20 Most Recent 2005 GMC Yukon Denali Questions & Answers

Did they disconnect the battery for some reason? It sounds the the anti-theft immobilizer is triggered. Do you have a way to check for DTC codes? https://www.google.com/search?q=2005+GMC+Denali+security+reset ..

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Looks like that you have a faulty coil pack. If the coil pack is faulty, it tends not to give current to the plugs. One good reason why the engine won't kick, have it replaced and you'll be good.

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Remote starters normally only let you do that. You will need a key made in case the remote starter fails, and they do often. The dealership can do it from the VIN Number. You should really have one for use and a spare.

Check alldatadiy.com for wiring schematics.

if the transmission fluid is brown or it hasn't been changed then I would flush it

Here is what I have listed, more than likely you have the 4L60E which is 5qts.
CAPACITIES
Engine, with filter..........6.0 quarts[1]
Cooling System, Initial Fill..........17.0 quarts
AMSOIL Antifreeze and Engine Coolant
Cooling System, W/ Rear Heat Initial Fill..........19.0 quarts
AMSOIL Antifreeze and Engine Coolant
Automatic Transmission, 4L80E Initial Fill..........7.7 quarts[2]
Automatic Transmission, 4L85E Initial Fill..........7.7 quarts[2]
Automatic Transmission, 4L60E Initial Fill..........5.0 quarts[2]
Automatic Transmission, Total Fill
4 speed 4L60E..........11.0 quarts
4 speed 4L80E..........14.0 quarts

Dexron VI is the way to go. As for a filter the choice is yours..Hope this helps Tim

IF battery voltage is above 12.2 volts, I'd suspect a bad IGN switch

Could be any number of thing's . Testing the electrical circuit's for the affected systems would need to be done to find the problem . Do you know how to use a wiring diagram an a DVOM - digital volt ohm meter to test automotive electrical circuits ? Do you know what a wiring diagram is ? If not , your best bet would be to take your vehicle to a qualified repair shop.

GM radios and other electronics are serviced by any electronics repair shop that is authorized by AC Delco. Check your yellow pages for shops and ask them if they authorized.

Trust no one. Get yourself a compression tester and test each cylinder yourself after removing the plugs. They should all be within about 10 psi of each other - if you have no compression you will get a big fat zero reading

Could be turbocharger or exhaust pipe clogged with ash from exhaust smoke. In any case, service is paramount.

its more than likely the bulb has gone, it will if you leave it on for long periods of time, can be a led on some dashes and they can last longer than bulbs but sometimes they dont.

It's the step motors inside the cluster that control the gauges . From 2003 to 2006 GM had bad step motors . You need a new cluster or you can buy a kit off ebay or amazon How to repair GM Instrument Cluster Speedometer Gauge Stepper

Does your vehicle have manual or automatic climate control ? The blower motor control processor may be the problem . Chevy GMC Blower Fan Stuck On

Two fittings close together. The small one closer to firewall is the low side. The large one close to condenser is high side. Orifice tube is in the line and drops pressure. HOW TO RECHARGE THE AC FOR CHEVY TAHOE HOW TO REPLACE ORIFICE TUBE

No , it's a sealed unit . Hub bearing doesn't cost that much . Wheel bearing assembly replacement 2005 GMC Yukon Denali install remove...

First start with making sure the engine is purged of air, and you have no thick white smoke coming from the exhaust in back. 2 sure signs of a blown head gasket are, thick white smoke. next is , leave the cap off the reservoir/radiator. If it throws the coolant back out at start up, it's bad. Not there, next is to do a compression test on the cylinders. Low or no compression is bad gaskets also. These are the first things to check and do. Before just throwing money at good parts.

You need to talk to the experts on auto sound issues like this one. www.crutchfield.com

The common cause is the control is defective.