Chrysler Repair: 3.3 liter Fuel Rail, chrysler newyorker, feeder line

Question
Hi Roland I have a 1990 chrysler newyorker fifth ave. with a 3.3 liter, automatic.  I started my car the other day and smelled fuel.  Popped the hood to find that the fuel rail was leaking on the front bank where it comes together with the feed line.  The feeder line slips into the main rail on the front bank.  can you replace the seal or just the front rail or do you have change out everything.  Also the transmission tries to go into over drive and bumps hard 2-3 times then puts itself back in 3rd until the next stop.  Changed the input and output sensors..no change.  

Answer
Hi Scott,
I recently looked into your fuel rail question regarding the 3.5 engine, going to the local Chrysler parts dept., and determined that the entire rail assembly is a unit, and it is not sold in parts. It includes the twists and turns at each end to meet the points where the fuel lines attach. So I suspect if the leak is not at the fuel clamp area then it may mean getting a new rail (listed at $172 for the 3.5). I wonder if there might not be a way to repair the break, you could ask a machinist. But you don't want to let this go on for fear of an engine compartment fire. But check with a dealer for the 3.3 and see what they say.
On the transmission, there is a symptom table in my '92 A-604 manual that lists the possibilities for no upshift to OD, and fortunately most of them sound like they don't require a rebuild except for "worn or broken reaction shaft support rings". The other possibilities are:
valve body malfunction or leakage
hydraulic pressures too low
hydraulic fluid filter clogged
low fluid level
All those are amenable to repair without rebuilding.
There are several ways to diagnose this: measure the hydraulic pressures, readout the fault codes in the trans controller using the Diagnostic Readout Box, or you could try the routine maintenance approach (drain the pan and look for the amount of debris thereon, ideally little or none; replace the filter, refill with Chrysler brand fluid; if the fluid hasn't been changed for a long time or smells burnt then do a flush of the balance of the fluid contained in the torque converter so you get a total change of fluid).
The diagnostic approach involves more labor time, the latter may be sufficient to correct the problem. The history of recent maintenance may suggest which way to go to solve this issue. But be sure to use only Chrysler fluid as these beasts are finicky about their fluid I am told.
Roland