Terry
Well-Known Member
I don't trust the factory gauge's. I switched to mechanical gauge's and never looked back. On my 86, the oil pressure went to zero out in the middle of the California desert and it was the gauge. I have a old Nissan sentra that I had to replace the head gasket twice due to the thermostat switch going out. My 87 is a 4 x 4 with no factory ac. I also have the bigger radiator from a truck with and extended cab and ac and and 185 temp thermostat and stock fan. The only good way to understand your truck is to install mechanical gauge's