How to remove radiator from acadia - Acadia GMC Cars & Trucks

the dealership has not tried everything if they have not done a compression test
water pumps seldom are responsible for overheating as their major failure is bearings and pump seal
if it has plastic radiator tanks, the plastic cracks and there is no pressure build up so the coolant boils off at a lower temp
there are a lot more tests that can be done other than what the dealer did

"You Tube" will have a video just for you. Punch in your information and I am sure there will be an answer there for you.

https://www.ebay.com.au/sch/i.html?_from=R40&_trksid=m570.l1313&_nkw=holden+vectra+1999+radiator+drain+plug+&_sacat=33599

Could be, could also be lack of antifreeze , leaky hoses, radiator, heater core etc., etc.. Start with fluid levels>

No More Radiator Drain Valves in GM vehicles

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Starting in 2003, GM discontinued the use of a drain hose attached to the radiator drain valve. Later, GM discontinued the use of a radiator drain valve altogether. Some models continued to include a drain valve, but the valve was permanently sealed during production. Do NOT try and operate these sealed valves-they will break. GM warns that if you try to remove and replace the valve, debris from the breakage may circulate throughout the system and damage water pump, heater core, and thermostat components.
The bottom line is that you must now either remove the lower radiator hose or use a siphon to remove coolant from the radiator. This bulletin applies to all 1998-04 GM cars and trucks.

Do you have an extended warranty ?
Usually white smoke from the exhaust means the engine is burning coolant thru a blown head gasket or intake gasket.
You should also be low on coolant in the radiator.

it sounds as though your acadia may not actually be overheating, it sounds more like the tempeture sensor is bad, if its "froze" at a certain reading this could fool your computer, you should be able to replace this part for around 20 or 30 dollars. hope this helps

Hi, viewer! The steering pump reservoir is on the right side area of the engine but is concealed underneath the top engine dress cover. Remove first the engine oil cap, turn it conterclockwise to loosen out. Then pull the engine dress cover upwards from side to side. There are no bolts, and there are only 2 clips holding the cover from below. Just pull carefully upwards with enough force to detach . And don't forget about the oil cap when fixing it all back. okay, sir? : )

On the front corner of your Acadia's middle row seats, you will notice a plastic covering - pull on it - the plastic pin holding it back will fall off, and you can then remove it. Now, the bolts that need to be removed to unmount the seat, are clearly visible.
Also, experts recommend that it would be best if the doors are removed to give enough space to manage the task. Removing the doors may take you about 10 to 15 minutes, whereas seat removal can take 20 to 25 minutes.