Quote
truck is diff. i drive it for about 10-15 miles @ 70 mph and
temp gauge starts going to middle. when i slow down, temp goes down to normal level. coolant drains but not to reser-
voir. no leaks found. is this pointing to hg too?


When I had problems with a partially clogged radiator, I would get that type of symptom. Engine started to run hot/overheat if it was hot outside (75F+) and speed > 65 or RPM > 3500. If I slowed down on the flats or if on a hill and shifted to a higher gear (lower engine revs) the temperature would drop. New 3-row radiator and it was fine.

r.c.brown@ieee.org
TruckEditor@tlca.org
Project: 4Crawler
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