Question about 2002 GMC Yukon Denali

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What is the coolant for a 2002 yukon - 2002 GMC Yukon Denali

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Posted on Oct 03, 2010


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I have a 2002 yokon xl with a 5.3l engnie have coolant comeing from the drive side at the back of the power streeing pumup

Sounds like your heater core might have ruptured. Will need to remove complete dash board to replace this component.

Nov 12, 2016 | 2002 GMC Yukon XL

1 Answer

Using coolant fluid on my yukon

Gm cars and trucks use dex cool coolant.

Nov 02, 2013 | 2002 GMC Yukon Denali

1 Answer

Coolant leak from water pump?

how can I tell if my coolant leak is coming from the water pump

Aug 11, 2013 | 2002 GMC Yukon Denali

1 Answer

The reserve coolant tank is leaking and the low coolant light keeps coming on

Remove the tank & check it out

Either it has a hole or the hose going to it

Jul 14, 2011 | 2002 GMC Yukon Denali

1 Answer

The message center is saying coolant low but it looks like its full.

the coolant level sensor in the system give false coolant level readings,the sensor is located in the side tank of the radiator held in by a wire spring clip, pull it out and clean it, if that doesn't cure the light then replace the sensor, they are fairly cheap to buy from the dealer

May 20, 2010 | 2002 GMC Yukon Denali

1 Answer

How do you drain the coolant out of a 2002 yukon

Usually there is a petcock on the lower edge of the radiator either on the right or left side. If you can not find it at all then disconnect lower radiator hose from either radiator or water pump. This will make a small mess but will drain the coolant.

Aug 16, 2009 | 2003 GMC Yukon

2 Answers

Water pump for 2002 Yukon Denali

Your water pump can last an indefinate amount of time as there are no rules on how long this may or may not last.At this juncture I would check for any play or lose feeling(or roughness) in the shaft with the belt off and inspect for any signs of weeping through the bottom "weep hole".If it feels tight and no excessive coolant trail appears from the bottom hole,I would personally "keep on truckin" as a failing pump will exhibit these an other signs of failure before it becomes a major issue....

Aug 11, 2009 | 2002 GMC Yukon Denali

1 Answer

The air-conditioner on our GMC Yukon does not blow cold when stopped at a light or such. The fan still blows, but the air is not cold unless the Yukon is moving. Can this be fixed?

Make sure that your coolant is full. That is usualy the cause.When you are at idle there is not sufficent coolant to be pushed thru the heater core.

Jul 08, 2009 | 2002 GMC Sierra

1 Answer

2003 Denali overheating too easily when idling in traffic. A/c on at time. Message center also indicating coolant over temp.

well i deal with this problem every day it seems that your coolant might be bad and needs to be flushed out or you have a bad thermostat and the coolant is getting clogged up not being able to flow thru that try flushing radiator and then if nothing thermostat

Jul 04, 2009 | 2002 GMC Yukon Denali

1 Answer

2002 yukon

Your description may actually be your answer, so to speak. You mention 'generally as engine is cooling or if coolant is added too quickly'. It sounds to me like the reservoir is over-filled.
When the engine is cooling, coolant tends to flow back to the reservoir (plastic 'jug' where you add coolant). A bad radiator cap or one that was replaced with too low a PSI rating can easily allow too much to fill the reservoir and and occasionally overflow it. Most reservoirs use a rubber tube to drain excess coolant so it may appear to 'leak' near the front left wheel or left side of engine.
Replace your radiator cap. (did they pressure test the cap too?)
Make sure you check your owner's manual for the proper PSI. My sources show 15-16psi, but that sounds a little high to me. Also, make sure you have the correct (50/50) anti-freeze/water mixture.
After you replace the cap, make sure the reservoir has the right amount of coolant and isn't over-filled. (To 'fill cold' line) Drive the engine until hot, then park the truck and see if the problem is fixed. Good Luck!

Oct 31, 2008 | 2002 GMC Yukon XL

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