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I have a 2013 FX4 with the 5.0 in it. Last year I had the coolant leak in the t-pipe in the front of my engine. I replaced the compressed o-ring and that solved my issue. However, for the past year I have been smelling coolant from my engine and had been checking my levels which remained normal. About a month ago, after getting off the highway, I noticed some steam coming from under my hood and found my coolant reservoir was empty. Now I have been noticing my coolant leaking again, but this time from a different place. It seems to be coming from underneath my engine about level with the rear side of my front tires, or the beginning of my running boards. I can't find where this leak is coming from, even after putting the truck on a lift with a mechanic, and would appreciate any help if someone has had a similar issue. Coolant leak coming from under backside of engine. Truck is on a downhill grade. Coolant leak from under engine. Coolant leak starting at rear of engine. Dripping straight down to ground. Not the small wet spot under mudflap, but the larger difficult to see puddle under engine.
Wash down the engine so you can pressurize the system so you can slide under and take a look.You should be able to pressure check the system and find a leak like that. Don't overlook hose connections and the weep hole on the water pump.
Will do. Also I had the same mechanic mentioned above pressurize the system and it was holding pressure. We still couldn't find a leak. When we were under the truck the coolant appeared to be dripping off of an electrical line.
I had a leak from the bottom connection of my reservoir tank. The kit linked above was a much cheaper and easier fix than the $500+ repair the stealership wanted to do.
Coolant leak
