Engine stalls when warm

Before you spend money on an assumption have the fault codes read and know what is wrong first. Otherwise it may be this then sorry that then sorry might be this ETC The cost would be about parts plus 1 hour local labour cost

do you have a check engine light on?? If so, have the vehicle scanned at autozone for the error code. If it isn't on, this may be caused by faulty crankshaft or camshaft position sensor. Cam sensor controls firing and crank sensor controls fuel. This issue needs to be physically diagnosed!!

You must be talking about the 3.1. Very common problem. If you are NOT mechanically inclined, Don't attempt. There are 2 styles of gasket sets. Won't know which 1 you need until you take apart. The standard set costs about 56.00. The upgraded version is 86.00. Also change the thermostat,antifreeze and oil and filter. Dealer will charge about 5 to 600 . Backyard Joe, about 350-400

MAGNA 1996 TE you have to pull down all covers of front of motor remove rh wheel and inner plastic protecters to access crank wheel remove crank wheel. rh engine mount and two outer belts lower/lift engine to remove timing belt pulleys ect.remove timing belt to access waterpump lots of labour can email photos if any one needs an idea .of whats involved when replacing water pump. best get a timing belt kit and replace belt ,pulleys as well. then good for 100.0000 kms and plugs as well platium ones by doing on your own can save 800 to 1000 dollars just be carful not to move pulleys on timing belt . good luck i posted this after i had no response .a desiel mechanic guided me though the ordeal a lot of labour for a waterpump it took me 8 hrs straight to do . hope this is useful i didnt need timing kit just belt total cost if you do job $350.00 i got quoted $1500 by mechanic
$25 COOLANT
$300 TIMING BELT KIT OR $100 FOR BELT ALONE
$95( WATER PUMP NON GEN SUPERCHEAP AUTO)( GENUINE MITS $300 TOO MUCH$$$)
$90 PLUGS PLATIUM
$30 OIL
$7 OIL FILTER
$10 GASKET GLUE