Coolant swap (not sure is this the proper forum for this ?)
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Coolant swap (not sure is this the proper forum for this ?)
is the best way to drain and swap your coolant with new fluid by syphining the old fluid from the Rad and coolant resevoir? i'm looking at replacing my fluids but am not sure as to the best approach ... Thanks to anyone who'* got info on this ..(already read and printed the "getting rid of air lock" section in the techinfo) EDIT.....o.k. found out that i can drain the old coolant by the means of a drain plug and flush afterward ...so i should be all set ...Thanks
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wow ..thanks I just picked up some Prestone flush and dex-cool last night but didn't look for a flush kit ...does the 04 Bonnie have a drain plug or valve?(petcock) as i read that this is the easiest way but that not all cars have one .. haven't put my car up on my ramps yet to look as we've been still getting lot'* of snow/storms
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I would consider returning the Dex and buying "mixes with any type, any color" coolant instead. Removing knock sensors is the best way to get most of the coolant out of the block, but is not easy to do. The sensors are fragile, very hard to get out, and must be replaced without losing the ground connection, water seal, or over-tightening.
I don't like to use the radiator drain valve because they often fail to re-seal once they have been opened up to drain, requiring replacement of the drain valve assembly. I find it quicker and easier to wiggle the lower radiator hose off just enough to control the flow of coolant into a pan.
For some other ideas on how to flush the cooling system, use the search feature at the top of the page and use the keywords: reverse flush.
Here'* one I found doing just that:
I don't like to use the radiator drain valve because they often fail to re-seal once they have been opened up to drain, requiring replacement of the drain valve assembly. I find it quicker and easier to wiggle the lower radiator hose off just enough to control the flow of coolant into a pan.
For some other ideas on how to flush the cooling system, use the search feature at the top of the page and use the keywords: reverse flush.
Here'* one I found doing just that:
Originally Posted by bill buttermore
...filling at the thermostat opening as described in the Techinfo article is still a good idea.
If you have the time, and energy, and have a nice warm place to work with a sanitary drain nearby, you might want to try this method for flushing. http://www.bonnevilleclub.com/forum/...ic.php?t=84203
Following that method, you will perform a true reverse flush for the radiator, engine, and heater core. Using the flushing Tee alone will not provide a reverse flush for the heater core or for the entire radiator, just the side tank on the passenger side.
Reversing the direction of normal flow through the system is more effective in flushing sediment from narrowed and blocked passages in the system than flushing in the normal direction of flow. Normal flow is from the bottom of the radiator to the water pump, from the water pump to the engine block both sides, up into the cylinder heads and intake manifold, out of the intake manifold passenger side through the coolant elbow, to the heater core through the top heater hose, back from the heater core through the lower heater hose to the water pump, out of the intake manifold driver'* side to the radiator top hose through the thermostat (only when open) across the radiator from the driver'* side to the passenger side, out the bottom of the passenger side tank.
If you have the time, and energy, and have a nice warm place to work with a sanitary drain nearby, you might want to try this method for flushing. http://www.bonnevilleclub.com/forum/...ic.php?t=84203
Following that method, you will perform a true reverse flush for the radiator, engine, and heater core. Using the flushing Tee alone will not provide a reverse flush for the heater core or for the entire radiator, just the side tank on the passenger side.
Reversing the direction of normal flow through the system is more effective in flushing sediment from narrowed and blocked passages in the system than flushing in the normal direction of flow. Normal flow is from the bottom of the radiator to the water pump, from the water pump to the engine block both sides, up into the cylinder heads and intake manifold, out of the intake manifold passenger side through the coolant elbow, to the heater core through the top heater hose, back from the heater core through the lower heater hose to the water pump, out of the intake manifold driver'* side to the radiator top hose through the thermostat (only when open) across the radiator from the driver'* side to the passenger side, out the bottom of the passenger side tank.
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Thanks for the post and link ..just wondering why shouldn't i use the "Dex" (Prestone LongLife GM DEX-COOL approved Anti/coolant) had bought Nascar color changing stuff but than read that only dex should be used.... Thanks got myself a Flushing "T" tonight and will defenitely use the Reverse Flush Method
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Originally Posted by willwren
www.zillamotorsports.com/dex
Read that. It'll give you nightmares.
Read that. It'll give you nightmares.