I have a 93 bonneville that has a coolant leak that I can't locate. A friend suggested I locate the freeze plugs but I can't locate them. please help?

93 bonneville se
3.8.



If you need any more info about the car let me know.

Hello and welcome to the club! Yoursubject title needs to be more specific; i editted it for you. Unfortunately we can't tell you where your car is leaking...you're the one with access to the car, lol. Freeze plugs don't seem to be a big issue with these engines. Some common places are: (ranked in order of most common to least common, IMO)

-where the throttlebody joins to the upper intake manifold
-in front of the power steering pump where the heater hose goes into the lower intake manifold
-the water pump itself
-heater core

Any signs of coolant under the car which would give some type of an idea of from where it is leaking?

If you give us a general location of the leak..we can tell you the usual suspects.

I'd say it'* the passenger side under the engine is where I see it coming from. It doesn't look like it'* coming from the water pump my friend couldn't find any leak around it. Thanks for you help and understanding

Well..that would be waterpump or coolant bypass from the waterpump area. The freeze plugs are 1/3 and 2/3 of the way back on each side of the engine.

Where is the bypass hose located?

Right around the water pump. I'm not 100% on your engine.

It comes out the top of the water pump then into the LIM through a plastic barb fitting that should be replaced with steel.

Check the weep hole on the bottom of the water pump.

I've got a dumb question LIM ? What does that stand for? If I was to guess lower intake manifold? Thanks again.