Sorry if this is the wrong place to ask …gave my car good clean this morning including under bonnet - just taken it for drive and after a few minutes the dials on the dash ( speed revs oil fuel) all lost power then almost immediately came back on then few minutes later did it again….about five times in 30 mins. Have a dislodged something in my cleaning or is it possibly more serious Thought I’d get a view before ringing my garage