2002 Mercury Villager - Crankshaft Sensor

Princeton Auto · Post by **Princeton Auto** » Thu Apr 28, 2011 1:26 pm

This vehicle is the same as a Nissan Quest. 3.3L motor. The CKP is triggered off of the flywheel/flexplate (auto trans).

My question is this-- What on the flywheel is used to identify TDC #1 for the sensor? As we all know, usually there is a wider gap between triggers or a larger trigger tooth. This vehicle does not seem to have anything that identifies TDC for the CKP.

Am I missing something here?

Tim Martin · Post by **Tim Martin** » Thu Apr 28, 2011 2:11 pm

As I recall, this one uses the starter ring gear teeth to trigger the sensor. I am not sure how it identifies #1 though. Not had a reason to discover that yet.

ricmorin · Post by **ricmorin** » Fri Apr 29, 2011 6:54 am

The camshaft sensor identifies TDC.

brianp87 · Post by **brianp87** » Fri Apr 29, 2011 6:56 am

ricmorin wrote:The camshaft sensor identifies TDC.

Bingo

ricmorin · Post by **ricmorin** » Fri Apr 29, 2011 7:02 am

As a matter of fact, the cam sensor does most everything drivability-wise. The crank on these only does diagnostics. (crank speed variations to determine misfires, etc.)

steven kiser · Post by **steven kiser** » Sat Apr 30, 2011 2:53 am

besides that doesn't the crank sensor supply information during start up only, and after a few seconds pretty much is a tach sensor only.

2002 Mercury Villager - Crankshaft Sensor

2002 Mercury Villager - Crankshaft Sensor

Re: '02 Mecury Villager Crankshaft Sensor

Re: 2002 Mecury Villager - Crankshaft Sensor

Re: 2002 Mecury Villager - Crankshaft Sensor

Re: 2002 Mecury Villager - Crankshaft Sensor

Re: 2002 Mecury Villager - Crankshaft Sensor