when should the timing chain in a T & C 2002 3.3L be done? or checked if possible.

 

The timing chain is meant to last for the life of the engine, so there is no maintenance interval.

 

This is a misconception that the chains last forever. They do stretch and the tensioner does wear. With too much stretch the cam sensor notices it, flags up a fault code and sometimes shuts engine down. The tensioner bears on the chain so it wears. Some car like the Nissan Micra used a chain thinking it would last longer but. So all cars with chains have a change time so V6 will be the same. But there maybe no record if it has ever been done unless in servicing paperwork. So the only thing you can do without servicing records is check the chain tensioner for excessive wear. If it is badly worn also check the drive cogs/sprockets. Last one I read about had a chain replacement of around 100,000 miles which could refer to quite a few years.

 

Everything you said is valid for many engines, but not for 3.3L (and 3.8L) Chrysler engines. They do not have a tensioner, and there is no set "change time". According to the service manual the chain should be replaced if the chain develops more than 1/8" of slack. A member on another forum had to replace his timing chain cover gasket at 300,000 miles and the chain was still within specifications, and my timing chain has not been touched at 246,000 miles.

I have yet to hear of a timing chain failure on one of these engines.

 

I Second that only real need is if u hear the slack

 

Just for my record then, can you's tell me what Voyager V6 has a Chain Tensioner, not sure if its hydraulic or spring, Tensioner Arm and Chain Guide. The arm and guide is the slipper type. Guide is white plastic and arm black plastic...Just so I can score this off as being not 3.3 & 3.8 V6 Voyager engines.

 

The only V6's that were used in the Chrysler minivans in the U.S. are:
3.0L - Timing Belt (Mitsubishi) (1987-2000)
3.3L - Timing Chain (1990-2010)
3.8L - Timing Chain (1994-2010)
4.0L - Timing Belt (2008-2010)
3.6L - Timing Chain (2011 and up)

Of the three that have timing chains, only the relatively new 3.6L has multiple chains, tensioners, and guides.

For pictures of the 3.3/3.8L timing chain see the following:
Radiator Fluid Leak 3.8 Liter.
Leaking Front Crankshaft Seal

 

Reminicent of Rover V8 with Camshaft between banks and pushrod operated valves...

 

I'm having a wobbly here at this is a push rod engine going back too 1991and its still being used. I was under the impression this engine had overhead cams with a long chain etc...A quad cam one even came up. So the timing chain and wheels is reminicent of our old A series Leyland engines with no tensioner and has three different cam drives that have to be noted for ordering. Seems to be alott of noise complains about the engine so hard to tell whats going wrong...Cam chain is strong looking with multiple links so I can see how it lasts longer. But in the whole a simple engine.