Very helpful video thanks a bunch my o4 Deville was doing the exact problem I tried everything u recommended it and wala it's was working again thanks u have

I'm having the same problem no way I can take it apart to get to the starter though. Great video thanks for sharing.

Thankfully, I have a great deal of experience with these headaches. It is almost always the ground wire that goes from the passenger side frame rail near the front to the alternator bolt. The engine mounts wear out, the engine rocks back and forth eventually breaking it. Usually before it breaks, it becomes frayed and you will get intermittent starts. Unfortunately I have seen this too many times. I usually get a 32" double terminal end 4 gauge wire from Advance auto and run the wire from the threaded hole in the rear head behind the PS pulley to the original bolt hole on the frame. Be careful to use zip ties to keep it away from the belt. It makes a good ground and the engine starts normally. The problem is the battery is under the seat and the ground goes into the body. Since the starter is in the valley of the engine, you lose the ground connection from the frame to the block when it breaks. It is very common as I mentioned.

It is NOT the starter because when energized directly it WORKS. How can you assume it is the starter when you already tested it and it worked! If it works then must be other thing. Maybe the relay or the constant power that arrives on that relay. By the way the clicks you ear inside the car are much stronger noise than a relay clicking. Those clicks must be other things because of low battery... One thing is for sure. THAT'S NOT A STARTER FAULT! Must be other issue...

I had the similar problem, the security light was on , turn the key , it click and no crank and when it did start, the gauges were misreading . We took the intake manifold off , removed the fuel pump relay and tested the starter by jumping it and worked, we found that it was a bad ground strap were the starter sits. There are two of them. They were thin and brittle and corroded . We installed a new thicker battery ground strap in its place and that fix the issue. The caddy now cranks and starts and the gauges are working properly. All this for 2 brittle corroded ground straps inside the block where the starter sits.

What's the point of checking the fuel pressure if it's not cranking? If it starts cranking and still doesn't start, then fuel may be a concern. Fuel is kind of worthless if it's not cranking in the first place.

I don't remember that body style having side posts. My 08 has top. Gonna have to look at my 02 again. It's been sitting for a long time.

Ignition Control Switch. We just did one with the same problem

I am not a mechanic but seems like to me the best place to start would be to replace that ground end on the battery.

Hey guys just an update on this, the customer wasn’t really keened on fixing the car. He decided to junk it after I was diagnosing it. Which is why I never really had an end diag for this vehicle. I posted the video for entertainment purposes only. Thanks.

I OWN THIS CAR , 2 OF THEM AND LOVE IT GO INTO THE DASH RESET BY HOLDING UP AND CHECK CODES. THEN CLEAR YOUR CODES ONE BY ONE BY DELETING CURRENT CODES MAKE SURE YOUR RUNNING AT 15 V 13-15 WHEN STARTING TRY PUTTING ON SEATBELT , DOORS CLOSED , LIGHTS ON (WORKS FOR LOW BATTERY) DO NOT CONECT DISCONECT BATTERY CABLE, DO NOT USE BOOSTER BOX, USE ANOTHER CAR AND CABLES WHILE YOUR CADDY IS KEY ON ENGINE OFF AND OTHER VEHICLE MUST BE RUNNING (THAT WILL CHARGE UP UR BATT A BIT. KEEP PLAYING WITH KEY (TAKE ALARM OFF YOUR KEY) PUT KEY IN THE DOOR , TURN 2X LEFT 2X RIGHT A FEW TIMES UNTILL SECURITY LIGHT IS BLINKING , KEEP PUTING KEY IN AND OUT , IF NO CRANK , TAKE KEY OUT IGNITION , PUT IT BACK IN. REPEAT THIS STEP UNTIL YOU START FIRST STEP IS TO CHECK ALL CODES (NO SCANNER NEEDED) AND DELETE ALL CODES THAT CAME UP ESPECIALLY ABS IPC IPM (AIR BAG AND ABS) IF YOU NEED MORE HELP ASK ME, DONT SPEND MONEY, JUST MAKE SURE OIL IS TOPPED OFF AND TRANS FLUID ASWELL. CHECK ENGINE OIL LEVEL WHEN CAR WAS SITTING OVERNIGHT BEFORE YOU TURN IT ON TO FIND EXACT LEVEL OF OIL(WIPE DIPSTICK WITH TOWEL) TO GET CORRECT LEVEL THEN AFTER TURNING ON, TURN IT OFF AND ASSESS THE TRANS FLUID LEVEL USE SPECIAL FLUIDS ONLY MUST BE FULL SYNTHETIC MOTOR OIL TRANS FLUID TYPE IS WRITTEN ON TRANS DIPSTICK UNDER TRANS FILL CAP I GOT 2 DEVILLES , A DTS AND DHS

My daughters cadillac had the same problem and the trouble was a bad connection in the box right under the fuses and relays We had to remove the box that had the three large screws and it had large plugs connected to the bottom of the box. You couldn't separate the box because of the three screws would not come out all the way it was made. We ordered and new box from a salvage yard and it fixed the problem. I thought it was the starter also but it wasn't the trouble is in the fuse box with the fuses and relays on it.

it's a ground problem, happened to my 02 caddy same symptoms, after watching your video I came to a conclusion and used jumping cables from negative battery to engine block and the car started, so must be a ground strap to engine block

What are the battery adapter called

Tengo un cadillac dts 07 el mismo problema al jirar la llave no hace nada ni siquiera da marcha solo hace click y se apaga todo que puedo hacer algun consejo y si lo resolviste??

It could be the solenoid in the starter or it could be the crankshaft sensor the upper and the lower I have a 2004 Cadillac deville and I have that same problem and that was the issue

Check your alternator as well.

The problem is called cadillac

The security light blinking like that is normal I believe. It turned off in the run position. If it stayed on it could be an issue.

Or the starter relay is clicking like that because a bad block ground is messing with the ecm/pcm. You checked the ground for the relay, that doesn't mean the ground for the starter is good. They aren't the same thing.

Man I could use your help! I have two cables by the fuse box under the hood red and black and I’m not sure where they hook up! Any help would be appreciated! Thank you

It's going to be the engine ground wire. ...run a good ground to the block and it will fire up..

Did you ever figure this out? Same problems and I can start it by jumping the relay.

What can cause spark issue? Ground. What can cause pretty much every issue it is experiencing? Ground. Couple that with shitty battery and you can spend lots of time and money throwing parts at it.

Well my first videos and hearing the red wing black birds I'm pretty sure and the background you live in south Florida reason why is because I do to 😂. Anyway I got a 2004 Cadillac SLS and it needs a lot of work but it's easy I hope lol.

Did u ever fix the problem

What happened with the caddy? I believe I'm having the same problem but dont want to remove the intake manifold if i dont have to. So I'm very curious about how this turned out.

If the ground wire is wet with oil, from a oil leaking problem, Can be the reason why my car won't start? Is a 2001 cadillac deville, , the battery is good I take it for a test at Auto Zone , I'm trying to start the car but all I heard is a click the came from the engine ,

Its the starter man

ALSO THERMOSTAT WONT OPEN WHEN BATTERY IS TOO LOW, AND FUEL PUMP MIGHT LOOSE POWER, GAUGES MIGHT LOOSE POWER. BATTERY IS NUMBER 1, THEN VACUM AND INTAKE, THROTTLE BODY

My deville did the same thing. Mine did 1 click but no start when trying to start, it turned out to be the starter. Another time when trying to start I get multiple clicks but no start up turns out that it is the battery .

Check the jump wire bolt

I just replaced a fuel pump on 2000 DHS . Before new pump I had a crank but no turn over now I have a clicking start no crank, any advice that might be the next cause of no start ?

I'm having the same problem on my 04 DeVille

Okay everybody listen, the problem to this whole scenario is the three bolts under the fuse box or should I say inside the fuse box need to be as tight as possible they are a ground!!! Tighten all three screws and the car will crank.....

That battery looks like it’s 100 years old even though you are attempting to charge the old battery the cells might be dead to the point where it’s not taking a charge. Start of with a new battery , test the alternator then the starter

It’s the ground. It’s not tight. Terminal and ground attachment

Is the fuel pump pumping

I'm having the same problem with my SRX that has a Northstar has anybody ever solved this it seems to be a common issue but no one has seemed to solve it

3 years too late and maybe the neutral safety switch needs to be replace if you can start the cadi in neutral then the NSS is bad.

Bad engine ground, the ground lead from the motor mount to the engine is broken

Starter works when jumping manually, but you're positive it's the starter, yet have no idea why?!?! Not trying to be a dick, but this is precisely why I do all my own work and no one else touches my vehicles, except for very rare instances.

battery under the seat /wt///..i gota get to sleep !

Please come work on my Cadillac deville cause it's doing the same shit lol because of this video I'm going to try replacing the starter in my Cadillac deville. I really hope that it works. I'll let you know dude

It's climate control. You set the temp and it controls the A/C automatically unless you push the A/C button. Then it disables it from kicking in. Setting it to 60 will run it at full blast. Setting it to 90 runs heat at full blast. I miss the turn dial for the temp. For 06 DTS's they switched it to buttons. :-(

It's not the starter the started turning over

Run a new ground my boy

YOUR BATTERY IS TOO LOW TO POWER THE AIR RIDE AND TPM, AND ABS AND IPC IRC , JUST BECAUSE IT SAYS VOLTS OK ON DASH, DONT MEAN NOTHING, IT MUST BE ON 15V

catch hmm