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Envoy XL

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Question
Smoke coming out of tailpipe
If the smoke is white, you're burning coolant, if the smoke is blue, you're burning oil, if the smoke is black, you're running rich (too much gas). A qualified technician, like one from YourMechanic, can help you identify the problem...
Question
Loud clicking while driving
Hi there. I wouldn’t wait to have your car looked at. You may very well have a wheel coming off. A loose wheel, or a worn wheel bearing can make a clicking noise and a wobble. If you need further...
Question
The suv is overheating to much.
You did not mention what was the fix of the leaking coolant by the right tire? I would have the system pressure tested to see if there is any present leaks in the system. If there are no leaks, then...
Question
Car idles rough
A code scan from a diagnostic tool will aid you in further diagnosing your issue. Coil packs are common issue, and typically replaced all at once. Although these particular coil packs are costly, if one goes bad, then the others...
Question
low gas mileage
Decreases in fuel economy are caused by things like fuel control issues (fuel injector leaks, bad O2 or other sensors), transmission problems (won't shift into high gear, slipping, torque convertor clutch fails to lock-up), misfires (ignition related), low tire pressure,...
Question
loss of power sluggish
I recommend inspecting, then cleaning the throttle body if any deposits are found. It's important to do this with key off and disconnect the electrical connector to throttle body. Do not put your fingers in there until it is connected....
Question
wind noise in doors
I'm not sure if the wind noise can be eliminated due to the shape of your 2005 GMC Envoy, but you may be able to reduce it to a more tolerable level. If you have a roof rack, I've heard...
Question
surges stalls low speeds
I would inspect the throttle and clean the throttle body if needed. There may also be an updated calibration available for your Envoy's powertrain control module. The crankshaft position sensor (CKP) signal can be checked with a scan tool to...
Question
Possible ECM problem
Hello! Im assuming the code was a P0606 which indicates a PCM/ECM processor internal fault. I suggest checking the wiring and terminal at the ECM because at times it will be just a bad connection/wire causing the trouble code. There...
Question
Car turns on, able to shift but wont move
Great description. It sounds like you have a problem with the shifter cable. The cable either broke, or the end of it popped off. The cable runs from the shifter to a linkage arm on the transmission. The ends of...
Question
How to fix gear shifter
In many cases, this problem can be caused by a loose connection behind the instrument cluster. First, the fuses for the gear and information center displays must be checked. If the fuse did blow, there is a faulty component along...
Question
Can 2 serpentine belts need replacing within 11 years and can the alternator suddenly fail without warning ?
Hello. There is a huge variance in manufacturer estimates of serpentine belt lifetime. This is understandable because operating conditions vary, vehicle designs vary and the belt material will degrade at different rates. You should get at least 50,000 miles out...
Question
Engine die when get hot
If your engine is shutting off when it gets hot it is possible that it could be overheating. Many vehicles have a feature built into the engine that will kill the engine if it reaches a certain temperature. For an...
Question
i need the location of the shift solenoid
Hello. The shift solenoid is located in the valve body assembly which is within the transmission. Typically, these solenoids can be replaced without removing the transmission but the job requires care and attention to detail. Of course, if you are...
Question
I was driving my truck and it made this "poof" sound as if something blew. I lost everything--brakes, power steering, and it stalled
Hi, thanks for writing in. It is possible that the "poof" and exhaust smell (rotten gas smell?) both originated from the catalytic converter, and sulfur deposits in the converter. The engine may have backfired through the exhaust, setting off a...
Question
keep or junk
I would fix the drive shaft and continue to drive it after spending all the money on the transmission. If you need help with this, reach out to a certified technician who will be able to diagnose and replace your...
Question
Vehicle cannot exceed 20 mph.
There several things that can create this condition. First, there could be a lack of fuel or other related components associate with engine performance. Second, the exhaust system could be blocked, prohibiting the flow of exhaust. Lastly, there could be...
Question
Front wiper stopped working and is making a ticking noise
Hi there. From the description you have given, it would appear, the front wiper motor may still be operating. The ticking noise could be, the motor turning and wiper linkage is disconnected. You could attempt to get a visual through...
Question
Lower Control Arm bushing
After viewing the pictures you supplied and viewing many different manufacturers of the lower control arms I do not thing the bushing is installed all the way in your control arm. I recommend you go online and print one or...
Question
Front wheel 4-wheel drive is locking up when coming to a stop
Hi there. It sounds like you could be having a brake concern. If the front wheels are locking up, there could be issues with the abs actuator, brake lines, calipers, or proportioning valve. As this is a safety issue, I...

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