Results 1 to 8 of 8

99 Firebird 3.8 trouble...help...

This is a discussion on 99 Firebird 3.8 trouble...help... within the V6 forums, part of the Vehicle Specific category; Hi, I bought a 99 Firebird with the 3.8 V6 2 weeks ago. The car is near perfect with only ...

  1. #1
    Junior Member
    Join Date
    Aug 2005
    Location
    mn
    Age
    56
    Posts
    22

    99 Firebird 3.8 trouble...help...

    Hi,
    I bought a 99 Firebird with the 3.8 V6 2 weeks ago. The car is near perfect with only 47,000 miles. A girl owned it and drove it 4,000 miles in the last 4 year, only putting on 800 last year after having new plugs,wires,filters changed, then it sat from Sept. 07 until I bought it. When I picked it up they had just started it for the first time since last sept. and it was almost out of fuel, was chugging, dying at stop signs, etc. I figured it was just bad gas from sitting, so I payed for it and drove right to a gas station and filled her up with premium. Well, it runs great on the highway, has lots of power, but after 500 miles of driving and adding seafoam, injection cleaner, etc, it hasn't gotten much better. I them assumed an injector was stuck open, went to the local junkyard and bought a full set of injectors. It idled great right away, but as it warmed up it went right back to the same thing. It is obvious that it is getting way to much fuel at idle, it gets loaded up after a few minutes of idling, where you have to revit good to get it cleared out. It runs perfect down the highway, is faster than I ever thought a 6 cylinder could be without a hint of a miss. It is just getting way too much fuel at idling and low speeds. Any ideas ? The local advance auto says the codes say rich condition on right and left bank and misfire. I haven't had it to a shop with a real scanner yet, just wondering if anyone has had a similar problem before I spend more money. Thanks

  2. #2
    Member
    Join Date
    Nov 2005
    Location
    scottsboro, al
    Age
    32
    Posts
    291

    red
    2001 v6 camaro

    a few things come to mind, clogged fuel filter (cheap thing to check, new one could have been clogged by restarting it with old gas) fuel regulator, and fuel pump.

  3. #3
    Junior Member
    Join Date
    Aug 2005
    Location
    mn
    Age
    56
    Posts
    22
    Since it's getting too much fuel, I don't see how it could be the filter.......I thought of the pump, if the pump is too weak, will the injectors not work properly ?.....the regulator sounds plausible, if there's too much pressure could it be pushing fuel through the injectors ? I don't know exactly how injectors function, could too high or too low fuel pressure cause them to let too much fuel into the engine ? If not, something is telling the injectors to put too much fuel in at idle.....like I said it runs perfect on the highway and when you step on it.

  4. #4
    Member
    Join Date
    Nov 2005
    Location
    scottsboro, al
    Age
    32
    Posts
    291

    red
    2001 v6 camaro

    i would say their is now ay to tell if its loading up on fuel at idle or not. It could be starving for fuel as well, only way to tell is by a scanner.

  5. #5
    Junior Member
    Join Date
    Aug 2005
    Location
    mn
    Age
    56
    Posts
    22
    It's very obvious that it's loading up on fuel at idle, acts just like an old carburated car with the choke stuck partway on, rev it up and clean it out then it's fine for a while.

  6. #6
    Junior Member
    Join Date
    Aug 2005
    Location
    mn
    Age
    56
    Posts
    22
    Just wanted to give an update, I pulled the vacuum hose off the fuel pressure regulator and the was fuel spraying out of the regulator, that vacuum line runs to the back of the intake. I replaced the regulator and it runs fantastic !

  7. #7
    Member
    Join Date
    Nov 2005
    Location
    scottsboro, al
    Age
    32
    Posts
    291

    red
    2001 v6 camaro

    good to hear, glad we could help.

  8. #8
    Member
    Join Date
    Dec 2005
    Location
    Cedar Rpaids,IA
    Age
    37
    Posts
    354

    Red
    1998 Camaro SS

    Quote Originally Posted by beel61 View Post
    Just wanted to give an update, I pulled the vacuum hose off the fuel pressure regulator and the was fuel spraying out of the regulator, that vacuum line runs to the back of the intake. I replaced the regulator and it runs fantastic !
    My Gf 99 Camaro had the same thing happen. It seems to be a common failure on the V6s.
    1998 Camaro SS Hard Coupe Bright Red #1593
    Mods: Lots!!, still my daily driver except for winter
    383rwhp 370rwft/lbs

    1979 Corvette
    Mods Lots!!, weekend cruiser
    325rwhp and 320rwft/lbs

    2007 Dodge Ram 1500 4x4 (Yes its got a HEMI)
    Mods: Catback, BFI CAI, Winter daily driver

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. For Sale: Firebird gone! 98-02 firebird camaro parts left in my garage
    By JayTA98 in forum Parts For Sale / Trade
    Replies: 24
    Last Post: 03-08-2015, 05:25 PM
  2. The Super Bowl is in trouble. Big trouble.
    By 5.0THIS in forum Almost Anything Goes
    Replies: 63
    Last Post: 02-02-2015, 06:20 AM
  3. 1972 Pontiac Firebird Vs. 2001 Firebird Formula - HPP Paveme
    By Ed Blown Vert in forum Firebird / WS6
    Replies: 0
    Last Post: 09-05-2012, 07:10 PM
  4. Trouble In Marineland - Trouble Shooting
    By Ed Blown Vert in forum Stereo and Electronics
    Replies: 0
    Last Post: 01-05-2008, 03:30 AM
  5. 94 firebird transmission shifting trouble
    By cnr2b1 in forum Automatic Transmission
    Replies: 2
    Last Post: 08-13-2006, 04:38 PM

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
  •