Coolant Smell

[Rodney]

I noticed when I pulled in the garage yesterday,I walked in front of truck that smelled some anti-freeze. I poped the hood and looked everywhere,rad,waterpump, freeze plugs,all looked good with no leaks.Even top hose was hard like it was holding good preasure. Just don't know,,Thanks

 

[BradE.]

Check the heater control valve. It's on the passanger side near the firewall. There are 4 hoses running to it and a vac line.

It's a very common leaking problem. I had to replace mine about 3 weeks ago. I could also smell coolant outside the truck.

 

[Rodney]

Forgot to say I replaced the heater control valve a couple of months ago.Water pump weep hole looks not to be leaking,but I'm going to keep checking each time.Hope it is'nt a head gasket problem.Have they (4.0) had a problem with head gaskets before? Has never over heated ,Temp. hand stays about half way when warmed up .Has good hot heat .thanks

 

[RickPA]

Just had the same thing. I didn't see it at first but the thermostat housing joint was seeping just a little. A little RTV, as suggested by this forum fixed it.