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Thread: Penglii's 1989 TGP

  1. #1

    Penglii's 1989 TGP

    Here is the scoop on the 89 TGP I just bought from my friend in Fort Atkinson, Wisconsin.

    1G5WP14V1KF320176... Birthday of 5/23/1989!

    Red with Tan Leather. No sunroof and no CD.

    All in all she's in great shape.

  2. #2
    Engine was rebuilt less than 500 miles ago. Everything else is pretty much stock.
    Seats are in great shape... just some damage on that bolster that always wears out... otherwise the leather is clean and solid.

    The gauges are inaccurate in all the typical ways. The Tach seems slightly off; the Speedo reads high but not by a consistent amount. Boost gauge seems fine.
    The low fuel light seems to go on and off at random. The fuel needle itself seems to be ok though.

    The oil pressure gauge is at 0 when the car is off, pegged during throttle and some idle, jumps randomly during some braking and some idle. I'm thinking the sensor needs replacing.

    ABS light is blinking, PMIII whirrs everytime brakes are applied and intermittently during sustained pedal pressure (bad accumulator?). Other than that the brakes are great.

    The HUD is functional, but shows no data... it will just light up all the LEDs and stay that way. I wonder what's up with that... maybe something's just unplugged? DIC seems to work. I have not calibrated the compass yet.

    There have been a few minor voltage drop conditions, but I think I just need to diligently find and clean all the ground points. I'm sure that will be great fun. Not dire though.

    Transmission has a sort of nasty clunk going on into Reverse... Otherwise it functions appropriately (knock on wood). Clearly it's going to need help though.

    Tires are too big... 60 instead of 50... so there is annoying and noisy rubbing in the front wheelwells that looks like it exacerbated some damage to the bumper where it meets the wheelwell. I think the damage has stabilized... but I need to get correctly sized tires on ASAP nevertheless.

    I have not had a chance to really dig into her yet. The drive home from Fort Atkinson was a lot of fun, and so has driving around town to work and back.
    Last edited by Penglii; 05-10-2010 at 11:21 PM.

  3. #3
    Community Manager White93z34's Avatar

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    you'll defiantly need a new brake accumulator.
    -Chris D. - Your Community Manager

    "Insanity has no brand loyalty" - Got2b GM
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  5. #5
    Quote Originally Posted by White93z34 View Post
    you'll defiantly need a new brake accumulator.
    Where can I get one of those?

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    tornado_735's Avatar

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    Quote Originally Posted by Penglii View Post
    Where can I get one of those?
    Someone had a spare one floating around for sale...I can't recall who it was though.
    ~Aaron - "Jack of all trades, Master of none."
    1992 Chevrolet Lumina Euro 3.4 - 209k "Rockstar"
    1994 Pontiac Grand Prix SE Coupe - 214k - Rescue/DD

    Quote Originally Posted by GOT2B GM
    I can lodge a formal complaint.....or I can leave his truck on blocks and call it a day.....

  7. #7
    Community Manager White93z34's Avatar

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    http://www.amazon.com/ACDelco-18M874...3553326&sr=8-3

    also there is some more information about in the parts number thread in general
    -Chris D. - Your Community Manager

    "Insanity has no brand loyalty" - Got2b GM
    1992 Chevrolet Lumina Z34 3.4L TDC v6 Getrag 284
    1990 Pontiac Turbo Grand Prix 3.1L v6 Hydramatic 4T60
    1997 Pontiac Bonneville SSE Supercharged 3.8L v6, Hydramatic 4T60E
    1987 Chevrolet Camaro Z28/IROC-Z 5.0L v8, Hydramatic 700R4

  8. #8
    Forum Moderator GOT2B GM's Avatar
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    I need to buy one of those for my TGP as well......
    Matt Shantz


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    Addicted to eaton's Avatar

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    Looks like a nice car that needs some TLC. How much you pick it up for? If you dont mind?
    2006 Kia rio, 114k miles
    2002 Grand Prix GTP. 40th Anv edition, 3.8L Supercharged V6, 130$ BBQ special. 111,000k
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    1997 Chevy Silverado 350 5.7L vortec z71, 250k
    1997 Grand Prix GTP, 3.8L supercharged V6 -Knocking motor mod. 189,000k
    1995 BMW 325I Slow, old, and high tech.

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    Forum Moderator mfewtrail's Avatar

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    Congrats on the new TGP. Looks like it's in pretty nice shape. Did the previous owner swap those 1990 headlights on there? The original 89's have the black liner around them like your corners do.
    matt f. - '93 SE, '90 Black/tan TGP(#101 of 2,749), & '90 Red/tan TGP

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    TGP 1/4 mile times
    1990 TGP coupe VIN database

  12. #12
    Quote Originally Posted by Addicted to eaton View Post
    Looks like a nice car that needs some TLC. How much you pick it up for? If you dont mind?
    Yes, all in all it's a beauty that will clean up real nice. I got it for $3000 cash.

    Quote Originally Posted by mfewtrail View Post
    Congrats on the new TGP. Looks like it's in pretty nice shape. Did the previous owner swap those 1990 headlights on there? The original 89's have the black liner around them like your corners do.
    Yeah I assume the previous owner did that. There are traces of old black liner on the headlights... but it does not seem nearly as thick as the 89 liner would have been. I'll have to re-apply her mascara at some point.

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    Twenty's Avatar

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    Congrats! She's a beaut!
    "It's not the age that matters, it's the condition"

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    94GPGTP's Avatar

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    Awesome!! Valance!!!! FTMFW!!!!! I see the passenger side door molding has been replaced since it has a different shade of red.. I have a extra red emblem i can spare to sell if you want to replace your missing one.. Also IMO ditch the spolier.. Get another red spoilerless trunk lid and put it on.. TGP's just have there own look being spoilerless, no miniquads, and valance's...
    1996 Pontiac Grand Prix SE 3100/4T60-E (Black) Totalled
    1995 Pontiac Grand Prix GTP 3.4 DOHC/4T60-E (White) Lowered 2", Hi-Po 5 Spokes
    1990 Pontiac Turbo Grand Prix 3.1/282 (Black) 5 Speed, Lowered 2", Poly Front End, and Many other Mods
    1996 Pontiac Grand Prix SE 3100/4T60-E (Red) "Field Car" Currently Being Built

    What can i say... I love Grand Prix's...

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