diesel_lv
Member
- Joined
- Oct 17, 2017
- Posts
- 45
- Reaction score
- 14
- Location
- AZ
- First Name
- John
- Truck Year
- 1987
- Truck Model
- K5
- Engine Size
- 350
I've got a '87 K5, 350 tbi w 700r transmission. Number reading factory temp gauge. It has a 2 wire, oval plug, temp sending unit next to thermostat housing. It has a single wire sending unit on driver side head between 1st two cylinders. Double wire is for computer and single wire is for gauge. I have large 2-1/4" deep 2 row aluminum radiator, heavy duty fan clutch and new 5 blade factory fan with 195° a/c delco themostat. While driving at 60, temps get up to 230 on gauge. I pull over, take out my lazer heat gun and at thermostat 180°, at 2 wire sensor the same, at 1 wire on side of head 230°. Oil tank shows 180 also. Is it normal for the single wire sensor to get that hot? Or is that sensor put in the wrong location. This is in Fort Mohave, AZ on 108° day. It's May and we are just getting started. See up to 130° air temps here.