my engine hood cover goes up and down on the highway 45mph up)what part is missing to hold it down.
adjust the latch up a little, 10 mm bolts
aren't there rubber bumpers on each corner to bare down on? like jimmy says 'the latch' is too far out of the way, surprised it doesn't come floppin open with any wind if this is the case. Do check the operation, a rubber or hide mallet stuck at just the right angle can tweak any misalignements to the catch-
Search Nissan Pickup Questions
Nissan Pickup Experts