Motor surging and stalled out
Cadillac
 

Cadillac Forums | Help Us Help You | Advertise | Cadillac Parts | Cadillac News | Cadillac Classifieds / (Old System)

Cadillac Technical Archive | Cadillac Dealers | Cadillac Reviews | Cadillac Dealer Reviews | Cadillac Vendors

CadillacForums.com is the premier Cadillac Forum on the internet. Registered Users do not see the above ads.
+ Reply to Thread
Page 1 of 2 1 2 LastLast
Results 1 to 15 of 17
Cadillac STS Forum - 2005 through 2012 Discussion, Motor surging and stalled out in Past Cadillac Vehicle Discussion; Hi everyone, I am new here. I recently bought a 2006 sts4 with the v8. Two daysago i took the ...
  1. #1
    Cummins4LF is offline Cadillac Owners Member
    Automobile(s): 2006 sts4
    Join Date
    Jul 2013
    Location
    Athens, Pennsylvania
    Age
    22
    Posts
    13

    Motor surging and stalled out

    Hi everyone, I am new here. I recently bought a 2006 sts4 with the v8. Two daysago i took the air ffilter out of the air box to see what it looked like. It was really cloggedup so i put it back in with the iintention of replacing it shortly. I started the car the next morning and the engine light was on. I did not notice it driving any different. I took the car to had the codes check. There was like 8 of them. I don't remember them all but I know bank 1 and 2 were lean, the man sensorwas rreading g low air and a bunch of other codes. The guy said they were all relatedto tthe air cleaner being bad. I replaced the air clean and everything has gone down hill. Since then, the car has been running bad. When under a medium load, the motor would cut in and out and surge. The car has eve been stalling out on me out of no where. Please help me guys. Car has only 50k miles on it.

  2. Remove Advertisements
    CadillacForums.com
    Advertisements
     

  3. #2
    1BadCadSTS's Avatar
    1BadCadSTS is offline Cadillac Owners Connoisseur
    Automobile(s): 05 STS4
    Join Date
    Nov 2010
    Posts
    3,571
    You either don't have the air box together correctly or the air tube. My suggestion is if you can't figure out what you did leave it to someone who knows what they are doing to fix it properly. Those codes indicate unmetered air entering the intake.

  4. #3
    Cadillac Cust Svc's Avatar
    Cadillac Cust Svc is offline Cadillac Customer Service
    Automobile(s): All Cadillac vehicles!
    Join Date
    Mar 2010
    Location
    Michigan
    Posts
    10,909

    Re: Motor surging and stalled out

    Quote Originally Posted by Cummins4LF View Post
    Hi everyone, I am new here. I recently bought a 2006 sts4 with the v8. Two daysago i took the air ffilter out of the air box to see what it looked like. It was really cloggedup so i put it back in with the iintention of replacing it shortly. I started the car the next morning and the engine light was on. I did not notice it driving any different. I took the car to had the codes check. There was like 8 of them. I don't remember them all but I know bank 1 and 2 were lean, the man sensorwas rreading g low air and a bunch of other codes. The guy said they were all relatedto tthe air cleaner being bad. I replaced the air clean and everything has gone down hill. Since then, the car has been running bad. When under a medium load, the motor would cut in and out and surge. The car has eve been stalling out on me out of no where. Please help me guys. Car has only 50k miles on it.
    Hello Cummins4LF,

    I apologize that you are experiencing an issue with your STS surging and stalling. If you are interested in working with a dealership, I would like to assist you in working with them. Since you are new to the forum and cannot private message us, you can send your information to socialmedia@gm.com. I would need your name, contact info, VIN, mileage, and dealership you would like to work with. When you send your email, please include “ATTN GREG” in the subject line so that it gets delivered straight to me. Thank you very much for taking the time to read my post. I hope to hear from you soon.

    Gregory W.
    Cadillac Customer Care

  5. #4
    EChas3's Avatar
    EChas3 is online now Cadillac Owners Master
    Automobile(s): 2006 STS4 V8 1SG & 2007 STS V8 1SE
    Join Date
    Jun 2008
    Location
    Cedarburg, WI
    Age
    56
    Posts
    7,229

    Re: Motor surging and stalled out

    The air box can be a bit tricky and you've obviously discovered the objective is to disturb things as little as possible. At least one issue was probably that one or more of the retainiing tabs on the bottom of the airbox slipped out of place. Did you spread the halves more than an inch or two? There are several other components you might have upset.

    Did you get the codes read by a Cadillac dealer? Most inexpensive code readers will not provide full information on your STS. You will find value in being on good terms with the best dealer in your area. I'm lucky enough to have two good ones but also have a local guy that does some things that I just don't want to. Some things just about require a dealer so don't fool yourself; they are sometimes necessary.

  6. #5
    C&C's Avatar
    C&C
    C&C is offline Cadillac Owners Connoisseur
    Automobile(s): Cadillac STS (2011)
    Join Date
    Feb 2008
    Location
    Mount Pleasant, SC
    Age
    63
    Posts
    1,569

    Re: Motor surging and stalled out

    First things first, retrace your steps in your dis-assembly and make sure you have reconnected all the sensors; it does appear that the 'damage' was self-inflicted.

  7. #6
    Cummins4LF is offline Cadillac Owners Member
    Automobile(s): 2006 sts4
    Join Date
    Jul 2013
    Location
    Athens, Pennsylvania
    Age
    22
    Posts
    13

    Re: Motor surging and stalled out

    Thank you all for the input. I will check the air box when I get home from work. Now that I think about it, I think there was a gap along the seam of the air box toward the bottom. I had to pry the two halves apart a good 2 or 3 inches to get the old filter out and the new on in. Will the air box cause that many issues in the motor like stalling and surging? Has anyone here put on the volant CAI? Just curious to see if it comes with everything that is need to install and if it causes the check engine light. Thanks again for everyone responses. I will shoot you an email Greg as soon as I can.

  8. #7
    1BadCadSTS's Avatar
    1BadCadSTS is offline Cadillac Owners Connoisseur
    Automobile(s): 05 STS4
    Join Date
    Nov 2010
    Posts
    3,571

    Re: Motor surging and stalled out

    I have a Volant... sure is pretty....

    and YES again you have unmetered air entering the intake it will mess up with your fuel to air ratio and stall it. similar to having a vacuum line disconnected.

  9. #8
    EChas3's Avatar
    EChas3 is online now Cadillac Owners Master
    Automobile(s): 2006 STS4 V8 1SG & 2007 STS V8 1SE
    Join Date
    Jun 2008
    Location
    Cedarburg, WI
    Age
    56
    Posts
    7,229

    Re: Motor surging and stalled out

    Did you use an OEM air filter? Although many members swear by 'upgrades', it is very easy to over-treat a K&N and some members have reported issues with some aftermarket filters.

    Opinions vary widely on the Volant. I'm in the camp that would be doing it for the sound at WOT. I believe claims of gains in performance are exagerated. But it's your car... Have fun!

  10. #9
    Cummins4LF is offline Cadillac Owners Member
    Automobile(s): 2006 sts4
    Join Date
    Jul 2013
    Location
    Athens, Pennsylvania
    Age
    22
    Posts
    13

    Re: Motor surging and stalled out

    Hey guys, back with some more questions. When I finally got a chance to work on my car, I found that I had not installed the air filter properly and the hose running from the middle of the air intake tube to the top of the right valve cover was not hooked up. I fixed all of that. It seemed to possibly run smoother but the light is still on. Today, I decided to go out for a ride. Everything is smooth until you really get into the throttle. When you roll into the throttle and get to about half throttle, it starts surging bad. Its like someone slamming on the brakes and letting go over and over until you let off of the throttle. This only seems to happen in first and second gear. Anyone have any ideas? I need help ASAP. I can't drive my car like that.

  11. #10
    1BadCadSTS's Avatar
    1BadCadSTS is offline Cadillac Owners Connoisseur
    Automobile(s): 05 STS4
    Join Date
    Nov 2010
    Posts
    3,571
    I would make sure everything is still hooked up right. Also it will have to relearn the fuel tables as you've driven it how long without it hooked up correctly. Also will turn off the cel after 3 drive cycles if the problem is truly fixed.

  12. #11
    Cummins4LF is offline Cadillac Owners Member
    Automobile(s): 2006 sts4
    Join Date
    Jul 2013
    Location
    Athens, Pennsylvania
    Age
    22
    Posts
    13

    Re: Motor surging and stalled out

    Well, I spent about 2 hours driving the car today. The surging has seemed to stopped, or at least dumbed itself down a little. The problem I am still having is the stalling. It stalled 3 times on me while I was driving. It will just shut off with no warning. I was just cruising along an it stopped running. I will look it over again tomorrow when I have some light to see what I am doing. Thanks for everyone's help so far. I really appreciate it.

  13. #12
    amunderdog is offline Cadillac Owners Connoisseur
    Automobile(s): 1994 SLS x 2 ---- 1993 Eldorado Sport ----- 1994 Deville 4.9
    Join Date
    Feb 2010
    Location
    Sunbright, TN
    Posts
    1,164

    Re: Motor surging and stalled out

    I would check the fuel pressure next.

  14. #13
    EChas3's Avatar
    EChas3 is online now Cadillac Owners Master
    Automobile(s): 2006 STS4 V8 1SG & 2007 STS V8 1SE
    Join Date
    Jun 2008
    Location
    Cedarburg, WI
    Age
    56
    Posts
    7,229

    Re: Motor surging and stalled out

    The fuel filter is ahead of the RR wheel and requires a special tool; but not expensive. I hope it's not the fuel pump.

  15. #14
    Cummins4LF is offline Cadillac Owners Member
    Automobile(s): 2006 sts4
    Join Date
    Jul 2013
    Location
    Athens, Pennsylvania
    Age
    22
    Posts
    13

    Re: Motor surging and stalled out

    Okay, back with another update. I had my gf take the car and get it inspected. She said when she took the car to get it inspected, the check engine light was off. The guy at the inspection shop checked the computer anyway and there was one code. My gf didnt really know what he was talking about. She isnt exactly car smart. Anyway, he reset the codes and all was well for about two drives. On the third "run cycle" the light came back on. I havent had enough time to get the code checked again, but i guess its back to bucking. I have double and tripled checked everything that i may have touched or accidently touched. The only thing i found was on the air box. I was getting ready to take the MAF sensor out to see if maybe the contacts were dirty. When i went to loose the first bolt, it wasnt even tight. I looked at the gasket, there were pieces missing and some of the gasket looked melted. Do you guys think it could have been getting air from around the MAF sensor?

  16. #15
    1BadCadSTS's Avatar
    1BadCadSTS is offline Cadillac Owners Connoisseur
    Automobile(s): 05 STS4
    Join Date
    Nov 2010
    Posts
    3,571
    If the car was fine until you messed with the air box and now its throwing lean codes I find it very hard not to be related. If it looks like a duck and quacks like a duck then obviously its a duck...

    Where are you located. Maybe one of our other members is close by to connect it right for you.

Quick Reply Quick Reply

Register Now

Please enter the name by which you would like to log-in and be known on this site.
If you do not want to register, fill this field only and the name will be used as user name for your post.

Please enter a password for your user account. Note that passwords are case-sensitive.

Please enter a valid email address for yourself.

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Bookmarks

Cadillac Posting Rules

  • You may post new threads
  • You may post replies
  • You may not post attachments
  • You may not edit your posts
Read about Lincoln | Buick | Kia Forte Forum
Need products for your Cadillac? Check out your options at the links below:

custom floor mats | Cadillac Chrome and Black Chrome Wheels | window tinting