| Re: [GMCnet] Filling Cooling System [message #324441 is a reply to message #324440] |
Thu, 28 September 2017 22:54   |
Carl S.
Messages: 4186
Registered: January 2009
Location: Tucson, AZ.
Karma:
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Senior Member |
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Mac,
Most mechanic's shops need to completely fill 'closed' cooling systems that are common on many later model cars. They typically use a vacuum system similar to evacuating an air conditioning system. You should be able to find someone locally who can perform this operation for you.
The old fashioned way is to fill the radiator and the coolant overflow reservoir, start the engine and bring it up to operating temperature, shut it off and let it cool down. The system will suck coolant out of the reservoir to fill the system. Repeat the above procedure until the reservoir level stabilizes.
Not to discourage you, but an overheated engine will often crack heads. Hopefully that did NOT happen to yours. If it did, a competent shop can do a top end job for you. Expect to pay somewhere around $3,000.00 to replace the heads.
Carl Stouffer
'75 ex Palm Beach
Tucson, AZ.
Chuck Aulgur Reaction Arm Disc Brakes, Quadrabags, 3.70 LSD final drive, Lenzi knuckles/hubs, Dodge Truck 16" X 8" front wheels, Rear American Eagles, Solar battery charging. GMCSJ and GMCMI member
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