fuel filter
Perhaps your radiator fan is staying on after the car is turned off. I have recently had this problem, and googled it. And someone else had the same problem.
check little switch under your brake pedal....... and check brake fluid. This was the problem on daughters 206 . Topped up brake fluid on now ok.
Get the carbon canister checked out I had same problem after get coils replaced on my clio
probably the switch stuck on. pull out fuse in mean time
check your hoses, there could be a vacuum hose with a leak causing this problem
If a battery light is staying on, it generally means that your alternator isn't charging properly. Be prepared to have to pay for a new alternator, and if it has been damaged, a new battery as well.
Moving, advancing, walking, running
I believe there isn't one, i have a '91 LeSabre and it doesnt have one. 87- 91 Lesabres are exactly the same cars, so it seems like you have a problem with your headlight staying on all the time. If that's the problem then i cant help you.
cancer
Problem with emission system have vehicel scanned to determine problem
If you have to hold the key forward to keep the car running, it could indicate a problem with the ignition switch or the starter system. This issue might prevent the engine from staying on without continuous power from the key. It's advisable to have the ignition system checked by a mechanic to diagnose and fix the underlying problem, as it could lead to further complications if left unaddressed.
Cylinder is bad need toreplace