roofer

2004 Frontier 15K. When driven i can smell it but unable to pinpoint leak. I think is somewhere above valve cover on drivers side But not visible. just some residue? Any help would be much appreciated. chazmen11@msn.com

 

Meta

Are you actually loosing radiator fluid?

Any oil in the radiator?

jerryp58

You could check the opposite too; coolant in the oil (foaming on and under the oil filler cap).

Hopefully, it isn't that.

Hopefully it isn't a leaky heater core either. Do you smell it inside the cab or outside the cab?

Have you checked the radiator and heater hoses? Maybe, hopefully, it's something as simple as a loose clamp.

Have you checked the radiator itself? Maybe something went through those gaping holes in the bumper and hit it.

I don't know if this engine has any coolant running through the intake (like other vehicles I've owned); I can check my service manual for that if you like.

How about the overflow resevoir? Is it cracked and leaking or maybe overflowing?

Just some thoughts.

__________________

Jerry
2004 Frontier, King Cab, XE, 4x1, 4-cyl, 5-spd
My Frontier Page

metro273

What kinda engine ya' got? 4 or 6 cylinder?

OBYWAN

Check the air bleeder screw to make sure it's tight. Facing the engine, it's on the top right manifold. It's a brass screw; you can't miss it.

 

Itchy

I had this same problem with my 2000 Nissan v6.... only leaked when it was cooled off.. found a puddle of A-Freeze in the morning..

turned out to be the cold idle valve or cold idle valve throttle.. it was on the top drivers side, a white piece buried in small hoses.. it had a green residue on it from the leak... dealer only part

roofer

Only on coll down .Intake gasket dealer replaced