Sorry for the long post! My son was driving (97 bonneville SE) on hwy when the engine light came on. He checked the gauges & was high & moving higher. He said he was slowing down to stop & the car started running rough. He stopped & saw "steam" but he couldn't see any leaks & the resivoir was full. He called me but I was unable to answer so he sat there to let it cool off. He then strted it & it seemed to run OK so he tried to make it home. He got to within a mile of home & it overheated again. He pulled off to let it cool again. When he started it this time, it was running rough then quit. I called him & told him to leave it & we would get it later . When I got there it started then died. I found a vacuum line broke next to the thermostat housing. I repaired it & then started it. It was running a little rough but I figured if a code was set maybe it would clear after I reset them. I drove it home & right when I pulled into the garage it started to overheat. I noticed the upper radiator hose was colapsed. The hose is not more than a year old so I wasn't sure what would cause that much vacuum to colapse the hose. I put 3 qts antifreeze in. After checking various sources, I replaced the radiator cap & checked the resavoir & hose to make sure they wern't clogged. I started the car & noticed immediatly that the lower radiator hose was colapsed. I tried to remove the radiator cap but the vacuum was holding it in place. I turn the car off. I removed the cap & was going to start the car to see if the coolant was moving but it wouldn't start. There was white smoke coming from the tail pipe. When I tried again, ...click..click. Please help!!

Pull the plugs and inspect them. Want to make sure you dont have coolant in the cylinders. I'm wondering if you have a clogged water jacket. If you over heated the engine you may have cooked the rings. Does it turn over?

No. I'm going to pull the plugs tomorrow to check them & also see if I can rotate the engine.

Post pictures if you can, it may help us figure something out.

I hurt my back last Sunday so I couldn't work on the car till today. The engine wouldn't turn over so I removed the plugs. I took pictures but I don't no how to post them. I rotated the engine & coolant came out of the # 4 cylinder.

Sounds like a blown head gasket. Is that the only cylinder that has coolant in it?

As for posting pictures. Go to Image hosting, free photo sharing & video sharing at Photobucket and set up a free account. then upload the images/videos there. You can then click on the IMG code and then past that in to your message.

Yes, #4 is only cylinder. Not the UIM/LIM?

That is possible, but I would suspect the head gasket. I wouldn't expect only one cylinder to fill up with a LIM/UIM gasket failure.

Here are some pictures...maybe.

IMG]http://i445.photobucket.com/albums/qq178/97BONNIESE/100_0333.jpg[/IMG]

You missed a bracket right in front.