I started to smell some coolant a couple weeks ago after driving for an hour. At the time I checked and have periodically checked the coolant level, the oil and for any signs of leaks but no luck.

Today I checked and it looks like some residue on the driver side, at the bottom of the radiator on the frame. I know the radiator and water pump were replaced a couple years ago. The coolant level IS down. There is not smells in the cab and the carpet is dry.

So, I plan on trying some leak stop for the radiator in case there is a pin hole or such.

Anyone have any other ideas? Just in case there is no pin hole leak?

Dale

 

The draincock is near the location you mentioned, check that before anything.

I would advise against stop-leak products, I have had bad experiences with them. I used some to stop the leak I had in my old chevy (freeze plug pinhole). It stopped the leak alright... it also settled on the corners of the water channels in the block which impeded flow and gave me an overheating problem (it would heat up at drive-thrus, red lights, traffic stops, etc.)

In lieu of stop leak products, I suggest some quick steel. Put it over the pinhole (if that's what it is) and let it cure. This is only a temp fix, but has served me well in a few situations when money was tight.

 

I did check the drain, but could not get the drain to move with my fingers. That are is definately the location of the leak. Just cannot pinpoint it.

 

I finally found the leak. after climbing a BIG hill pulling a trailer I was leaking for sure. Came from the top part of the radiation where the plastic and the metal come together (seam) on the top right side. SO. New radiator installed.

 

Can't thank you enough for up dating your thread. It'll help someone else down the road, (no pun intended). Glad you found your fix!

 

+1.... Very few people update. Thank You