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'07 Caddy SRX 3.6L AWD just died. help!


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  • 5 weeks later...

Ok, just had the time to get back into it. I replaced the alternator. It wasnt recharging after i jumped the battery so to rule out that i decided it wouldnt hurt to replace. Just finished it yesterday and took the battery back for a charge up. Installed the battery this morning. It wont start. Though it has the electrical power to do it. Doesnt seem like it has enough power in the starter at all and makes a weird sound. Just let it turn over a few times and let it be. before i tried to start it, got an engine warning light. So its throwing codes. 

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On 6/24/2017 at 4:01 PM, BravoSierra said:

Ok, just had the time to get back into it. I replaced the alternator. It wasnt recharging after i jumped the battery so to rule out that i decided it wouldnt hurt to replace. Just finished it yesterday and took the battery back for a charge up. Installed the battery this morning. It wont start. Though it has the electrical power to do it. Doesnt seem like it has enough power in the starter at all and makes a weird sound. Just let it turn over a few times and let it be. before i tried to start it, got an engine warning light. So its throwing codes. 

 Is it a clicking noise?  Can you make a video  of it?  Does the engine turn over at all?

Pre-1995 - DTC codes OBD1  >>

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Wife has been sick and need her help start the car while I record, probably this evening before I can get a short vid of it. The Actron says two low voltage codes. C0899 for the ABS and P0562 for the TCM. Other than that, no other codes. It shows 12.36 Volts until I jumped it, went up to 13.5 volts roughly during the jump. While jumped, still didn't start. Definitly get you a vid. 

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That sounds like a bad battery or bad connection someplace.  Can you observe the voltmeter when you crank it?  It is possible you will see it drop to like 8 volts.  A jump would not help in that instance as the battery creates a huge draw.

Crank it with a voltmeter connected 

Pre-1995 - DTC codes OBD1  >>

1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm

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13 hours ago, BravoSierra said:

Yes, it drops from the 13.5 down to 12.3 after cranking. I could vid the Actron which shows the starting voltage and while I crank..

 

  I don't mean AFTER cranking, I mean DURING cranking, what does it drop to?

Pre-1995 - DTC codes OBD1  >>

1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm

How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/

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13 hours ago, BravoSierra said:

http://vid1342.photobucket.com/albums/o761/BravoSierra71/19569340_1938803783029963_1889459935754846208_n_zpslqrydz7f.mp4

 

heres a vid. Hopefully the site will allow it. Otherwise just copy and paste the link.

I went back to your original post, engine died and you smelled burning.  You replaced your battery and the symptom didn't change, correct?

Have you checked all fuses?  

We need to determine if you have spark.  Is this a coil pack system or individual coils on each plug?  Can you take a photo of one of the banks and post it?

Can you get access to a fuel pressure gauge?

The burning smell is an important clue originally we thought it was accessory based, a bad idler wheel or seized accessory.

If a relay failed, I doubt you would smell burning. 

@Logan can an ignition control module fail knocking out spark and is it possible that you would smell it burning if it did?

Can an alternator fail totally and put out zero volts and stop the engine from starting due to insufficient current to the coils?  An alternator will cause a burning smell when it fails, maybe the battery that showed 9 volts drew too much frying the regulator?

Pre-1995 - DTC codes OBD1  >>

1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm

How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/

Cadillac History & Specifications Year by Year  http://www.motorera.com/cadillac/index.htm

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I took a vid of the voltage drop but having a time of posting it. So with it jumped, I start at 13.3V or so, as its turning over, it goes down to 10.7V during cranking. Ive looked at the top of the fuses with a flashlight, and nothing appears obvious, I'm going through them one by one now. Relays look good. I asked last night to my neighbor is a shade tree mechanic as it turns out. He has a fuel pressure gauge he'd let me borrow this weekend. I'm not sure what you mean by banks, but I'm guessing you'd like for me to get a close up of where the spark plugs are at.

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Intitally after it died, I checked the voltage on the battery at 9.9 volts. So I went and had Oriellis recharge the battery. It started after reinstall just fine with no engine light, alls well. except during the run the voltmeter wasn't showing that the battery was being recharged. That's where I decided to change the alternator. After the change out is where it wouldn't start again.

 

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Was that a rebuilt alternator?  From O'Reillys?  Is that a lifetime warranty?

It started before the alternator change

Your voltage is dropping down to 10.7 (not good, is the other car running?)   PS, don't hold the key longer than 10 seconds

Alternators have a 12 volt line to the battery can you check if it is connected, usually connected with a 10mm nut or so.

Have you checked fuel pressure?

Do you smell fuel.

Are you setting any codes?

Pull the following fuses and check for continuity injectors, ignition, fuel pump

Buy a spark tester to check for spark.  However is this coil on plug?  Is that photo above of the coils?  We need to determine that you are getting spark

I had this once with a 66 cadillac 429 at college, it ended up being a timing gear and I changed it.  Keep your fingers crossed.  I was consulting with a service manager at my uncles caddy dealer, we thought it was a collapsed resonator and I hacksawed it off...nope...  I hate to say this but your engine sounds like there may be valve issues from the way it sounds when it cranks.  Lets eliminate everything, but you may need a cylinder compression test

Pre-1995 - DTC codes OBD1  >>

1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm

How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/

Cadillac History & Specifications Year by Year  http://www.motorera.com/cadillac/index.htm

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Here is a spark tester toward the end

 

 

Pre-1995 - DTC codes OBD1  >>

1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm

How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/

Cadillac History & Specifications Year by Year  http://www.motorera.com/cadillac/index.htm

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Error, moderator can delete this

 

Pre-1995 - DTC codes OBD1  >>

1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm

How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/

Cadillac History & Specifications Year by Year  http://www.motorera.com/cadillac/index.htm

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On 6/28/2017 at 7:45 PM, BravoSierra said:

http://vid1342.photobucket.com/albums/o761/BravoSierra71/19569340_1938803783029963_1889459935754846208_n_zpslqrydz7f.mp4

 

heres a vid. Hopefully the site will allow it. Otherwise just copy and paste the link.

After listening to you crank again, you need to look at the possibility of a bad timing chain discussed at this link.  The evenness of the cranking I don' t like.  But go directly to checking thebfuel pressure and spark to eliminate that.   If that is ok, a compression test must be done.  We may have been thrown off by the burning smell...

http://www.gminsidenews.com/forums/f53/gm-3-6l-timing-chain-problems-99141/#/topics/99141

@Logan. Logan what do you think about this, listen to the engine crank at the link the owner posted at the top here, its an 07, 3.6 srx

 

Pre-1995 - DTC codes OBD1  >>

1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm

How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/

Cadillac History & Specifications Year by Year  http://www.motorera.com/cadillac/index.htm

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@BravoSierra

If this is a timing chain you want to look into this

 

 

Pre-1995 - DTC codes OBD1  >>

1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm

How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/

Cadillac History & Specifications Year by Year  http://www.motorera.com/cadillac/index.htm

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Was that a rebuilt alternator?  From O'Reillys?  Is that a lifetime warranty? YES

It started before the alternator change

Your voltage is dropping down to 10.7 (not good, is the other car running?)   PS, don't hold the key longer than 10 seconds

Alternators have a 12 volt line to the battery can you check if it is connected, usually connected with a 10mm nut or so. YES, checked that.

Have you checked fuel pressure? No, I'll need help with that, I'll have the neighbor look too, he has the fuel pressure tester..

Do you smell fuel. No

Are you setting any codes? I cleared the two previously mentioned codes yesterday after that vid. I tried to restart the vehicle to see fresh codes. Codes did NOT come back and shows no codes, yet the engine light is on.

Pull the following fuses and check for continuity injectors, ignition, fuel pump

Buy a spark tester to check for spark.  However is this coil on plug?  Is that photo above of the coils?  We need to determine that you are getting spark I can't find spark plugs on this, not in the usual positions anyhow. I'm believing the picture is likely fuel injection? I can have neighbor look at it and help sniff that out.

I had this once with a 66 cadillac 429 at college, it ended up being a timing gear and I changed it.  Keep your fingers crossed.  I was consulting with a service manager at my uncles caddy dealer, we thought it was a collapsed resonator and I hacksawed it off...nope...  I hate to say this but your engine sounds like there may be valve issues from the way it sounds when it cranks.  Lets eliminate everything, but you may need a cylinder compression test

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Let me know how the fuel pressure test turns out

Check it with key ON

And check it while cranking

Pre-1995 - DTC codes OBD1  >>

1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm

How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/

Cadillac History & Specifications Year by Year  http://www.motorera.com/cadillac/index.htm

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