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post #1 of 16 (permalink) Old 03-11-2017, 01:27 PM Thread Starter
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Engine Questions

Hey Everyone,

As you can obviously tell I am new to the G8Board, but I am looking to buy my uncle's G8 which is the 2009 V6 3.6L and has roughly 60k miles on it (so not a GT). He rode his Pontiac G8 pretty hard and blew out the engine, but since he wanted to become an UBER driver he has to sell his Pontiac G8 (reluctantly). Anyways, I am looking to buy it from him, but the mechanic he took it to said I would need to put in a new engine and I guess my question is... Is it worth it? and if it is... How should I go about replacing it and how much would it cost? Does anyone have experience with this? I really want this car, because from my research it appears like it would definitely be an awesome car, but I also know it would be financially irresponsible for me to buy it if I'm not quite "there" budget wise.

Thanks,
Josh

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Last edited by Lightning02; 03-11-2017 at 02:44 PM.
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post #2 of 16 (permalink) Old 03-11-2017, 03:50 PM
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If it needs a new engine, who knows what else it needs. Run away from it fast. Plenty of well taken care of G8 V6's and G8 GT's around. I wouldn't get a G8 that right off the bat needs a new engine. Unless he is giving the car to you for free but even then, I don't think its worth it.

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post #3 of 16 (permalink) Old 03-11-2017, 04:22 PM Thread Starter
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He is giving me the car for free. Thanks for responding and it is definitely scary to think of all the problems that could happen or that I just don't know about. This is my biggest reservation when it comes to buying this car.
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post #4 of 16 (permalink) Old 03-11-2017, 05:02 PM
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There's a thread in the forum section where a member has swapped out his V6 because of a bent valve.
You may want to PM him for details.
Good luck hope that G8 lives to see the road again.
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post #5 of 16 (permalink) Old 03-11-2017, 05:29 PM Thread Starter
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I'll send him a message. Thank you.
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post #6 of 16 (permalink) Old 03-11-2017, 08:32 PM
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Hi and welcome! I say turn that v6 into a v8. Drop an LS7 in that bitch lol

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post #7 of 16 (permalink) Old 03-11-2017, 09:31 PM Thread Starter
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I don't think you read that budget part :P

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post #8 of 16 (permalink) Old 03-11-2017, 09:35 PM
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Damn. All well

PBM GT W/SPORT PACK
GO:
Pat G tune
CIA: ORSSOM
EXHAUST: BADLANDZ CUT OUTS W/ X PIPE AND RESONATOR DELETE
KOOKS 1 7/8 mids and HFC's (coated)

SHOW:
PONTIAC EMBLEMS REMOVED. HOLDEN TRUNK LOGO ADDED.
TINT
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post #9 of 16 (permalink) Old 03-12-2017, 08:38 AM
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I respectfully disagree that it's not worth it especially given that he got the car for free.

Low mileage used engines can be found on Ebay for as low as $700. Mine was $1025 and that included shipping to my front door.

Pulling the engines are really easy....remove radiator, tranny cooler and fans, disconnect engine harness from fuse box, ecm, O2 sensors and tranny, remove all 6 exhaust manifold bolts from catalytic converter, remove bolts that connect tranny to engine, remove starter, unbolt A/C compressor from engine, remove the two nuts on the engine mounts. Now pull the engine and install in reverse.

Approx an addl $200 for spark plugs, engine oil, antifreeze, power steering fluid, plenum gaskets, 2 copper crush washers for the power steering pump hose and the 2 gaskets that goes between the exhaust manifold and catalytic converter.

If you lose any tranny fluid while the hoses are disconnected from the tranny cooler it will cost you about $150 for the dealer to do a drain and fill to top you off. Unfortunately it's not easy for us to top off our own tranny fluids do to the fluid must be at an exact temperature while the engine is running while it's being filled......oh and we don't have a dipstick

So I would jump on the chance to own a low mileage V6 for less than $1500 (if you do the work yourself).
$3000 ($1500 engine+supplies+$1500 labor) if a shop does it.
$2100 ($1500 engine+supplies+$600 labor) if a good shadetree alley mechanic does it.

Please please change the rear diff fluid. Nobody seems to do it. It's easier and quicker than changing oil.

A used running/well taken care of V6 with comparable mileage may run you $5000 - $7000.

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Last edited by mrathell; 03-12-2017 at 10:22 AM.
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post #10 of 16 (permalink) Old 03-12-2017, 09:03 AM
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Given the car for free and if you do the work yourself, worth it.

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post #11 of 16 (permalink) Old 03-12-2017, 11:19 AM
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Quote:
Originally Posted by G8GTLVR View Post
Given the car for free and if you do the work yourself, worth it.
I'd agree with this. Free car and if you can do the work yourself, you'll have a reliable vehicle that looks good to boot. If your budget allowed for it, I'd say look into a used LS3 engine and trans combo and consider swapping out the v6 for the v8. If it doesn't, then pop another v6 in there and enjoy the car.

But definitely utilize the knowledge base of this forum. Plenty of members here who have performed nearly everything you can think of doing, so lots of good info on this site.

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post #12 of 16 (permalink) Old 03-12-2017, 01:19 PM Thread Starter
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As I do know enough about engines to diagnose a problem and keep the car running I don't really know how to swap an engine. I might be able to get my cousin to do it as they are a mechanic and I could probably pay him less than if I went somewhere to do it. Thank you all for your input and I will take all this into consideration before I make my final judgement. Thanks!!
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post #13 of 16 (permalink) Old 03-17-2017, 02:36 AM Thread Starter
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I just wanted to thank everyone again for their help with this.

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post #14 of 16 (permalink) Old 03-17-2017, 08:28 AM
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why exactly does it need a new engine? that's kind of vague.

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post #15 of 16 (permalink) Old 03-19-2017, 10:13 PM Thread Starter
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He never changed the oil and the engine just seized up.
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post #16 of 16 (permalink) Old 04-04-2017, 03:57 PM
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That will do it every time. Will add to keep any spare, salvageable parts from the engine swap for potential future use. Replacing an engine is not that big of a task assuming the rest of the vehicle is in good shape. However, since your uncle "never changed the oil" it begs the question of what else was neglected or abused on the vehicle? Either way, best of luck with your decision.

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