Its fine while driving but when its idleing its like a slight and constant jerk. Im thinking I need a new car...lol

 

NO. Your car will be fine. At least you don't have rusting issues like we have here. Do the things suggested, you don't have to do them all at once but over a few pay days, I am sure it will clear up nicely. These things are normal for a 1997 automobile.

 

Yeah I am gonna get some new plugs and wires this weekend probably. Have you ever seen the SES flash 15 - 20 times then stop and stay lite up?

 

Never on my Deville, but on my GMC yes. It was a misfire condition on the GMC. Check the codes again and see. Flashing turning to steady on is ok. If it flashes and never stays steady I would suggestthat you slow down and drive easy and when safe stop because something is probably wrong. Turn off the car and wait at least 10 seconds and restart. If light still flashes go get service. If it goes steady you will be ok to drive as normal. Most SES are emission related when steady. A misfire is an emission problem when you get right down to it but a flashing SES indicates a misfire condition. Do you have an owner's manual? I think it addresses the SES light both steady and flashing conditions. A steady SES could indicate something as simple as a loose gas cap. In your case it is most likely a result of the misfire creating a malfunction in the emission control system. You can turn the light off by clearing the error codes you have.

 

About ready to just park it!! I used sealant last week. Check coolant level light came on yesterday. Leaving for work this morning saw the first puddle of coolant under my car. Havent seen one before. Wondering if there is a crack or something in the reservoir.

 

This is awesome actually. You have a leak and probably not a head gasket problem. So now you have to go get the pressure test or crawl under the car youself and have a look around. As I mentioned earlier there are several areas where a leak can occur. What side of the car was the puddle under, how far back, as they may help in giving you tips on possible causes. Look for signs of dampness on the frame etc...

 

The puddle was between the reservoir and the head light. Im just wondering why I have not see any leaks before, ya know.

 

So that is passenger side half way up. Did you get hot again? Was there any chance of an overflow from the tank? I'm assuming no otherwise you would have mentioned this. The problem with slow leaks is that they can leak so slowly but steadily that when driving they hit hot engine parts andevaporate away. As they worsen then you begin to notice puddles. I am going to point you to the Generator. The cooling lines to it are small diameter pipes that would present a smallish or slow leak but would also puddle when they finally fail. Just an idea. You really need the pressure test now, as it will most certainly poinpoint the problem.

 

How do you repair a generator?

 

It's just the cooling lines not the Generator. Because Cadillacs are so jammed packed with electronics the engineers choose to cool the Generator with coolant rather than air like most cars. On top of that a Cadillac generator is probably twice as strong as a regular mid sized car, something like 150 amps vs. 65 amps or so. Look at the pasenger side of the motor and you will see pipes coming and going from that Generator that go to the Radiator. They are small sized, maybe as round as Sharpie pen. You may need a trouble light or flash light to look down and see if you see any drips or seeping areas on the pipes.