Skip the auto shop - Our mechanics make house calls

Q: Car will not start - 2005 Cadillac CTS

asked by on

Check engine light came and car sputtered on acceleration yesterday and now car will not start. I think it is the ignition coil. From what I read online.

My car has 118000 miles.
My car has an automatic transmission.

A: Okay, so hopefully you have another vehicle...

Okay, so hopefully you have another vehicle to get around in. The first thing you need to do is get that code scanned. Once you have the code, you should be able to narrow down the possible problems quite a bit. It would not hurt for the time being to pull your spark plugs and inspect them. You can do an online search for "spark plug chart". Look for wetness or excessive blackening. Also, check the gaps on the plugs. If they look fouled, change them and make sure to gap them properly. You might be correct in guessing the ignition coil. To start, an engine needs fuel, spark, and compression; so verify you are getting spark, and get that code read and you should be well on your way to running again. If you would like to have this all taken care of for you, a certified professional from YourMechanic can come to your car's location to diagnose the no start and have it repaired properly.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: Battery dead after car sat for one month

Hi there. It sounds like the battery has an internal short. I would replace the battery. I would also make sure that the connections at the battery cables are clean and tight. If they are loose at all, then the...

Q: Won't start

Hi there. Assuming, the engine is mechanically sound. The part of the description you provided that concerns me is, the quad driver errors. The quad drivers are integral of the ECM (engine control module)/computer and control fuel injector operation. Assuming,...

Q: My car won't turn over and I can't smell my petrol - I have replaced my fuel pump and starter motor

Hello - check fuses of course. Still, this issue is probably a higher-level component failure, since both cranking and fuel supply are not working. Most likely failures are the ignition switch, or the alarm system. I would recommend having a...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.