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Envoy

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Question
My car is making a clicking noise when I turn. 2002 GMC Envoy
Hello. If the vehicle is four wheel drive then it very well can be an axle that is failing. If the vehicle is two wheel drive then it does not have axles in the front. If that is the case...
Question
Why do I have a knocking/grinding sound coming from the front left tire area on my 2007 GMC Envoy
Hello. This can be caused by a number of things. If the noise only occurs when going over bumps then it is possible that you have an issue with the strut on the suspension or an issue with the ABS...
Question
Oil leaking from top left side of engine, could that be the vavle cover gasket?
Oil leaks at the top of engine could be at valve covers, intake manifolds, head gaskets, cam seals, PCV valve grommets and tubing and related components. The best thing to do, to get the source of the leak identified, is...
Question
Hello ! I have a problem with my ac compressor clutch, it won't engage unless I push it manually
It sounds like you may have a damaged AC compressor clutch. As you may know the AC Clutch is the pulley that spins with the Belt. There are two ports on the rear of the Compressor. One is a Suction...
Question
My car won't turn nor will it accelerate.
Hi there. The transmission position sensor is malfunctioning and needs replaced. The transmission position sensor tells the computer (ECM) what gear the transmission is in. If you need further assistance with your vehicle not starting, then seek out a professional,...
Question
2002 GMC Envoy message displayed on message board, turn engine off now. What does this mean?
Hi there. The message could have came on for something that may have been active on the engine or transmission. If the light comes on again, then the computer (ECM) should store the events and you could have them read...
Question
MY GMC ENVOY 2007 CAR IS CREATING A NOISE ESPECIALLY ON BUMPY RODAS.SOUND IS COMING FROM DRIVING SEAT TIRE SIDE AND ONLY ON BUMPY
Hello, thank you for writing in. The best option is to recreate the noise and pinpoint where it is coming from. You can do a bounce test to test the suspension components. Go to each bumper and press down on...
Question
Reduced engine power on GMC Envoy 2003
The issue you are writing in about is common enough that a specific diagnostic, namely a Reduced Engine Power Warning Light Diagnostic is performed by technicians dispatched by YourMechanic. If you request that diagnostic, the responding certified mechanic will get...
Question
Battery light was on and now car won't start and keys stuck in ignition
Hi there. It more than likely that you are experiencing an issue with the alternator or the main relay as opposed to the battery itself. Once your car starts, power to all components and accessories is provided by the alternator;...
Question
I took my 04 GMC Envoy to better brakes for less as I needed to have it pass smog and the check engine light was on. They said I n
Inasmuch as YourMechanic is mobile, you need not bring the car anywhere as the certified mechanic will come to you and take care of the radiator replacement. If you desire mobile replacement, please simply use YourMechanic's radiator replacement service page....
Question
Fuel smell and poor fuel economy
Hello, There are a number of things that can cause the fuel smell and poor fuel mileage as you describe. I would start with checking the mass air flow sensor as this is a common component that can become dirty...
Question
Heater controls not working
Hello, thank you for writing in. There are multiple fuse boxes associated with the vehicle, and you may also need to check the interior fuse box. Fuse number 13 according to my records is for the rear climate control, and...
Question
My gear when in park doesn't allow ME ro take my key out I have to push up real hard to take out the key..
Hello, thank you for writing in. We need to determine if the key is getting stuck in the ignition cylinder, or if the shifter is not registering as being in park. First, make sure nothing is stuck in the way...
Question
2003 GMC Envoy has oil in the throttle body
Oil in the air intake and throttle body indicates blow-by. Blow-by refers to the combustion gases that leak past piston rings during engine operation. The positive crankcase ventilation (PCV) system is designed to prevent these gases from leaking into the...
Question
Fuel pump fuse blowing
One of the most common causes for fuses to blow consistently as a shorted wire. There is either a short to positive which means that one wire that has power is shorting with another wire that has power. You could...
Question
My truck will start sometimes and other times it won't.
In this situation, especially after the note about the fuel level no changing, I would have the fuel pressure checked first to make sure the fuel pump is actually sending fuel to the engine on the times it will not...
Question
How do you remove the torque converter bolts off the flywheel? 2005 GMC Envoy Denali
Hello - with the vehicle safely supported to provide clearance underneath - in between the engine oil and transmission pan, there is a large, funnel-shaped aluminum casting (called the bellhousing), that physically mounts the engine to the transmission. At the...
Question
When i slow down my GMC Envoy shuts off and makes a humming noise like a toy car, told to replace the engine, noise is still there
If the humming noise occurs when the car is stationary with the engine on at any RPM, then it is engine or transmission related but the noise could originate from an accessory drive on the engine. However, if the noise...
Question
2003 gmc envoy ignition got broken from someone and i need to drive it how can i bypass the anti-theft locking system???
The anti theft system is integrated in the engine and body computers and cannot be bypassed. You will need to replace damaged component and if you have original key the system will start with old key held next to new...
Question
Rough idle, dip in idle, no acceleration power, replaced cam postion senor, cleaned pistons, spark plugs, and vvt what else?
You should have the computer scanned for misfire codes to see if one or more cylinders are misfiring and may have a bad coil or plug wire boot. Also check for vacuum leaks in the intake gaskets since any of...

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