Just a short video of my engine partially taken apart.
I had to change the intake gasket.
This was actually my first time tackling a job like this and it was actually really easy.
So if you have a 3800 engine and need the lower gasket replaced do it yourself and don't pay the dealer. I was a total noob at it and pulled it off just fine =)
While it was apart I went ahead and installed an Intercooler.
I figure since its already apart an Intercooler would be easy to put in at this point =)
3800 Series 2 Supercharged Modular Pulley System MPS Demo
Just a quick moduler pulley system "MPS" Demo.
The biggest bang for the buck mod for any Supercharged car is dropping
pulley sizes. Thats pretty much the first thing Supercharged car owners are
looking to buy when they get their cars.
As always scanning is the most important thing and I appologize for the
movie quality. I filmed this video on low res when I made it and Movie
Maker and Youtube degraded it more.
.1 drop in size = 1 extra pound of Boost
All 3800 Vendors offer excellent systems with lots of sizes
and as mentioned my system is made by "American Supercharger" on Ebay
How To Replace The Head Gasket and Intake Manifold Gaskets On A GM 3800 Engine
In this walkthrough I replace the head gaskets, upper intake manifold (UIM)
gaskets, and lower intake manifold (LIM) gaskets on a 1997 pontiac
bonneville. These steps will be identical for almost any GM 3800 / 3400 /
3100 series II motor.
If you have any questions feel free to post them on the video and I'll do
my best to try to help!
Here is a link to the the text walkthrough I used as a guide for making
Also here's a list of torque specs for most of the motor:
Camshaft Bolt: 74 ft/lbs + 90 degrees angle torque
Camshaft thrust plate: 132 in/lbs (T30 torx)
Front cover bolts: 15 ft/lbs + 40 degrees angle torque
Oil pan bolts: 125 in/lbs
Crank sensor nuts: 18 ft/lbs
Camshaft sensor bolts 48 in/lbs
Lifter hold-downs: 22 ft/lbs
Rocker bolts: 11 ft/lbs(132in/lbs) + 90 degrees angle torque
Lower intake bolts: 132 in/lbs
Supercharger bolts: 17ft/lbs
Crank Bolt: 111 ft/lbs + 76 degrees angle torque up to 10/98
111 ft/lbs +114 degrees angle torque 10/98 and up
Cylinder head bolts: 37 ft/lbs + 130 degrees + 30 degrees up to 10/98
37 ft/lbs + 120 degrees
Flywheel/flexplate bolts: 132 in/lbs + 50 degrees
Exhaust manifolds: stud/nuts 132
Nuts 156 in/lbs
Oil filter adapter to timing cover: 22 ft/lbs 97 earlier
132 in/lbs + 50 degrees 97 and later Oil pump
Cover to timing cover: 98 in/lbs
Pick up tube and screen: 132 in/lbs
Valve cover bolts: 89 in/lbs
Tstat bolts: 21 ft/lbs
Water Pump: 132 in/lbs + 80 degrees
Water pump pulley: 115 in/lbs
Throttle body: 84-89 in/lbs
Fuel rail nuts: 75-84 in/lbs
GM 3.8 Intake Manifold replacement. Removal the fast way WITH NOTES
this is the "Flat Rate " way to do a 3.8 liter upper and lower intake
manifold set. as you see it is not necessary to take off he serp belt,
alternator or tensioner assembly to remove the lower manifold. I recomend
having someone help when it is time to reinstall the manifold because it
can be tricky to lien up the coolant elbow and not mess up the lower
gaskets when reinstalling. Note that it is recomended to disconnect the
negative battery cable when doing any major repairs. This video is just to
show some guys that said that a lower manifold cant be pulled in way less
than 20 minutes, I know that I went over that , but I had some stuborn
injectors and Im a little out of practice. If you are going to do this
yourself and you are not a professional I recomend that you follow the
procedure in a service manual
1995 Buick Lesabre Intake Manifold Part 2: Intro
Click the above link to find the Intake Manifold for your vehicle. In this
video we'll diagnose and repair problems on a 1995 Buick LeSabre Intake
3800 Series 2 Modding Basics
Mods and Vendors list
Short Stack Intercooler
UD Water Pump Pulley
UD Alternator Pulley
Solid Motor Mounts
3 Inch Downpipe
Shortened Dog Bones
Rear Strut Tower Brace
Aeroforce Scan Gauge
3 gauge Pod
Throttle Body Heat Shield
Throttle Body Spacers
Ebay user "American Superchargers"
Modular Pulley System
All other parts not listed were purchased at various auto parts stores,Ebay
users I dont remember and Walmart.
Chevy 3.8 coolant leak
Yes, many of the 3.8 engines have leaking intake gaskets. But sometimes
it's not the intake gasket but the coolant bypass tubes instead. It's very
easy to overlook this. Here's what to look for and how to do it.
3800 Series 2 make your own fenderwell intake for less then $100
Build your own fenderwell intake for way less then $100
Support 3800 vendors. I dont work for any of these guys but without them a
lot of us wouldnt be able to mod. Our cars are not supported by the big
aftermarket companies so heres a quick plug for the 3 vendors left.
Fix It Right! - Intake Manifold Gasket Replacement
Fix It Right! - Intake Manifold Gasket Replacement (S1E4)
Demonstrated on a 2004 Buick Century 3.1L V6 FWD.
In this video, we demonstrate how to perform an intake manifold gasket
replacement on a front-wheel-drive 3.1L V6 engine, in this case in a 2004
Buick Century. This is a common point of failure on General Motors' 3.1L,
3.4L, and 3.8L V6 engines, which are used in a large number of passenger
cars across most of GM's model lines.
*** DIY POSSIBLE, BUT TOUGH ***
This repair task should only be attempted by advanced DIYers.
IMPORTANT NOTE: Please read the disclaimer text at the start of the video
before attempting anything shown therein. Take your time, take care, and be
About the "Fix It Right!" video series:
"Fix It Right!" is a series of how-to videos intended to give
do-it-yourselfers basic instructions on proper vehicle repair and
maintenance. All of our videos show real repairs being performed on real
vehicles by real technicians in a real auto shop. (Repairs are filmed and
shown with the permission of the vehicles' owners.) Although there may be
more than one way to perform any particular repair (and in many cases there
are lots of ways!) we try to focus on the methods that will be safest and
most expedient for DIYers with limited access to tooling and equipment.
We will also occasionally be showing repair processes that are too complex
or dangerous for DIY, or require specialized tooling, expertise, equipment,
and/or certifications. Those episodes will highlight the importance of
hiring a professional auto technician for tasks that are not DIY-friendly,
and demonstrate why such tasks are best left to professionals.
Please click "like" on this video, as it encourages us to make more! If you
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HOW TO CHANGE THE SUPERCHARGER OIL ON A GM 3800 SERIES II V6
just a quick instructional video of how to properly change the Supercharger oil on your 3800... some people say
just to re-top off your Supercharger,
but many owners as well as a good number of master mechanics ive talked to
about it that worked on these cars, they say to full out replace it by
draining it and putting new oil in, simply because if you know anything
about oil youd know that it breaks down over time especially because of
heat and friction. new oil handles it better and keeps it properly
lubricated and cooler temperature. old oil will be dirty, maybe burned,
and possibly ineffective if broken down enough over time. which method you
trust is up to you, im not saying either method is right or wrong, this one
just makes more sense to me, therefore thats the one i do on my car so we
made the instructional video for this, if you choose simply to top off your
oil, do all the same steps just dont empty the old oil first.
3800 Lower Intake fix
Just some nuggets of wisdom for fixing a leaking lower intake gasket on a
GM 3.8L Series 2 V6.
Grand Prix GTP Tear Down Explained/Port and Polish
My Grand Prix GTP torn down and Im going to show you how easy it is to pick
up to HP and more TQ! Cut your ET! Fully explained video and function of
our 3.8L's and how to make more POWER! From the throttle body down to the
Intake manifold, the entire intake explained!
Pontiac Bonneville 3800 Tune Port Injection Series I (Plastic intake leak solution).
In this video we explain how and why the plastic plenum on a engine will
leak. this video discuss the intake plenum on a 3800 3.8L engine from
Replacing the plastic plenum (intake) manifold (Buick 3.8) with a metal
(OEM) one from GM. The metal plenum can be found on most Oldsmobile with
the 3800 TPI engine.The plastic intake plenum are more likely to leak air
or coolant into the induction system. Coolant leaking into the cylinder
will cause the engine to Hydro lock (damage). when the plastic intake leak
air. it will cause a Lean condition. A leaky intake manifold will also
affect the O2 (oxygen) sensor performance by contaminating the sensor. An
intake leak will display many codes. replacing the sensor recommend by the
scan tool will not fix the condition if the plenum continue to leaks.
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