Cadillac Cars & Trucks - Recent Questions, Troubleshooting & Support

Check it for error codes. Test the fuel pump pressure.

Cadillac Cars &... | Answered 3 days ago

You disconnected the battery and upset the anti-theft system. The car isn't letting you take it anywhere!

Number 1 tip, when you remove the battery, maintain power using wires, jump leads or a charger so the power is never broken.

And you can't disable the system, you have to fix what's wrong. It is there to stop exactly what you are trying to do!

Tip & How-To about Cars & Trucks
Resetting a Vehicle Anti-Theft System
This is how you reset an anti theft system if you have the anti-theft light on, or your car is cranking, but you have no spark. The car starts and dies when you select a gear, or the car drives 100 yards and stops!

Doing a full reset of the anti-theft system.

Disconnect both battery leads for at least two hours.
Hold the negative and positive leads together for 5 minutes to fully discharge any power.
Put the key in the ignition, but not turned on. VERY IMPORTANT!
Connect the positive lead.
Connect the negative lead in one swift movement.
Wait 15 minutes for the system to fully reset.

Cadillac Cars &... | Answered on Jan 14, 2020

The pcv valve is at the rear of the engine on the passenger side down behind the valve covers. It's a $200.+ item that I could only find through NAPA. Other places show it but no go. It's an aluminum part nothing like the old pcv valves. It has 4 bolts that fastens it to the block.
It is a royal pain to change.
There are hoses running from it up to the plastic pieces on top of the plenum running forward. Those parts get clogged too.
I'm changing mine now and hope it cures the quart of oil every 200 mi. This is what I have read is the problem.

2003 Cadillac... | Answered on Jan 12, 2020

Starters don't have a computer, too many amps. Battery - Solenoid - Starter operated by the key and a relay, number 42.

Cadillac Cars &... | Answered on Jan 09, 2020

I guess instead of waiting for answers here just google it.. or like go for u can simply get answers to your questions there..

Cadillac Cars &... | Answered on Jan 03, 2020

Option codes are listed several places in the vehicle. Start with the glove box, then the trunk. Almost all DHS's are FE3.

Cadillac Cars &... | Answered on Jan 03, 2020

Maf sensor doesn't have a fuse , PCM - engine computer supplies voltage to maf sensor . Your best bet , take it to a qualified repair shop.

Cadillac Cars &... | Answered on Jan 01, 2020

I think i know what the issue is i had the same problem. It has to do with the security system failing. i found a site that sells a module that will bypass it and allow your car to start every time. You can even install it yourself. It is also guaranteed . If it doesnt work u can send it back. I did mine 5 years ago and i haven had an issue since. Your car is on the list for this problem. Check it out i hope it helps ya

2002 Cadillac... | Answered on Dec 26, 2019

How to take off a Cadillac 2002 DeVille fender

2004 Cadillac... | Answered on Dec 23, 2019

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