Mechanics

MOTOR CRANKS 3 OR 4 TIMES THEN DRAGS OR REVERSES WONT START

2001 Oldsmobile Alero

Started with a serge @55mph, then idling ruff, I had a dioes ran on it and it came back as p0420, p0342, &p0304. When I checked the plug wires #6 wire was damaged also. After I changed both plugs & wires & set the sucurity system, checked the fuel setup bla bla bla. Still wont start
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Daranders
September 5, 2011.




Could be the catalytic converter clogged-up preventing it from starting-

http://www.2carpros.com/articles/car-cranks-but-wont-start

Get a helper disconnect a sparkplug wire or 2 and ground it to the engine atleast 3/16 away from ground-have helper crank engine over-do you have a snapping blue spark? If so-you have a fuel related problem, Do you hear the fuel pump come On when you turn key on? If not check fuel pump fuse and fuel pump relay if okay-check the fuel pressure to rule out the fuel filter/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 packs,coil's resistances,cap and rotor,distributor pick-up coil, ignition control module, cam and crank sensors and computer Note: If it doesn't apply disregard it and keep testing

Tiny
Rasmataz
Sep 5, 2011.


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