20 Most Recent 2003 GMC Envoy - Page 7 Questions & Answers

This may be related to the antitheft system The system is known for turning off the starter and/or injectors when it fails. Is there a light on the dash that says SECURITY? This is a common problem worth looking into. http://www.diy-gm-security.com/

Toe-in can be adjusted by adjusting you outer tie rod ends. I would not recommend adjusting them without alignment equipment though, with the exception of an emergency situation. If you go too far it will eat your tires in the front very quickly. On a 4 x 4 you are looking at around $60.00 for a 4-wheel alignment.

IF YOU HAVE NO HARD START PROBLEMS, COLD OR HOT, I WOULD START WITH A PC SCAN FOR CODES, EMISSIONS TEST & FUEL PSI CK. IT COULD BE AS SIMPLE AS A VACUUM LEAK. THAN SCAN PC FOR CODES (TPS, IDLE SPEED SOLINOID. OR RUNS LEAN OR RICH- VAC LEAKS AIR/ GF, INJECTORS FUEL PSI ETC. START WITH THE BASICS. AIR, FUEL & SPARK/ TIMING. GOOD LUCK FRANK M

The tail light fuse is under the rear seat on the drivers side.

Need the model number from the stereo to answer the question

probably the strut (shock)

You need to see if you have the switch all the way to the left I'm talking about the on that dims the inside panels lights or check on the dome you have a switch make sure it's in the middle good luck

The emergency brake switch is most likely the cause of your problem. It is on the side of the brake pedal. Some you can adjust the position to where it shows the emergency brake pedal is not depressed. Here is an image of the switch..Hope that solves your problem

1. there is an emergency release button under the gear shift. 2. You can also try: turn key on (don't start), then push as hard as you can on brake pedal(literally try to push through floor), them push button on shifter and pull as hard as you can to neutral. Now try to start car after putting it in park. Sometimes if you shift to another gear just as you shut off key it will lock where it is. Also if you have used the 4 wheel (lo or hi) and did not put car in neutral before changing out of 4 wheel it can lock up. My mother has done both of these things to my car. And the above suggestion (2) has worked great for me.

hey my friend the thermostat in not like others its a real pain here is exactly what you have to do if u have the 4200 vortec How to replace thermostat 4 2 envoy or trailblazer btw in case u was wondering or did not know the trailblazer and envoy is the same

Your power window swith for window is bad

if battery dead key wont go all the way to off other problem is the console shifter boot on these models has a habit of getting caught and stopping the shifter from completely into park or jam so cant get out of park ---also the shifter cable can get corroded or damaged its located on drivers side of transmission under vihicle

if the "plate" is on the drivers side front lower side of engine that plate with tube attached is your thermostat and if it is yes your coolant will leak out from it ---other than that you will need to be more specific about the plate

If the CHECK ENGINE light is on, you will need to readout stored codes and correct any conditions implied by the error codes. Once you have done that, considering that the vehicle is now nearly 13 years old, change the fuel filter, then check pressure at the fuel rail. If pressure at the fuel rail is incorrect, replace the fuel pressure regulator and check function of the fuel pump. Also, check to be sure that the fuel pickup strainer in the tank isn't clogged with debris. Additionally, many problems like the one you are describing are caused by fuel contamination, especially where ethanol blend fuels are used. Try replacing all fuel in the system, preferably with non-ethanol fuel. Also, you're likely due for a major tune-up, including new plug wires and coil packs.

OF COURSE; IT ALL DEPENDS ON HOW MUCH WORK YOU ARE WILLING TO DO.

Slim jim won't reach it because of how it has to be curved to get to the latch. You have to pry out the top of the jam/window. Then reach down with a close hanger to unlock the door. Don't push against the top as it will bend. Pull the window/frame out. It will bow out some. Put your knee in the middle of the door and pull the window/frame back into place.

Have your engine pressure tested to see if there's a leak, if there is then its probably due to cracked head or torn head gasket and if thats the case then go to autozone or advance or w/e and get bluedevil head casket seal now listen if u do this it will say take out ur thermostat but u cant on the gmc envoy with the 4200 vortex because the thermostat is not like others if u take it off u want b able to run nothing through ur motor just leave it in and follow the other instructions to a tee ie drain and put plain water in it dont really have to use a flush kit juts get as much antifreeze out u can no big deal if u leave some in and u dont have to drain it after THE BLUE DEVIL CAN STAY IN THERE then make sure it top off most of the time its a permanent fix hope this helps

Exactly what do you mean the rear axle is on the ground? Do you mean the body in the rear has lowered? Do you have the air suspension system on your truck? If so, you may a leak in the system somewhere or the compressor is bad.