I suspect your problem is with the hood latch. I had a problem with my Mustang GT where the hood would pop up to the safety catch if I hit a bump in extremely cold weather (below about 20 degrees anyway, which is rare for here) I assume it had to do with the contraction of metal vs. the factory fiberglass hood.
2010 Plum Crazy SRT8 with Manual Transmission-------
Mods list: K&N Typhoon CAI, Skip Shift Eliminator , Petty Strut Tower Brace, Diablo Predator 91CAI tune, License Plate backup camera with Lockpick V2, mini spare tire and adapter, Moroso Catch Can, some BT bling, 3rd brake pulser, Larry's mod Hurst shifter, coming soon Web Electric Sequential tail lights and LED under door lights
I have done this several times also, but I find myself doing it when I go to exit my foot hits the latch and pops it open , some times I don't notice I've done it til I get back in the car and drive away...
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