Is this a coolant leak?

That line looks like its been bad a while, I'm surprised the shop did not catch it on its last Oil change. They stand out pretty well when down in a pit!

 

Gotta love road salt!

 

Mine on my truck started leaking right at the weld for the bracket to the frame. Apart from that mine looked brand new. Not a cheap part. Just buy some silicone coolant hose and bypass them steel lines. Much easier and cheaper. Half an hour or so and your on your way cheap

 

good deal...make sure its tight. Glad your all fixed up

 

Are you talking about your water temp gauge? Did the shop mess with the sensor when they replaced those coolant lines?

 

Doesn't sound like anything to worry about, as long as it acts right after its running. My fan runs for a while when I start my truck as well, no matter the temperature.

 

That something you need to get checked. Depending on how the ECM is set,it can go into limp mode or shut down. It could be temp sensor going bad,most of the time it's the wiring right at the plug.