pianoman2
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- Mar 23, 2009
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I have a 1984 Ranger with the 2.8 V-6 that tends to run hot. This truck also has an A4LD trans that I rebuilt and installed last year.
Then engine was rebuilt last year, (by me) and ran fine last year during the summer. It is bored .030 over and I have converted the carb and fuel system over to the dura spark system.
The problem I am having is that after about 10 minutes on the highway at 65mph the temp starts to climb. If you stay at that speed long enough it will push 220 degrees on the guage and you better slow it down for a bit or it will climb. Turn the heater on and the temp falls some also.
Idling around town at slower speeds it runs cooler (around 190)
What all has been done: new 195 degree thermostat, new three core radiator, timing set and reset, double checked to make sure tranny is locking the torque converter and that it is going into overdrive.
The thermostat is still located on the outlet for the lower hose.
Also installed a larger fan on the water pump to try and move more air through the radiator. Fan clutch is new.
Not sure where to look next to solve this heating issue, nor why it would be okay last summer, but now won't cool with all the new items.
Then engine was rebuilt last year, (by me) and ran fine last year during the summer. It is bored .030 over and I have converted the carb and fuel system over to the dura spark system.
The problem I am having is that after about 10 minutes on the highway at 65mph the temp starts to climb. If you stay at that speed long enough it will push 220 degrees on the guage and you better slow it down for a bit or it will climb. Turn the heater on and the temp falls some also.
Idling around town at slower speeds it runs cooler (around 190)
What all has been done: new 195 degree thermostat, new three core radiator, timing set and reset, double checked to make sure tranny is locking the torque converter and that it is going into overdrive.
The thermostat is still located on the outlet for the lower hose.
Also installed a larger fan on the water pump to try and move more air through the radiator. Fan clutch is new.
Not sure where to look next to solve this heating issue, nor why it would be okay last summer, but now won't cool with all the new items.