coolant leak

[Hotrodpops]

Hello all,

i have a 09 Silverado 5.3 i been having a coolant smell on the driver side of the truck for years, never seen a leak till i change the oil. looks like the leak is by the driver side motor mount dripping onto my oil cooler lines then down on the front pumpkin. did a pressure test on it but can t see it leaking.

is there a freeze plug behind the motor mount ??  

[Hotrodpops]

i see 122 members online but my question must have no replies on this topic ?

thanks

[CamGTP]

You aren't entitled to a reply you know, it's the internet man.

 

There are no freeze plugs on the block that I remember There are freeze plugs in the cylinder heads though. The drivers side is the only side that will have a spot for a block heater at the rear of the block, that could leak coolant but unlikely.

 

Next you have the water pump gaskets between the pump and front of the engine. Then you have the head gaskets and the coolant temp sensor on the drivers side. That is pretty much it for possible coolant leaks.

[Hotrodpops]

Thank you for the reply.

everything has been looked at on coolant locations, im an old mechanic from the good days with not all the B/S that is on the car now days. LOL 

i do have a leak around the driver side motor mount, not enough to see it dripping. i guess the only thing to do would be take the exhaust manifold off and investigate. LOL

[ricflair2]

Did you ever figure out what it was ? i have the same problem on my 2011 gmc 6.2