scroller95969 wrote:
Yes my fan does roar when I start the engine. I can test the thermostat when I have it apart next time. I do all my own mechanic work so far. I can throw a lot of parts at a problem for $100.00 per hour that a mechanic would charge. By the time I take the radiator out and have the top tank taken off to check for blockages I might as well just replace the radiator for $200.00. Just drove 730 miles yesterday across the Nevada desert and was able to manage the cooling problem by keeping it under 60mph and not over about 1/3 throttle on long climbs. I always drive under 60mph anyway for gas savings. I won't be able to take it apart again until after Christmas because of time constraints. It doesn't run hot in the fall anyways. Trying to amass ideas now so I can tackle it after my busy season. Thanks again for the ideas, Jeff.
NTORACN wrote:
scroller95969 wrote:
Thanks for the update. I'm glad you found the answer for your overheating. Unfortunately for me I have already replaced those 3 items including using a Hayden severe duty fan clutch. I did however use the 187 degree thermostat instead of the 180 degree that you used. Maybe I should install another Hayden fan clutch, radiator cap and thermostat just in case the slight chance that I might have gotten a defective one. My problem sounds slightly different however because I can hear my fan clutch turn on about 224-235 degrees. Thanks again, Jeff.
oh yeah, does your fan clutch roar for the first 30-60 seconds afer a cold start? If not, the fan clutch is NOT working properly and needs replaced. the thermostat can be tested in your kitchen using a small pot of boiling water and an oven thermometer. Take your radiator cap to your regular mechanic to be tested. That way you don't replace good parts with good parts.
If its roaring on start up that a good sign. Its the same roaring you should be hearing when the coolant temp is in the 210 to 220 range. Check that the fan shroud has no major gaps around the radiator and the condenser and radiator are relatively free from debris, blocking airflow. Radiator cleaning or replacement is a good idea if you don't know its internal condition. Keep us posted.
