Engine Mechanical problem
1997 Chevy Suburban V8 Four Wheel Drive Automatic 125000 miles
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my car will turn over but it will not start. i changed tha plug , wires,rotor,@distcap still wont start help plz.

Do below to determine if its fuel or spark related problem

Get a carb cleaner and spray into the carb or the throttle body on an EFI. Did it start and die? If not disconnect a sparkplug wire or 2 and ground it to the engine -have helper crank engine over-do you have a snapping blue spark? If so-you have a fuel problem, check the fuel pressure to rule out the fuel pump/pressure regulator and listen to the injector/s are they pulsing or hook up a noid light. No snapping blue spark continue to troubleshoot the ignition system-power input to the coil/coil,distributor pick-up coil, ignition control module, cam and crank sensors-