Chevrolet Repair: Truck dies and restarts, chevy k1500, rubber hammer

Question
Hello. We have a 1995 Chevy K1500, M/T, 305 TBI, 265k miles. For the past few months it has been dying on us. When it first started it would take several minutes for it to restart. Now it will start right back up. It does it while driving also. When this happens it starts back up on its own. It acts like the key was momentarily turned off and then back on (the dash lights come on like when it's started). It does it mainly after the engine has warmed up. I've read that it may be an ignition problem. I did a resistance check on the cap and coil and they checked out fine. I'm a bit stumped. Any help would be greatly appreciated. Thank you.

Craig

Answer
HI CRAIG,IT SOUNDS LIKE YOUR TRUCK IS POSSESSED !! ONLY KIDDING. THE PROBLEM IS DEFINITELY NOT SECONDARY IGINTION.. THE FIRST THING I WOULD DO IS WARM UP THE TRUCK REMOVE THE STEERING COLUMN COVERS AND TRY PULLING ON THE WIRE HARNESS TO THE IGNTION SWITCH AND SEE IF THIS WILL ACT UP, IF SO CK ALL THE WIRING HARNESS AT THAT POINT. NO LUCK THERE TRY HITTING GENTLY WITH A RUBBER HAMMER AROUND THE IGN SWITCH AREA AND SEE IF THIS ACTS UP.NO LUCK THERE THEN IT IS VERY POSSIBLE THAT THE IGNITION SWITCH GETS HOT AND OPENS UP THE CIRCUIT,STALLING THE ENGINE TEMPORARILY..IT ALSO COULD BE THE MAIN WIRING HARNESS TO THE IGNTION MODULE STARTING TO FAIL. AGAIN TRY PULLING ON THE HARNESS AND SEE IF THIS ACTS UP...I WISH THERE WAS A FOR SURE ANSWER BUT THIS IS SOMETHING I WOULD NEED TO SEE AND HAVE SOME TESTING TO SEE WHATS WHAT..IF YOU CAN BACK TO ME WITH MORE INFO WE MAYBE ABLE TO PINPOINT THE PROBLEM..I HOPE THIS HELPS. WHEN YOU LEAVE THIS SITE COULD YOU PLEASE RATE MY ANSWER, THIS WILL HELP ME. THANK YOU TOM..