Thread: Contemplating finding a shop for engine "refresh"

Results 1 to 5 of 5
  1. #1 Contemplating finding a shop for engine "refresh" 
    SE Level Member LouF's Avatar
    Join Date
    Oct 2011
    Location
    Ohio
    Posts
    74
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    I've had a random misfire for years and years (decade?), and I think I have to consider it's a head gasket. The car has 131,000 miles. I've tried to find the problem forever, but I never have. I haven't done a compression test. It has a small lifter tick, too. So, I'm thinking a "refresh" rebuild is what it needs. And tore down to the head gasket will bring up questions like timing belt and what not. So that's why I'm calling it "refresh" instead of a whole rebuild.

    I can't put in the time and risk to do it myself.

    Not only that, but the trans has been less than 100% for a while. Right now, Lucas has kept it useable. I wanted to get a rebuild from somewhere like a small performance rebuild shop like Triple Edge or Extreme Performance. Not an AAMCO type shop. If the price is much better for a rebuild, I'd have to go with that.

    I still really like my GP, but now it is hurting in two major categories.


    I'm throwing out the idea for suggestions. I'm in the Cleveland, Ohio area.
    Last edited by LouF; 2 Days Ago at 07:30 PM. Reason: More info
    Reply With Quote  
     

  2. #2 Re: Contemplating finding a shop for engine "refresh" 
    GrandPrix Junkie
    Join Date
    Oct 2009
    Location
    St. Louis
    Posts
    4,789
    Thanks (Received)
    18
    Likes (Received)
    76
    Dislikes (Received)
    0
    At 131K that engine is just barely getting broken in. Are you sure it's a lifter tick and not an exhaust leak? Even at that, the lifters in these cars are not known to be quiet. With that said, mine did apparently have a lifter tick that I thought was a cracked rear manifold but ran up to 414k before the lifter finally showed itself and gave up. Funny part was even with the lifter issue it ran smooth, just got a noticible knock to it.

    As far as the misfire, what have you replaced to try and resolve it? Is your car a GT or GTP?

    Head gaskets are rare on these engines but can happen. And they also have a timing chain, no belt. And I've yet to change a stock one on any of my 3800's. One is at 300K and the other lived in the 414K engine I just pulled and I wasn't always kind to it and had no issues. But if you plan on having it pulled down to a shortblock then I'd replace the set while in there.

    Would definetly go with TEP on the trans. Besides, they're only ~4 hours from you. You could pull it and drop it off/pickup in person and save a ton on shipping and get a road trip to boot. I only have 2 people that I would trust to build me a trans and Dave is one.
    Reply With Quote  
     

  3. #3 Re: Contemplating finding a shop for engine "refresh" 
    SE Level Member LouF's Avatar
    Join Date
    Oct 2011
    Location
    Ohio
    Posts
    74
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    Quote Originally Posted by FordMan77 View Post
    Are you sure it's a lifter tick and not an exhaust leak?
    I'm pretty sure. It's quiet after an oil change, but that only lasts about half a day.


    Quote Originally Posted by FordMan77 View Post
    As far as the misfire, what have you replaced to try and resolve it? Is your car a GT or GTP?
    '05 GTP (sorry, my signature didn't show.)
    I've done so much. Plugs at least twice, wires, vacuum line checking, confirming fresh gasoline, various coils, ignition control unit, evap. purge valve solenoid o-ring...
    Every time I've messed with the evap. purge valve solenoid o-ring, it's good, but it goes back to random misfire. It could be coincidence, but it sure was coincidental that it was good afterward.


    Quote Originally Posted by FordMan77 View Post
    And they also have a timing chain, no belt. And I've yet to change a stock one on any of my 3800's.
    My mistake. Yea, I've heard about the timing chain longevity too.


    Quote Originally Posted by FordMan77 View Post
    Head gaskets are rare on these engines but can happen.
    Heard that too. I don't see any signs of milky oil. I've never over heated it.


    Quote Originally Posted by FordMan77 View Post
    Would definetly go with TEP on the trans. Besides, they're only ~4 hours from you..
    Will keep it in mind!



    Yea, I'm sure I can't afford all of this. I was feeling optimistic yesterday.

    I'll have to try a compression check to be sure.

    Will reply back then. Thanks for your input.
    2005 Grand Prix GTP
    Reply With Quote  
     

  4. #4 Re: Contemplating finding a shop for engine "refresh" 
    GrandPrix Junkie
    Join Date
    Oct 2009
    Location
    St. Louis
    Posts
    4,789
    Thanks (Received)
    18
    Likes (Received)
    76
    Dislikes (Received)
    0
    Do the compression test and post the results. Is your GTP stock or did someone pulley down at some point? (install a smaller than stock diameter supercharger pulley). Being that the GenV supercharger on your car is more efficient than the 07-03 GTP's maybe someone installed some parts on it that it didn't really need or didn't have the supporting mods to compensate for it.
    Reply With Quote  
     

  5. #5 Re: Contemplating finding a shop for engine "refresh" 
    GT Level Member
    Join Date
    Apr 2014
    Location
    commerce twp,mi
    Posts
    292
    Thanks (Received)
    3
    Likes (Received)
    21
    Dislikes (Received)
    0
    seems pretty drastic for a misfire and no guarantee the misfire will disappear.

    a live scan while the engine is running to find out which cylinder is misfiring is a good thing.

    I found 5w oil causes a lifter tick. no tick with 10w.
    08 grand prix NA3800
    Reply With Quote  
     

Similar Threads

  1. Still getting "Check Security System" and got "Battery Saver Mode"
    By J57ltr in forum General Tech Discussion
    Replies: 3
    Last Post: 08-08-2015, 01:36 AM
  2. How to properly reset "shift learn" or "adapt" in 4t65e-HD
    By AndrewGXP in forum 1997-2007 4 speed Automatic (4T65E) (4T65E-HD)
    Replies: 4
    Last Post: 01-29-2015, 09:30 PM
  3. """"""""""3inch Cutout""""
    By PWNED in forum For Sale - Parts
    Replies: 4
    Last Post: 12-10-2013, 08:10 PM
  4. 2006 Grand Prix "Reduced Engine Power" and "Service Traction System" warnings
    By chadwick in forum General Grand Prix Discussion
    Replies: 31
    Last Post: 10-04-2013, 09:59 PM
  5. Replies: 2
    Last Post: 07-21-2012, 08:35 PM
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
  •