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Envoy XL

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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...
Car shaking while idling.
If the engine shakes a little while driving this could be a fuel or ignition systems malfunction. If not enough fuel is being delivered to each cylinder or if the ignition system is not strong enough to burn the correct...
the gas, oil, and volt meters do not work on my 2004 GMC Envoy XL
These instrument clusters have been problematic for years. Among other developments, back in 2008 there was a GM Instrument Cluster Class Action Settlement which was applicable to your make and model year, as well as applicable to many other GM...
SUV, GMC Envoy, 2004, vehicle has no get up and go! Not shifting into gear! Already changed transmission fluid and spark plugs!
If engine speed increases steadily in response to accelerator inputs, then this is probably a transmission related fault. To give you a precise slate of possibilities though I would need to know exactly which gears (which "shift points") are "missing"...
I have issues with my air suspension. I have been reading through the forum of the topic, and I believe it has to do with my compressor.
The pump will become loud when it is under pressure and lifting a load. If the pump is quiet and you hear a hissing sound around where the pump is, either the pump is leaking or the main supply hose...
I am looking into doing a engine swap on a 2006 gmc envoy xl 4.2 Liter engine 6 cylinder
Hi there. Unfortunately, this is not a service we offer. Your best bet is to search for an engine replacement shop locally. They will be better equipped to provide you with the correct recommendation.
PO304
Hello, thank you for writing in. Between the tests you have done, and the diagnostic code for a misfire on cylinder 4, you may have an issue with the ignition system. You will want to check the ignition wire, the...
I took my truck to get a oil change and within a week or two my car started leaking oil to the point i lost all the oil.
There are a few things that will cause an engine to lose oil (https://www.yourmechanic.com/services/oil-level-is-low-inspection). A loose drain plug, leaking valve cover gaskets, and a leaking oil pan are a few causes for the oil to leak externally. Internally, there could...
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 (https://www.yourmechanic.com/services/windshield-wiper-linkage-replacement). You could attempt to get a visual...
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...
low gas mileage
Decreases in fuel economy are caused by things like fuel control issues (fuel injector leaks (https://www.yourmechanic.com/services/fuel-injector-replacement), bad O2 (https://www.yourmechanic.com/services/oxygen-sensor-replacement) or other sensors), transmission problems (won't shift into high gear, slipping, torque convertor clutch fails to lock-up), misfires (ignition related), low...
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...
My key is stuck in the ignition // GMC Envoy
The ignition key release is electronically actuated in your car, via a switch. If the battery is missing or discharged, the switch will stay in the closed position which is interpreted as "not in Park". Consequently, you cannot remove the...
2004 gmc envoy
The origin of the noise can be pinpointed if you request an engine noise diagnostic (https://www.yourmechanic.com/services/noise-from-engine-or-exhaust-inspection). The mechanic will consider the knock intensity which will vary depending on source or type. Light knocking or tapping noise is caused by the...
Oil pressure gauge drops, idle goes crazy and wanting to die.
Hi there. Either the engine oil pump is plugged up or failing or the engine bearings are worn causing internal oil leakage. The engine is running rough and wanting to stall due to the lack of lubrication. I recommend seeking...
My brake pads and rotators are uneven
Congratulations for using the right parts and being concerned about the details, especially when brakes are involved. I suggest you play it safe and have a technician inspect your brake pads (https://www.yourmechanic.com/services/brake-pads-replacement) and brake rotors (https://www.yourmechanic.com/services/brake-rotor-disc-replacement). There is no substitute...
coolant leak overheats only when driving
The external coolant leak you are referring to can be pinpointed by simple pressure testing of the cooling system when the engine is cold. To find the leak that exists in your case, and get the required repair estimated, please...
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...
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 (https://www.yourmechanic.com/article/what-causes-a-car-to-backfire), setting off...
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...

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