I have a 2001 Explorer (4.0L 6V SOHC 4WD) with an erratic oil pressure gauge, which causes the "Check Gage" light to come on and eventually go off. I've done a search in the forums and found that it might be the oil pressure sending unit. Where is the unit located in the Explorer? (I've done a search and found the location of the units for other model trucks and SUVs but not the 2001 Explorer.)

Thanks for your help.

 

Crawl under the vehicle and locate the oil filter. As a general rule, the senders are located in this area.
Dialtone

 

Thanks!

 

I once had a Thunderbird had a similar problem. The "Low Oil Pressure" alarm kept going off. I replaced the sending unit several times, then found out that Ford had a service bulltein that recommended an in-line resistor be connected to the sending unit--Ford part. This was a simple and inexpensive fix to an irritating condition. The sending unit required a special socket, available at Sears or Pep Boys, etc. No trouble replacing that, either.