Truck shuts down when making a turn

[joesherrie12]

(03-15-2018 )zyNoT Wrote:  

(03-15-2018 )joesherrie12 Wrote:  The truck shuts down when I make a turn or on a hill taking off.But starts back up after I stop and cut key off and back on again.its like just cutting the key switch off. Sometimes when I first start the truck the uplift pump won’t come on but I can cut the key on/ off a couple of times and the pump will start working and it will start. ( new pump installed back in August) 09 Pete 387 isx

Possibly wiring or the board of the ECM is losing connection on turns. I've seen this before and it's usually wiring. If it's not wiring it's the circuit board in the ECM.

The lifter pump not coming on is strange. Do you see any fuel pressure during that time? Should be around 30psi+.

Check fuel rail pressure and make sure you aren't leaking any either by doing a leak down test.

When the truck shuts down are the lights on the dash still on? Or is it literally emulating a key off?

It acts just like if I cut the key off and then I can start it back up again! No lights nothing. A few weeks ago the check engine light came on with the truck abs light and the dpf lights flashed but would go back out that happened for about 3 days in a row and stopped had no problems since until last Thursday