Hello, I have a 1992 Crown Vic X-Police Car. I recently replaced the engine with a rebuilt one becuse my sister siezed the engine when I let her borrow it! Now it runs good except for two minor things. Number one only on cool or cold days it will stall out. The past week when it was warm out it did not do it, any clues? Secondly the tranny has been giving me a what feels like it is slipping out of gear. Almost like it's loosing torque. There is no rime or reason to this. It can go a day or two without doing it. Then you can take it for a long trip and it won't do it then all of the sudden it happens. I have no idea what is going on. There is no pattern as afar as speed is concerned. It happens at low, high, and any speed you can imagine. It lasts for a few seconds or if you take your foot off the gas and then reaccelerate it seems to go away most of the time. Kris

i have the same issue too.

when did you changed the fluid and filter last time?

wow ur question was in 2006.... chances are if your transmission hasnt failed yet then chances are you drive that car anymore... i had a similar problem with 95 crown vic... the transmission is slipping but the teeth on ur transmission is still able to catch on to operate it... u need a new transmission... 550 for a rebuilt and 1200 for a brand new transmission

As far a stalling on cold days, check to see that the fuel tank vent hose is not collapsed on top of the tank, or that the fume canister is hooked up properly under the hood. Nobody replaces the hoses on top of the tank, and they turn back into dirt after 15 years. I get the same effect of stalling on my '59 Ford if I drive too long on a cold day with an EPA required unvented gas cap. The 59 has no tank vent, the cap is supposed to be vented, so if the gas is cold it pulls a vacuum on the tank and stalls the engine. I had to take one of these XXXX modern gas caps and drill two #35 holes into it for the car to run-the first hole went into the vent gadget and the car stalled again!
AOD trannies are going for $150 from junk yards around here, if you have more time than money try that route before you buy a rebuild. You may have to change junk twice. A new engine with good compression stresses the transmission more than an old worn engine. Look in the bottom of your transmission pan BEFORE you have the transmission flushed. If you have metal filings, or more than an ounce of organic trash (chewed up paper clutches), then it is time for a trans rebuild. Also, if your fluid smells burnt, is a good sign you need to exchange it.