2003 Cadillac CTS Car turns but doesnt start

KDIXON

MEMBER
2003 CADILLAC CTS
6 CYL
2WD
AUTOMATIC
60,000 MILES

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

2 Replies

RASMATAZ

MECHANIC
75,992 POSTS

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.