2003 Cadillac CTS Car turns but doesnt start

2003 CADILLAC CTS
60,000 MILES • 6 CYL • 2WD • AUTOMATIC
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KDIXON
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I have an 03 cts... about 2 weeks ago i sent it to cadillac to get it fixed. it worked for about 3 days then another problem started. when i sent it to cadillac it was just clicking and not starting. so i changed starter, and battery. the problem seemed to be wiring going to the comp. but now its just turning and not starting. i dont know what the problem is. i was thinking maybe the spark plugs or they forgot to tighten down some wires or something. i changed out the crank sensor last year, so thats pretty new too. what do u suggest i do with out having to spend a ton of money? please help
Mar 21, 2010 at 6:24 AM
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RASMATAZ
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Did you have a check engine light come on or has flashed prior to this problem and when was your last tune-up?

Cranks but no start condition:

Fuel and Spark:
Get a helper disconnect a sparkplug wire or 2 and ground it to the engine at least 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, 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,distributor pick-up coil, ignition control module, cam and crank sensors and computer Note: If it doesn't apply disregard it.
Dec 16, 2018 at 9:41 AM
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ANGELEYEZZZZ25
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I had the same problem a few days ago. Mines is the same year and model. I turned my key it wold not crank or start. They just told me yesterday that my computer went bad.luckily i am still covered under the factory warranty so it will be fixed tomorrow. You should try that
Dec 16, 2018 at 9:41 AM
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