You are most likely low on coolant or if you have had a coolant change recently the problem is due to insufficient coolant within the system which is also results in having air trapped in the system. Check your coolant level in both the radiator and the overflow bottle. I also recommend that you follow the procedure for removing trapped air in the cooling system. It can be found as part of the coolant refill procedure, which can be found at http://home.earthlink.net/~vqfaq/.
i found out how to do it.
Under the hood above the transmission.
You can't fix it till you know what's wrong with it.
What is the fuel tank capacity of a 1997 Mercury Villager van?
on my 1999 ford mercury villager its on top of transmission under the van
There is no such device on a '97 villager.
This is not possible on a modern vehicle like the Villager.
1999-2002 Villager or Nissan Quest.
About 3900 lbs.
Under the dash.
It can be, but I would use a tow dolly to keep from building a custom tow bar attached to the van.
The 3.0 litre V6 engine in a 1998 Mercury Villager has a timing BELT