DOES MY 2001 CHRYSLER VOYAGER 3.3L V6 FLEX FUEL HAVE A INJECTOR RAIL? We have had a lot of gas smell when idleing. the shop says the injector rail is leaking. I have looked online at Autozone and Oreilly's and they say their is not an injector rail replacement part.

Sounds like a leaking fuel injector. Could be facing a under the hood fire in near future if not fixed. Not safe to drive until fixed. Have it towed or hire a mobile mechanic. Don't drive it. Don't start it, unless you know what you're doing.

check for fuel leak in fuel lines, injectors, injector rails, fuel line to tank at the tank. seriously! you could have a fire soon.

Pumping gas will not help. My guess is you have no fuel rail pressure due to bad fuel pump. Find shrader valve on fuel rail and test it for pressure.

Did did you change the o-ring at the fuel line to fuel rail connector? Do that before you change the fuel rail. According to an e-bay seller who is selling a used fuel rail from his salvage shop, the following fuel rails are interchangeable.
300 05-10 Fuel Injector; 2.7L and 3.5L
AVENGER 08-10 Fuel Injector; 2.7L
AVENGER 08-10 Fuel Injector; 3.5L
CARAVAN 08-10 Fuel Injector; 4.0L
CHALLENGER 09-10 Fuel Injector; 3.5L
CHARGER 06-10 Fuel Injector; 2.7L and 3.5L
JOURNEY 09-10 Fuel Injector; 2.7L
JOURNEY 09-10 Fuel Injector; 3.5L
MAGNUM 05-08 Fuel Injector; 2.7L and 3.5L
NITRO 07-11 Fuel Injector; 4.0L
PACIFICA 05-06 Fuel Injector; 3.5L
PACIFICA 07-08 Fuel Injector; 4.0L
SEBRING 04 Fuel Injector; Conv, 2.7L, from 07/30/03
SEBRING 04 Fuel Injector; Sdn, 2.7L, from 07/30/03
SEBRING 05 Fuel Injector; Conv, 2.7L
SEBRING 05 Fuel Injector; Sdn, 2.7L
SEBRING 06 Fuel Injector; (Conv, Sdn), 2.7L
SEBRING 07 Fuel Injector; (Sdn), 2.7L
SEBRING 07 Fuel Injector; (Sdn), 3.5L
SEBRING 08-10 Fuel Injector; (Conv, Sdn), 2.7L
SEBRING 08-10 Fuel Injector; (Conv, Sdn), 3.5L
STRATUS 04 Fuel Injector; Sdn, 2.7L, from 07/30/03
STRATUS 05 Fuel Injector; Sdn, 2.7L
STRATUS 06 Fuel Injector; (Sdn), 2.7L
TOWN & COUNTRY 08-10 Fuel Injector; 4.0L

check for fuel leak or evap system leak? any check engine light??

Don't run engine. Loss of power can be from washed out cylinders from gas bath. Friction also increases and engine will seize.

Check fuel pressure at fuel rail for excess pressure. Dirty injectors can fail to close. They put a pressure gauge on system and then check for a bleed down.

You can borrow some tools from big autoparts chains.

Drain oil and change filter. Temperature controls on engine can fail and keep engine too rich.

look at the fuel lines and injectors for signs of leakage.

It very much sounds like your fuel pump is getting weak or the fuel pressure regulator is going bad.

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/sean_54c3a3dc48a7773c

Take the bolts out of the fuel rail and lift the fuel rail off the injectors then remove injectors

your engine needs flushed .what is going on is idle has less pressure than driving and the sump is picking up dirt and debris but when you turn off or idle the debris falls off the sump.