2002 Cadillac Sts - Answered Questions & Fixed issues

RNMAC8 - see this link it should help you: http://www.cadillacforums.com/forums/cadillac-tech-tips-how-fix/203046-malfunction-indicator-light-p0741-p1860.html

Is the battery , battery cables , and connections all good ? The ABS and the traction control lights being on wouldn't have anything to do with not starting . The check engine light should be on with the key in the on position , should stay on till the engine is cranked over . The battery is under the rear seat .

I think that you have a failed touch screen unit. Pull it out and send it in for repair. Check the web there are many online repair sites that can do the needed repair.

Low on transmission fluid , Shift cable broke , internal problems , fluid pump worn out , Unless you rebuild transmissions for a living ( went to school to do it ) your best bet is take it to AAMCO or dealer !

Check fluid level is correct if auto,clutch adjustment if manual.

Check your Fuses

It is probably related to the fuel injection system. If it were old, it is similar to a choke on a carburator. Try putting some good fuel injection cleaner in the gas. If that doesn't work... take an air hose and blow out the circuit which is accessible through a plate by the butterfly air inlet. You can also spray carb or brake cleaner to unfoul that system... but it will smoke for a while.

Put in a fuel injector cleaner such as Lucas. Use a higher octane gas. 91 or more. After a couple of tank fulls the Knocking should go away unless you somehow bent a pushhrod. Did you replace your timing belt/chain recently?? If not use a higher octane fuel

I think I know what the issue.. This happened to my car. This site has a whole list of cars that have this issue.. they have a part that you can install yourself.. Hope this helps

When a car warms up it enters closed loop state. This is when the computer uses the sensor inputs to adjust air/fuel ratios. MAF - mass air flow sensor - These can be cleaned. Oxygen sensor - Usually when they fail the mixture gets richer. I think yours is getting leaner Camshaft and crankshaft position sensors - They can be affected by heat when one is failing. They provide the computer with timing information An obd tool that reads real time data would help narrow down the problem. You can get an elm327 usb to obd connector on ebay for $10. Then get free software to read the car computer with your computer.

in under hood fuse block, what code or codes do you have?

STICKER ON RADIATOR COVER OR ON UNDER SIDE OF HOOD. PARTS HOUSE CAN GIVE YOU COPY

replace the power steering pump is only way to remedy your problem.

It very well maybe. Is it the pump or the lines? You can get special dye and put it in. Then get a black light to see where it comes out.

with good battery hot wire the starter solenoid.if it starts, the key line is dead.if not, the starter or wires to it are bad (battery cables)

You need to replace the back up lamp thatburned outIf a fuse blew, you got problems, that have no reason toeven exist to cause a short circuit in the wiringIn 60 years of driving you won't have more than 6 fuseever blow & they will be for a wiper motor or someonesabuse of your wiring,corrosion when the car is 20 yearsold etc

Helm.Com for original factory manual that came with it& any factory service manuals you wantI have bought from them for 49 years, but theyare expensive & necessary

The speedometer and odometer gets a signal from the speed sensor in the side of the transmission where the speedo cable once was.The problem could be the speed sensor, or something in the wiring, or in the instrument cluster. Or it could be that the transmission is failing internally.

Try unhooking your battery and leting set 10 min., sometimes at factory we had to do that to do like a reset on radio

check low beam fuse and relay