6
questions

both catalyst and evaporative monitors are not setting.
vehicle has been driven several hundred miles, and has not
had the battery die during a recent time. vehicle also has
no check engine light or pending codes. was unable to find any information on if this is a common problem with this make/model vehicle.

every time it down shifts... when coming to a stop or rounding a corner.

show picture of spark plugs

hello how are ya guys i just went to the repair shop to check on my ac they take a look at it could not find anything when i drive when i turn on my AC it works fine 30 to 40 min then it stops when i leave the car off for like and 30 min to 1 hour when i turn on the AC it starts working again first i was thinking it has some whole but repair shop could not find anything so what could be the problem that causing this kind of problem

Typiccaly how many hours to changeout a used transmission on the abov van. Trying to judge cost factor. Have the tranny, need to know how long to put in.