cold weather start

[hayesash]

Truck started slow today. About 6 degrees celsius and not plugged in. It didn't go to the normal high idle and didn't have that noisy clatter it has when it is cold. It has just recently started to shut off suddenly for no reason. It always fires right back up. Replaced FSD about 6 months ago. Any ideas?

Pat

[Robyn]

Check the fuel lift pump to be sure its working

[hayesash]

Lift pump pressure is 4 lbs at an idle. New JK quick heat glow plugs, Time to check grounds again?
Any other suggestions ?
Pat

[Robyn]

Check the coolant temp sensor. if its getting flakey the thing may start hard.

[Bnave95]

Check the coolant temp sensor. if its getting flakey the thing may start hard.
Or unplug this before starting. Should fast idle,then plug back in. See what happens.

[hayesash]

Pulled the coolant temp plug off this morning. Same slow start. It doesn't
always do this .Pulled it off the day before and it started and high idled but doesn't have noisy clatter.

Frustrating!!!