Quote:
Originally Posted by dwmitchell61
She runs! For the most part...
The truck runs well with no load. HOWEVER... it overheats when one tows a two horse trailer.... 
So I installed the SES lamp... BUT, should have unhooked the battery.... AAagghhh.... The battery power lead to the SES accidentally shorted when I was trying to connect it to the LED lamp...
Now no power at all. The BATT PWR lead to the SES lamp was connected to the BATT FUSED. Looking at that, there is something like a rectangular can in the position rather than a fuse. Is this a circuit breaker or a large fuse? It doesn't seem to unplug like a fuse.... Ugh... Pleas help!
I need to get the codes from the computer to see if there is a sensor or computer related issue, or if it is fan clutch/radiator issue. The thermostat is new and works.
Replaced a 30A fuse in the main battery lead under hood with a 30A resetting breaker. that fixed the power issue I caused.
Thanks in advance,
Dave |
Truck over heats when towing a two horse trailer empty up an incline, under load.
Jumpered A & B on ALDL and only code I received was 12. The BATT + on the TBI harness IS connected on the truck BATT + so I am assuming there were no codes stored.
So it looks like a cooling system issue.
1. Fan clutch maybe. The one from 1988 has clutch and 5 blades. I have an non-clutched flex fan with 6 blades that was mounted on the original engine.
2. Pressure cap. I will buy a new one. reads 15PSI on the current one.
3. Radiator may have passages clogged. The fins are all clear.
I may buy a new radiator as it could be clogged in some of the passageways.
Dave