I had a timing belt break on my 2006 chrysler pacifica 3.5L. After replacing the timing belt and water pump, the car runs like crap. It throws codes p0068 and p0113. It's hard to start and won't hold and idle. If u give it a little gas it will smooth out and run ok but once u let off it stalls. Also if u unplug vacuum lines it will idle higher and stay running. Is this a sign of bent valves or did I hook something up wrong? Timing is correct as I have checked it 3 times. Replaced some sensors as well.

 

The 3.5 IS an interference design motor..sounds to me like a bent valve. Time to have a compression test done to be sure all cylinders are good or which ones are low to know for sure.

 

X2 on the compression test, odds on bet broken belt = bent valves. Well documented issue over at the 300M club site.

 

I'm getting the compression tester tomorrow but would it still run with bent valves? There's no ticking sounds when running.

 

A side question, how many miles were on your Pacifica when the belt broke?

Curious, I have 98K on my 2005, trying to decide if/when to change it or have it changed.

 

Change it NOW!!!
The belt replacement interval is 100,000 miles, OR 7 years, whichever comes first.
You are way past due for a timing belt change.

 

My 05 is now at 112k, so well past due as well. To me why put $800 give or take into a $2000 car at this point. I'll take my chances and know a few that have lasted over 200k miles. If it goes, so does the car, disappointing but the rust will get it anyway.

 

Have 315,000 miles on mine, the 3.5 engine/trans still running strong. Change timing belt assembly every 110k, replace the whole kit and caboodle myself for less than $200 in parts each time.

 

That was what I paid for the parts to do the timing on my 3.5 liter Intrepid, and it is still running strong.
I sold it to a friend, and it got caught in a flood, but it still runs.

 

The timing belt on the 3.5L/4.0L engine is ridiculously easy to change so far as timing belts go. I did mine in at most 3-4 hours taking my time, and replaced the water pump, tensioners & idler pulley while I was in there for under $200.

I wouldn't be terribly concerned about age, but don't expect it to last 200k being that old. The original I pulled off my 2007 with 130k (I just did it this summer) looked great, had lots of life left in it. Either way, I'd still do it as soon as you can, I don't like to gamble with ruining an otherwise good engine.

Just because the belt might go to 200k, there's other components in there that can fail if not replaced and have the same end result-- if the idler pulley starts to go, it'll take the belt with it.