Stalls til warm - 1999 Mercury Grand Marquis

nevr evr replace parts til u know the issue--its either the egr valve or the idle control motor----resistence in electric components from old age cause heat and stop car til they cool--such as injector drivers in the computer-----have a data stream run-it gives values and voltages topinpoint and area--code readers only give a general view

because water has to warm up until 90*

2000 Durango,No code thats okay we have the symptom that all we need. Stall when hot.So it stall at idle or if you decelerate then it also stalls.and it start right up. The 2000 Durango is equipt with a ISC (idle speed control motor) and this is mounted on the throttle body.This maintains a target idle speed.The ISC also uses a desired MAP for deceleration.Your solution is a throttle body cleaning,or a ISC (idle speed control) motor.This is the only thing that can cause what is described

Try plug wires, that's about all you haven't replaced. Actually if you have an ohm meter you can test them - anything over 6k ohms per foot - REPLACE them. Also run a good fuel system cleaner through it and stay away from cheap gas.

When it stalls, I would check to see if it's getting spark. Also, check the inside of the distributor for any oil leaking inside. You may have a pick up coil in the distributor or a bad control module.

What have you done so far to try to find the problem?
It could be a clogged fuel filter.

Have the choke setting on your carb checked. if its fuel injected model---have the air and temperature sensors checked out


Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/sean_54c3a3dc48a7773c

Replace the acceleration pump. It's a small diaphragm on the carburator, near the fuel line. Usually less than $10.

Change fuel filterS...plural
Don't forget the big canister unit under (next to wheel well)

Have your battery tested. When the battery has a problem the dodges will act this way.