[V8] stuck in Milwaukee / Tachometer trouble

[Richard Hill]

Hey Audifans,   While driving from UP Mich. to Milwaukee, to go to a wedding in upper-state NY , my V8 Q  kept  shutting down . I would have to wait 7-12 min. before it would re-start .   What I noticed was the gages were all fine  except the tach would drop out and i'm coasting .....re-start would  not happen when trying for 7-12 min. of engine being off...The stopping of motor seemed to be every 45 min. or so the first 3 times..By the time I was 25 miles from Milwaukee  the old girl was turning off every 4 miles .I parked the 1990 V8Q before heading into the city and had my daughter come get us. What would be causing this to happen ???  NEED HELP with diagnosis  ,,,Thanks in advance   Rick inthe UP