and the car stalled....
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What does it mean when your timing chain is broken?

What does it mean when your timing chain is broken? Start the engine. If the valves are not moving when you try to start the engine, that means that the timing chain is no longer alerting the valves on when to open and close, meaning that your timing chain is broken. Certain cars have computers which can read any problems with your engine. How to diagnose jumped timing chain autointhebox? 1. Open the hood. Place the vehicle in park with the emergency brake set. Start the engine but be sure the battery has a full charge and is operating at...
Common questions

How much does a 55 Chevy Belair weigh?

How much does a 55 Chevy Belair weigh? Curb Weight: 3125 lbs. Vehicle Length: 195.6 in. How big is a 1958 Chevy Bel Air? The 1958 Chevrolet Bel Air Series measures 77.70 inches in width, 209.10 inches in length, and has a wheelbase of 117.50 inches. What are the specs for a Chevy 283? General Specifications. All models of the Chevy 283 had a bore and stroke of 3.875 by 3.00 inches. Additionally, the spark plug gap and point gap in all models were 0.035 inch and 0.019 inch, respectively. When did the Chevy 283 small block come out? In...