Huffa
Well-Known Member
The 8V92TA in our truck has gradually started running hotter and hotter. The big Horton fan rarely came on but now it comes on driving down a flat road if the truck is loaded. I have had the radiator out, cleaned and rodded twice, thermostats checked and or replaced, new water pump kit too. This has been slowly getting worse over the last few years but it really needs to be sorted before this summer. Running empty is not a problem but with a load and especially on a hot day the poor old fan is cutting in and out regularly. I had to rebuild the Horton last summer. Two temp gauges are working correctly. The engine hasn't had a top tune for a fair while and it had the turbo replaced a few years back that was leaking oil past the seal. With that in mind if it sucked oil for a while I assume that the after cooler will be caked up and need to be removed and cleaned which is my next step. Question is could the after cooler being caked up if it is actually cause the overheating? It doesn't use any water or bubble. Any ideas appreciated