Coolant Leak

[Bullfrog]

Help! My '91 Marq is leaking coolant at the rear of the engine and I'm having trouble determining the source. Here's what I know: there's no leak when the engine is cool (thermostat closed) but it's a fast drip when it's warm; it seems to be coming from between the engine and tranny in the area near to the O2 sensor on the driver's side; there's no coolant in the oil; the car hasn't overheated.

Any ideas?

[mrltd]

well, unfortunately there are multiple possbilities. The intake itself, the coolant lines that go to the egr spacer, the heater hoses.....

[Bullfrog]

Thanks for your quick reply mrltd. I found the leak. It was one of the hoses going to the throttle body. Hard to see but easy to fix. Case closed!

[86VickyLX]

It usually is those lines, many people forget to replace them.