Thread: 02 Grand Prix/3.8 NA/starts and runs for 2 sec and kills?

Results 1 to 10 of 10
  1. #1 02 Grand Prix/3.8 NA/starts and runs for 2 sec and kills? 
    SE Level Member
    Join Date
    Mar 2015
    Location
    United States
    Posts
    5
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    My issues started almost 1 year ago. I was driving to work and the car just died. The lights and all the electrical still worked. I coasted to the side of the road and tried to restart. The motor would catch, rev to about 1500 rpm, and then die. I towed it to my work and the fun began! It was throwing a MAF code, so I replaced the MAF. No fix. I also tried swapping the MAP sensor, with a known good one. No fix. After several days of head scratching, one of the guys at work tells me his buddy says to try a different ignition key. I think this sounds ridiculous, but what the heck. I try my other key and the car starts and runs.

    Fast forward almost a year. The car has been running fine, but I need to replace the intake manifold gaskets. I do the job, no problems. The car runs fine for 3 or 4 days, but on my way to work the car kills again and leaves me on the side of the road. I manage to start it this time and get it home. I go through and check all the sensor plugs to make sure they are seated properly, blah, blah, blah. The car starts and runs for a couple more days, and then it kills and leaves me on the side of the road again. I tow the car home and it won't start and stay running for several days. I figure its the PassKey system screwing me again, so I order a New Rockies bypass module. This thing is supposed to bypass the passkey system altogether. The day the NR module arrives, I try starting the car, before I install the module, and the dumb thing starts. I go ahead and wire in the module, anyway. I drive the car for several more days and I think my problem is solved. NOPE! It dies on me half way to work, again. I tow it again and now it has been sitting for over a week and it won't stay running. It will start, rev to 1500 rpm and then it stalls. I know the fuel pump is working. I know I have spark. I've read about lots of people having similar problems, but I don't ever see a solution.

    Any suggestions would be appreciated!
    Reply With Quote  
     

  2. #2 Re: 02 Grand Prix/3.8 NA/starts and runs for 2 sec and kills? 
    Killa Bee Scottydoggs's Avatar
    Join Date
    Aug 2010
    Location
    new jersey
    Posts
    39,997
    Thanks (Received)
    63
    Likes (Received)
    166
    Dislikes (Received)
    5
    ever notice if the tack drops to zero before it stalls out? or after it stalls and your cranking it does the tach lay at zero?

    if so sounds like a crank sensor went bad.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
    Reply With Quote  
     

  3. #3 Re: 02 Grand Prix/3.8 NA/starts and runs for 2 sec and kills? 
    SE Level Member
    Join Date
    Mar 2015
    Location
    United States
    Posts
    5
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    Tach drops to zero at the same time as it stalls out. The engine will run for less that 3 seconds. I barely have to crank it, it catches, revs to 1500 and stalls.
    Reply With Quote  
     

  4. #4 Re: 02 Grand Prix/3.8 NA/starts and runs for 2 sec and kills? 
    Killa Bee Scottydoggs's Avatar
    Join Date
    Aug 2010
    Location
    new jersey
    Posts
    39,997
    Thanks (Received)
    63
    Likes (Received)
    166
    Dislikes (Received)
    5
    pull the vac line off the fpr, see if it smell of gas, or if gas comes out the line the fpr is bad.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
    Reply With Quote  
     

  5. #5 Re: 02 Grand Prix/3.8 NA/starts and runs for 2 sec and kills? 
    SE Level Member
    Join Date
    Mar 2015
    Location
    United States
    Posts
    5
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    No gas, or smell. Thanks for the suggestions! Keep 'em comin'!
    Reply With Quote  
     

  6. #6 Re: 02 Grand Prix/3.8 NA/starts and runs for 2 sec and kills? 
    Turbo is the way to go. BillBoost37's Avatar
    Join Date
    Jul 2009
    Location
    W Spfld
    Posts
    26,833
    Thanks (Received)
    53
    Likes (Received)
    90
    Dislikes (Received)
    1
    Can you test fuel pressure? Almost sounds like it doesn't have any. If it has pressure..then it's likely security related.
    I drink..so consider that when reading my posts.

    2010 Audi A6 Dual IC's
    Reply With Quote  
     

  7. #7 Re: 02 Grand Prix/3.8 NA/starts and runs for 2 sec and kills? 
    Killa Bee Scottydoggs's Avatar
    Join Date
    Aug 2010
    Location
    new jersey
    Posts
    39,997
    Thanks (Received)
    63
    Likes (Received)
    166
    Dislikes (Received)
    5
    check fuel pressure at the rail? see if anything shoots out after it stalls.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
    Reply With Quote  
     

  8. #8 Re: 02 Grand Prix/3.8 NA/starts and runs for 2 sec and kills? 
    GTP Level Member 99GT2dr's Avatar
    Join Date
    Dec 2007
    Location
    Cibolo, TX
    Posts
    545
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    Try watching voltage at the pump, see if when the car dies the voltage drops to 0. If so, you know something is killing power to your pump to shut the car down. If the voltage is going to 0, you could try putting a 12v source directly to the pump, start it up and see if it stays running. Then its just a matter of looking at the schematic and figuring out wtf is killing the power.
    Reply With Quote  
     

  9. #9 Re: 02 Grand Prix/3.8 NA/starts and runs for 2 sec and kills? 
    SE Level Member
    Join Date
    Mar 2015
    Location
    United States
    Posts
    5
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    I know fuel comes out of the test valve, below the FPR. I haven't put a gauge on it, yet.

    I have bypassed the security system with this: http://newrockies.com/passlock-bypass/ I don't get a flashing security light on the dash. I actually never did.

    I did pull the fuel pump relay and jumpered between the two contacts to make the fuel pump run on high speed. I could hear the pump running, before starting and after, but this made no difference.

    Thanks again for all the help!
    Reply With Quote  
     

  10. #10 Re: 02 Grand Prix/3.8 NA/starts and runs for 2 sec and kills? 
    SE Level Member
    Join Date
    Mar 2015
    Location
    United States
    Posts
    5
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    Any more suggestions?
    Reply With Quote  
     

Similar Threads

  1. Starts, runs fine for a week, then won't start for 5 minutes, then starts and runs...
    By Summit670 in forum 3.8L V6 Naturally Aspirated (L36)(L26)
    Replies: 7
    Last Post: 04-26-2012, 05:33 PM
  2. My car starts up, runs, then dies. Please help
    By Onos in forum General Tech Discussion
    Replies: 19
    Last Post: 03-13-2012, 11:18 PM
  3. 2001 Grand Prix GT starts then stalls then starts up and is fine???
    By 81X11 in forum 3.8L V6 Naturally Aspirated (L36)(L26)
    Replies: 12
    Last Post: 02-06-2012, 10:29 PM
  4. Car starts runs for 3 sec and dies
    By rtwilliamson in forum General Tech Discussion
    Replies: 11
    Last Post: 06-21-2010, 01:37 AM
  5. car starts, runs for a second, then dies
    By 2000GTP in forum 3.8L V6 Supercharged (L67)(L32)
    Replies: 9
    Last Post: 03-22-2009, 11:34 AM
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
  •