firewall 1-----2-----3 4-----5-----6 front of Ford Freestar > driver
firewall 1-----2-----3 4-----5-----6 front of Ford Freestar > driver
On a 2004 Ford Freestar ( 3.9 and 4.2 liter V6 engines ) firewall 1-----2-----3 4-----5-----6 front of vehicle > driver
On a 2001 Ford Taurus : firewall 1-----2-----3 4-----5-----6 front of vehicle > driver
firewall 4 - 8 3 - 7 2 - 6 1 - 5 front of Ford Expedition
On a 2005 Ford Freestar ( 3.9 and 4.2 liter V6 engines ) firewall 1-----2-----3 4-----5-----6 front of vehicle > driver
On a 2004 Ford Freestar , 3.9 ( and 4.2 ) liter V6 engine : firewall 1-----2-----3 4-----5-----6 front of vehicle > driver
On a 2006 Ford Freestar ( 3.9 and 4.2 liter V6 engines ) firewall 1-----2-----3 4-----5-----6 front of vehicle > driver
If you look at the cover on the brake fluid reservoir, it should read DOT 3
firewall 1-----2-----3 4-----5-----6 front of Ford Freestar > driver
If you remove the windshield wipers and the plastic cowl you can easily get to the back 3
On a 2004 Ford Freestar : 1-----2-----3 ( bank 1 ) 4-----5-----6 ( bank 2 ) front of vehicle > driver Bank 2 , sensor 1 would be close to the engine BEFORE the exhaust enters the catalytic converter