Lee_H
Well-Known Member
An Update. After replacing the radiator but left the thermostat blank in I took the truck on stop and start traffic with no temperature issue. Then tried the Parkway Highway and had the temperature shoot up. I got off the next exit and pulled into a gas station where the coolant blew out and steam from the hood. After ten minutes I started the engine for a few minutes to move what was left of the coolant. The temperature dropped so I drove home, the ECT reading stayed around 170 deg. This week I replaced the thermostat with a 180 deg. and drove around start and stop traffic with the ECT read 180 to 195 while driving. I went back on the Parkway Highway and this time the temperature ECT reading about 190 deg. I did not drive around as much before trying the highway but the temperature did climb faster to operating temp. and stuck between 180 and 190 with 195 deg. being the highest temp. I saw. I hope the temperature issue is solved, now I have an issue (engine code P0401) that the EGR is lacking. Right now this is not stopping me from driving as long as the engine behaves. The other thing noticed is the transmission is in 4th gear (OverDrive) and the gas is pressed lightly it is a buzzing in the transmission and a lack of power the lasted one to two seconds before it regained power again. I'm assuming it either unlocked the O.D. torque converter lock and stayed in gear or tried to drop to third gear and did not complete the change.