coolant s bypass hose

[Hahny]

And don't forget to buy yourself a bottle of RMI 25.

 

[grass doctor]

I got two bottles on stand by im a dooms day preper
next will be the rad im debating on taking it out to go get redone but got a cars and coffee Saturday ahh just another flush when it goes

 

[grass doctor]

hey Scott cars and coffee Saturday at the avenues if you can break away love to meet you

 

[captndave737]

I run 180. After putting in an aluminum radiator and dual fans the car ran too cold even on 100 deg. days. I don't race however.

 

[earlbrown]

I like 180. Colder is not automatically better. If it were, we'd just leave out the thermostat and run as cold as possible. An aluminium housing is a nessessary upgrade as well. Save a little bit of weight, doesn't rust, and no galvanic corrosion.


On your coolant, since you're in FL, I'd do RMI and water. As long as you keep an eye out for random global warming cold snaps that get to below freezing.

 

[grass doctor]

all back together with new stuff just got back from test run good to go
thx guys

 

[1KWIKSIX]

I'll take the stock factory hose clamp(s) if still available. Shipping to Niagara Falls NY 14304.

FYI...Highway Stars has a Hi Flow 180 deg Thermostat....I'd suggest you grab one of these (this is what I'm running)

 

[grass doctor]

I re used the clamps just kidding around

 

[grass doctor]

so last night I started it up let it run warm up and no fan until it got up to temp
this morning turned it on and fan came on right away ????? bad relay or temp sending unit ????

 

[ScottHeidinger]

If your a/c compressor is on (defrost?) the fan will run. Try turning the climate control off to make sure.


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[ScottHeidinger]

If the compressor isn’t on then make sure you got all of the air out of the cooling system.


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[grass doctor]

10/4 in I think I got all the air out , I didn't even run the ac or defrost

 

[grass doctor]

just got back from the avenues cars and coffee huge gathering saw three GN's two were race cars and another slightly modified t-top
gonna let it cool down then unplug relay see if the fan stays off

 

[ScottHeidinger]

http://www.vortexbuicks-etc.com/fan.htm


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[grass doctor]

I'd say that needs to be replaced

 

[ScottHeidinger]

I wouldn’t replace that.


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[grass doctor]

I started at the first one closest to firewall pulling them checking to see if went off finally when I got to the last one closest to front of the car it turned it off so is that the one that is bad it says that one isn't controlled by ecm

 

[ScottHeidinger]

Did you check the a/c pressure switch or coolant temp switch?


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[grass doctor]

I don't ever run the ac bc it runs like a dog with the ac on there are three coolant sensors the idiot one on turbo side front of motor
and the one on front of motor controlled by ecm drivers side think that's the override one and the one on top of intake drivers side
I eventually want to replace them all because of age
is it the high pressure switch or low pressure switch on ac that would also cause the fan to run and which coolant which to check first

 

[earlbrown]

You don't need to replace that fan delay relay, you need to omit it.


Those things have no benefit other than killing your battery in the middle of the night.

On the upside, they tend to not burn your house down while you sleep. So I guess there is that.