Thread: DoD Questions

Results 1 to 12 of 12
  1. #1 DoD Questions 
    GT Level Member Hurricane87's Avatar
    Join Date
    Jul 2016
    Location
    Brevard County, FL
    Posts
    404
    Thanks (Received)
    2
    Likes (Received)
    7
    Dislikes (Received)
    11
    Chats
    2
    I believe I asked this before, on the deceased GXP, and never got an answer.

    I'm getting, at best, 21 MPG, and I can't remember the last time I saw a cloud of oil smoke. Is it possible for the DoD to turn itself off?

    And i know I "shouldn't," but if I wanted to, how would I go about diagnosing the problem and reactivating it?
    Reply With Quote  
     

  2. #2 Re: DoD Questions 
    Turbo is the way to go. Fivefingerdeathpunch's Avatar
    Join Date
    Sep 2009
    Location
    Rogers, MN
    Posts
    21,030
    Thanks (Received)
    21
    Likes (Received)
    45
    Dislikes (Received)
    0
    Chats
    83662
    If there is a check engine light related to that system then it could be disabled.

    Otherwise it should always be working in 3rd and 4th gear if nothing like that is happening or that it was disabled with a tune.

    If you can't feel/hear it drop 4 cylinders then I'd want it on a scan tool to see if it's really happening.

    SMGPFC Member #1
    Reply With Quote  
     

  3. #3 Re: DoD Questions 
    GT Level Member Hurricane87's Avatar
    Join Date
    Jul 2016
    Location
    Brevard County, FL
    Posts
    404
    Thanks (Received)
    2
    Likes (Received)
    7
    Dislikes (Received)
    11
    Chats
    2
    The only check engine light on is a vacuum leak, but it was behaving the same before that happened. I've never really been able to fell/hear it, even on my Monte Carlo, where the DIC told me which mode it was in.

    What sort of scan tool can I use while I'm driving?
    Reply With Quote  
     

  4. #4 Re: DoD Questions 
    GT Level Member Hurricane87's Avatar
    Join Date
    Jul 2016
    Location
    Brevard County, FL
    Posts
    404
    Thanks (Received)
    2
    Likes (Received)
    7
    Dislikes (Received)
    11
    Chats
    2
    Bump.....
    Reply With Quote  
     

  5. #5 Re: DoD Questions 
    SE Level Member
    Join Date
    Nov 2015
    Location
    Ontario
    Posts
    17
    Thanks (Received)
    2
    Likes (Received)
    2
    Dislikes (Received)
    0
    Chats
    200
    Where is the ign coil number 7 located on a 5.3L LS4?
    Reply With Quote  
     

  6. #6 Re: DoD Questions 
    SE Level Member
    Join Date
    Nov 2019
    Location
    WI
    Posts
    83
    Thanks (Received)
    0
    Likes (Received)
    7
    Dislikes (Received)
    0
    Chats
    0
    Quote Originally Posted by Crispy View Post
    Where is the ign coil number 7 located on a 5.3L LS4?
    Cylinder 7 is on the front bank on the far right side. 1/3/5/7 left to right on the front side.
    Reply With Quote  
     

  7. #7 Re: DoD Questions 
    GT Level Member Hurricane87's Avatar
    Join Date
    Jul 2016
    Location
    Brevard County, FL
    Posts
    404
    Thanks (Received)
    2
    Likes (Received)
    7
    Dislikes (Received)
    11
    Chats
    2
    Anyone got an answer to this question?
    Reply With Quote  
     

  8. #8 Re: DoD Questions 
    GT Level Member penright's Avatar
    Join Date
    Mar 2013
    Location
    United States
    Posts
    260
    Thanks (Received)
    0
    Likes (Received)
    1
    Dislikes (Received)
    0
    Chats
    108
    Quote Originally Posted by Hurricane87 View Post
    I'm getting, at best, 21 MPG,
    Is that bad for a GXP? Really asking, that is what I am getting.
    07 Grand Prix GXP (My Daily Driver and future toy) (120,000+)
    97 Grand Prix GT (Project Car) (178,000+)
    02 Mustang Convertible (Wife's Toy) (75,000+)
    17 Honda Civic (Wife's Daily Driver)
    Reply With Quote  
     

  9. #9 Re: DoD Questions 
    GT Level Member Hurricane87's Avatar
    Join Date
    Jul 2016
    Location
    Brevard County, FL
    Posts
    404
    Thanks (Received)
    2
    Likes (Received)
    7
    Dislikes (Received)
    11
    Chats
    2
    "At best" means "45 mph in fourth gear on a surface road." Average is 17 at best. I used to average 22 on my LS4 Monte Carlo, which had the decency to tell me which mode it was in. Why that feature is missing from a more expensive car that is higher in the GM hierarchy is a mystery that will never be explained.
    Reply With Quote  
     

  10. #10 Re: DoD Questions 
    GT Level Member Hurricane87's Avatar
    Join Date
    Jul 2016
    Location
    Brevard County, FL
    Posts
    404
    Thanks (Received)
    2
    Likes (Received)
    7
    Dislikes (Received)
    11
    Chats
    2
    Can anyone tell me the name of a scan tool I can use while driving? And what I should look for on that scan tool?
    Reply With Quote  
     

  11. #11 Re: DoD Questions 
    GXP Level Member Turbocharged400sbc's Avatar
    Join Date
    Jan 2008
    Location
    hangover park IL
    Posts
    2,714
    Thanks (Received)
    4
    Likes (Received)
    11
    Dislikes (Received)
    0
    Chats
    910
    i use both a snapon mt2500 "red brick" and a snapon modis

    i believe the chinese GM tech2 clones are below 500$ nowadays
    ~James~ Psychotic Gearhead
    projects: 84 Cressida waGN~ 90 LN3 3800, equal length headers, T70, 89 700r4, misc parts,
    1994 Oldsmobile 442 (462ci-4wd-2 engines) L67/4t80e^2,
    00 Turbo Regal 608 fwhp 575ftlbs at 5500rpm, 98 WhippledRiv, 97 GTP
    Reply With Quote  
     

  12. #12 Re: DoD Questions 
    GrandPrix Junkie SgtMarshal's Avatar
    Join Date
    Feb 2012
    Location
    Kemmerer, Wyoming
    Posts
    4,690
    Thanks (Received)
    10
    Likes (Received)
    25
    Dislikes (Received)
    0
    Chats
    60223
    you could pick up a bluetooth adapter and download the torque application. I'm not sure if it will say you are in 4 cylinder mode, but the adapter is about 20 bucks and there is a free version of torque.
    Reply With Quote  
     

Similar Threads

  1. Window Tint Questions and Rear Speaker Questions
    By Wisconnie in forum General Grand Prix Discussion
    Replies: 14
    Last Post: 06-22-2013, 07:17 PM
  2. a few more questions
    By Freddy in forum Visual/Body Modifications
    Replies: 7
    Last Post: 02-13-2012, 01:46 AM
  3. Replies: 2
    Last Post: 01-30-2012, 09:40 AM
  4. A few GXP questions
    By black954 in forum General Tech Discussion
    Replies: 6
    Last Post: 11-16-2011, 12:05 AM
  5. Alky Questions & Other Related Questions.
    By rynoman03 in forum 3.8L V6 Supercharged (L67)(L32)
    Replies: 24
    Last Post: 03-22-2010, 07:57 AM
Tags for this Thread

View Tag Cloud

Bookmarks
Bookmarks
Posting Permissions
  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •