20 Most Recent 2005 GMC Sierra Denali - Page 8 Questions & Answers

Hi.

Here the procedure

• Trun off the engine.
• Put the ignition key in RUN position.
• Press and release the accelerator pedal in full and slowly for three times within 5 seconds. I
• A reset message should flash to indicate that the system is resetting.
• Turn the key to lock position.

Regards.

Hello. Remove the gas cap temporarily and try starting it. IF after it cranks over ten times it still will not start, replace the gas cap. Then get a can of starter fluid and someone to assist you. While one person squirts a little starter fluid into the air intake area [with the air filter removed] start the car and run it on starter fluid for a couple of minutes. This will clean up the carburator. If there is improvement, Get a can of carbeurator cleaner and spray that into the air intake also. Joe

need to know what code is in it you must have it scanned

does it make any noise what so ever but not release?

possible short in speed sensor wire or sensor

the teeth are broken off the starter replace your starter

You have a short in the charging system and it must be traced down there is very little I can tell you othe rthan this you may need to bring the vehicle to a electrical diagnostic garage that specifically specialize in electrical diagnosis. Check the wires at the starter and all points on the wiring harness where accessable for damage or kinking. since the fuses are not blowing out it leads me to believe the the problem's origin is in the starting system or the charging system these two areas are where I would focus on, if your good with a volt meter you can check the positive wire from alternator onward for continuity there should be none present ( it should not read zero ) if there is that wire is grounding out and must be traced adressed and repaired.

that usually means you have a bad sensor (such as an O2) and the engine is running on self preservation mode. Take it in and have the codes pulled to see what sensor may have failed.

Try the ignition coil or the timing belt is loose or broken.

chances are the engine is running cold, u will need to replace the engine thermostat, it most likely is stuck open, this is common, the thermostat is located at the engine end of the upper radiator hose, remove the upper hose and then the cover the hose is attached to, the thermostat is under the cover, replace with this part number thermostat.
STANT Part # 14948 {Heavy-Duty Thermostat - 186 Degree Reverse Poppet (2 17/64" x 3/4" x 1 27/32") w/Jiggle Pin, Seal}
186 Degree's; OE Temperature; Seal included
$6.19 US

locate the relay for the low beam headlights in the fuse panel near the battery. replace it and they should work again. also check the fuses

its saying that the 4WS is on....if its not maybe you have a sensor out. that system is complicated take it to your dealer.

Were is the cable broken and was it frozen?
Let me know.
Regards,

THE HEATER AND BLOWER RELAY. IS LOCATED ON THE BLOWER MOTOR HOUSING IN THE PASSENGER COMPARTMENT.ON 1999 THROUGH 2002 MODELS. AND IN THE FUSE RELAY CENTER IN THE ENGINE COMPARTMENT.ON 2003 AND LATER MODELS THE HVAC FUSE IS LOCATED IN THE FUSE RELAY PANEL UNDER THE LEFT SIDE OF THE DASH.

The control may have gone bad... You'll need to remove screws that are by the door handle, arm rest, under door and side of door and then gently pull back on the panel as there will also be retaining clips attached and you don't want to break them. Then you can disconnect the controls and test them

Your fuel filter is located under the RH frame rail and it shouldn't be to hard to replace. You might wanna check your fuel pump pressure too.

You may have an issue with the MAP sensor if this is an EFI engine. This part of the car dictates the fuel that is injected into the cylinders. It could be faulty. You may also want to check the fuel supply for your car. You car may not have the correct supply of fuel if the fuel filter is clogged and needs replacing. This can be true to carbs and EFI engines alike. For EFI you may also want to check the fuel pump if it provides constant supply of fuel. It may be weak and may not provide the correct amounts of fuel during acceleration.

For carbs, you may want to check for leaks in the vacuum hoses and the jets if they need cleaning.

this is for eng misfire cylinder # 3 misfire try tune up

take off the rear tires and the drums. there is a cable at the bottom of your wheel bearing assembly, thats your emergency brake cable. try to push and pull it. follow the line up the side of the car and try to push and pull as far as you can. you may also be able to spray it with pb blaster to break it free from the dirt and corrosion