GM 3.8 ( 3800 ) v6 engine systems.
3800 v6 engine in pontiac, chevy, oldsmobile, buick. Operation and description.
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Description of Other GM Engines, Systems, and Operations
12-10-10
where is camshaft position sensor.
Comments
The camshaft position sensor on the 3800 V6 is located
on the front timing cover. Behind the water pump pulley.
If looking straight at the water pump, it is a little to the left.
3-27-10
location of speed sensor
4-1-11
where is the oil pressure sensor?
That depends on which speed sensor you are referring
to. The vehicle speed sensor is located on the output of
the trans. ABS speed sensors are located at every wheel.
On the 3800 engine, it is located behind the power
steering pump, on the engine block.
4-6-11
color of the 2 wires connected to IAT sensor on grand pix 2006 V6
4-17-11
if the gasket under the PCV valve cover is leaking is the engine shot
Not sure why you are asking this. If the small gasket
under the PCV cover is bad- which is not a gasket, it is
an O ring-  then the seal is JUST bad, and is causing
whatever problem your engine is having. It is not the sign
of a bad engine.
4-26-11
were is the fuel vapor hose tube located on a 1999 Grand prix ct 3800 6 cyl.
4-18-11
Where is the Oxygen Sensor?  Bank 1 sensor 2 to be exact.
4-30-11
That sensor is the one behind the catalytic converter.
6-19-11
Where is the crank position sensor located?
The crankshaft position sensor (CKP) is located behind
the crank pulley on the front of the engine.
6-22-11
I need vacuum line info on 3800 6 cyl supercharged engine.
6-25-11
3.8 2002 Buick Spark plugs black now likes you start runs for a second then
dies as good feel pressure.
6-27-11
Check for a leaking fuel pressure regulator. That would cause it to stall and run
rich, which would turn the plugs black from fuel.

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8-15-11
It is easy to replace Camshaft Position sensor? As mention above it's behind the
water pump pulley. Thanks Sam
11-14-11
can you substitute water for antifreeze in a 3800 V6
If the system is all water, it will freeze. On the other hand,
when hot it will boil over easier. Coolant prevents
freezing as well as raising the boiling point of water.
11-25-11
Is there a sensor on or for my power steering pump or I dont have one.
11-27-11
Most 3800 engines do not have a sensor on the pump. If it did, it would be
visible from under the car.
1-17-12
There is no EGR on my 3800 or a place for one ever heard of that
Yes. What make, model and year vehicle?
1-21-12
On a 3800 V6, Series II, VIN K, does the DIS alternate polarity of the coil when
firing each set of companion cylinders? Thanks.
Not really alternating polarity. The module powers one
side of the coil, while the other side becomes the ground.
Then when the other tower needs to fire, it is switched.
1-23-12
What would be a resistance range for the temperature sensor? I have a reading
of 352 ohms and my gauge always stay at the lowest point.
1-26-12
Coolant does little for boil-over protection, only increases by 8* with a 15#
radiator cap. Water actually conducts heat better than a mixture; about 20% of
the cooling system capacity is due to the decrease in heat transfer.
However; antifreeze has many additives in it which keep the water pump lubed
and reduce corrosion. Antifreeze is also needed in summer believe it or not...
You can freeze a heater coil on some cars with the AC
1-30-12
I have a 2003 Pontiac Grand Prix with the same problem. It is the ECM. I have
not change it yet. To by pass it DO NOT USE THE REMOTE KEY AT ALL, AND
DO NOT USE THE ELECTRIC LOCK BUTTON TO LOCK OR UNLOCK THE
DOORS. USE ONLY THE KEY TO OPEN THE DOOR AND THE TRUNK.
MANUALLY LOCK AND UNLOCK EACH DOOR BY THE MANUAL BUTTON ON
THE DOOR. Been driving for 6 months now no problem. The ECM is also VIN
SPECIFIC, about 450.00. Dealer is the only one to install because they have to
be calibrated when installed. When you use the remote or the electric lock
button it send a message to the ECM. Because it is gone bad it acts as if
someone has stolen the car and shuts it off after a couple seconds of running.
That is why you can't use the remote or electric locks.