Mechanics

STARTER TURNS ENGINE BUT ENGINE WILL NOT START UP.

2000 Buick Lesabre • 10,000 miles

My Buick LeSabre will not start up. The starter is turning the engine just fine but the engine will not start up. It has been to 2 different mechanics and runs for a couple of weeks the first time and then just 3-4 days the second time. The mass air flow
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Wkcoleman
October 29, 2011.




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

If both fuel and spark is present-check the valve and ignition timing, this will lead you to problems

with compression and valves opening and closing at the wrong time/broken or jumped timing

belt/chain.

Tiny
Rasmataz
Nov 1, 2011.


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