I have an 2001 impala v 6 and I cannot find the orface valve

2008 Impala 3.9 engine firing order

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Jul 10, 2015 - Need help finding the firing order for a 2008 impala 3.9 engine. Most sites/autozone have all the firing orders except for the 3.9 of course ...
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Yours has a

thermal expansion valve (TXV). no orifice tube . look at fire wall where the a/c pipes go in look for this part .



The thermal expansion valve is located in the liquid line between the condenser and the evaporator. The thermal expansion valve is the dividing point for the high and the low pressure sides of the A/C system. As the refrigerant passes through the thermal expansion valve, the pressure of the refrigerant is lowered. Due to the pressure differential of the liquid refrigerant, the refrigerant will begin to vaporize at the thermal expansion valve. The thermal expansion valve also meters the amount of liquid refrigerant that can flow into the evaporator.

check for vacumm leak check your your fuel cap sonetimes the gasket on the gas cap gets worn out

Run a can of really good fuel system cleaner thru it,and make SURE your oil is a good quality and doesn't need changing. don-ohio

For the 2001 Chevrolet Impala
I do not know if you have the 3.4L or 3.8L however I have included both below:

For the 3.4L V6:
Firing Order:
1-2-3-4-5-6
Ignition Connections:
............(back)...........
.'.5..2.'..'.3..6.'..'.4..1.'
............(front)

For the 3.8L V6:
Firing Order:
1-6-5-4-3-2
Cylinders:
.....(back).....
'...2...4...6...'
___________
'...1...3...5...'
.....(front)

Ignition Coil Connections:
(back)
o 6
o ---3
o 2
o ---5
o 4
o ---1
(front)