Northcoast300h
Active Member
When I got it from the junkyard 20yrs ago, one of the many first things I did was add a temp gauge. It would get up to 240 when it was about 85 degrees with A/C off. So I had the radiator recored, replaced the water pump, did a back flush on the system, and changed the thermostat and hoses. There was a bunch of crap that came out of it. After that, it ran around 235 which was disappointing. So I just didn't drive it more than 10 miles when it was above 85 degrees....Solved.
Since then, I changed out fan clutch, sealed the fan shroud, replaced the ratty old rubber mat under the car so air would be directed to the radiator, did another back flush, replaced with 50% distilled water, 50% prestone, replaced the radiator spring cap and checked the cowl to see if there was anything blocking the exit air flow. It would get up to 230....which again was disappointing.
A couple months ago, I added a 10" electric fan, but noticed about half the airflow doesn't make it past the A/C condenser, however I notice temps don't go up when stopped in traffic. I also tried that expensive ceramic coating paint for exhaust manifolds to lower underhood temps.....worked a little, I guess? Ran at 225.
Last week, I tried that Super Coolant which dropped it by only 5 degrees. Now it runs at 220.
Anyone have any better ideas? Is there a larger radiator I can put in this car without cutting it up? Is 220 too hot when its only 85 degrees outside with A/C off....or am I just being a wimpy guy?
Thanks,
Since then, I changed out fan clutch, sealed the fan shroud, replaced the ratty old rubber mat under the car so air would be directed to the radiator, did another back flush, replaced with 50% distilled water, 50% prestone, replaced the radiator spring cap and checked the cowl to see if there was anything blocking the exit air flow. It would get up to 230....which again was disappointing.
A couple months ago, I added a 10" electric fan, but noticed about half the airflow doesn't make it past the A/C condenser, however I notice temps don't go up when stopped in traffic. I also tried that expensive ceramic coating paint for exhaust manifolds to lower underhood temps.....worked a little, I guess? Ran at 225.
Last week, I tried that Super Coolant which dropped it by only 5 degrees. Now it runs at 220.
Anyone have any better ideas? Is there a larger radiator I can put in this car without cutting it up? Is 220 too hot when its only 85 degrees outside with A/C off....or am I just being a wimpy guy?
Thanks,