Ford Powerstroke Diesel Forum banner
1 - 3 of 3 Posts

·
Premium Member
Joined
·
8,603 Posts
Use your monitor (preferably ForScan) to look at the temp sensors (engine and transmission) -- when cold, they need to be not more than a couple degrees apart
That code can be set when the cranking voltage drops too low -- need to check while cranking, you should not see below 10 volts

With the fan disconnected, do you still get the P0337 code?
 

·
Premium Member
Joined
·
8,603 Posts
Do a search on my recent posts and find the ForScan info -- that will get you a good tool for not much money
 

·
Premium Member
Joined
·
8,603 Posts
Maybe your search foo is weak ;) , but here is the info:

I suggest downloading ForScan and using the OBDLink MX+ or the BAFX adapter for troubleshooting
Torque Pro would be good for everyday use with an old phone or tablet -- can be mounted on the dash
Scan Gauge is small and simple -- can be mounted in front of the instrument cluster
there are other monitor solutions, but the price goes higher

ForScan is a simple download for PC, you can get it in just a few minutes -- the "lite" version is available on the app stores for your device.
There is a "demo" in the app options, so you can use the app without being connected, to get familiar with the screens
The BAFX adapter is the least expensive and a reliable adapter -- the MX+ is smaller, faster and more features

The PC version is the most powerful and does the "click test" and other tests
you do not need the license for troubleshooting

 
1 - 3 of 3 Posts
Top