[Glenn Wallace]

I had a month of my car stalling intermittently when slowing down (shifting to 2-1 when braking, either manually or the car doing it).

Then it was fine for a month.

This month it has done it twice in two weeks (without me shifting, just while braking and the car downshifting itself), and then will not restart (this is great fun when sitting in the middle of a busy road or freeway onramp).

I called roadside assistance, but in both cases got the car started again after 15-20 minutes. It is going to the dealer Friday, but I bet they will report it works just fine.

It might be an ECU issue I guess; the car behaved like it was flooded, or out of gas. Hard to tell on a drive-by-wire car. When I got it going today it took quite a lot of cranking, and then it ran very rough for 10 secs or so.

Anyone else have similar stalling and not being able to start issues?

 

[BrianS]

Mine had a similar problem. The car would stall as I approached a light or slowed down. It would happen within a couple blocks of starting the car, so the car was not at operating tempature. Several times it took 2 or 3 tries before it would start, other times just started right up. I looked back at my service records to see what they did to fix it and it says "installed new updated tcu software". Have not had the problem since that time.

 

[Glenn Wallace]

What year is yours? Last time I checked there are no TCU updates for the 05 CC. I can live with the stalling, but the not starting is quite dangerous.

This is when my car is at normal temp.

 

[BrianS]

Mine is an 02 CC. The stalling only happened when the car was cool. The starting problem happened twice, but the car was at normal operating tempature, and it did not coincide with the stalling. However, both problems happened during the same time period. I have not had the same problem since they did the update.

 

[Glenn Wallace]

Thanks. They are going to check with Maserati and see if there are any updates or "as required" flash changes. It is at the dealer now.

I can live with the stalling at low speeds (pretty annoying) but not being able to start the car for 20 mins is really dangerous.

 

[Glenn Wallace]

Update: dealer pulled a case of an 05 CC they had with the same problem, Maserati reflashed ECU and TCU (CC brain) and fixed ok.

My ECU and TCU are now on their way to NJ for reflashing.

Sounds promising.

They've not seen this issue on 04 nor 06. Which is odd, because the 05 was supposed to have TCU updates over 03-04.

 

[waltos]

I don't know if this is relevant, but I have an 02 coupe. I would be driving normally, the check engine light came on, and the car would not restart if I turned it off unless it sit for about 20 min. Never stalled. Sent ECU to factory, and it was OK for awhile, now problem recurring. Dealer cleared the codes (cyl. misfire, fuel pump malfunction of some sort), but felt that wasn't the cause . Let me know if your problem recurrs, or if you have any thoughts about a definitive fix. I have this sick feeling that even Maserati isn't too well versed in diagnosing and solving their own design issues.

Too bad the car is so much fun...

 

[RickBullotta]

Seems like the misfire codes on start up are "just part of the mystique" of the car. Mine throws codes once a month at least. Same codes all the time. Random misfires and cyl 3/6/8. Dealer replaced fuel rails, but it still does it now and then. Only happens on a cold engine/cold clutch, when the CC is groaning and straining and clunking to get the car moving, usually in reverse. My next step is to have the clutch checked out, as this just doesn't seem normal. I'm going to drive another Coupe CC to see how it feels when starting out cold. I'm also suspect of a fuel-delivery related issue (pump, etc.), but we'll see.

 

[Glenn Wallace]

Picked up the car, it certainly drives better - clutch action seems much more deliberate. We've had 5" snow so didn't drive it this weekend.

Time will tell if the problem is fixed.

 

[Glenn Wallace]

Update: the car is GREAT. Other than some clutch slippage when cold/damp and reversing, the car drives better than new and the Cambiocorsa gremlins appear to be banished.

I can't say enough good things about Seattle Ferrari/Maserati either; their service dept is top class.

 

[Jeffgv]

Gransport with the same problem

Here’s a new version of the stall won’t start. I have an 05 Gransport. Took it out for a short drive to the video store. Stopped and then upon restarting……turned over fine but no fire. Called the Maserati service center…had a truck lined up….Christmas eve and all
I was not thrilled to sit with the kids in the parking lot for an hour. So I tried to start it a few times. After about 20 minutes....boom it fired up. Drove home and shut it off. Same thing. We’ll see whats going on at the dealer.

Great forum. I’m new to the Maserati world and when I purchased it I kind of knew this was going to be part of it. But getting stranded at the video store was a bummer….hey nice car…too bad it won’t start!

 

[Glenn Wallace]

The dealer mentioned that only the 05's have this issue. I would get thee to the dealer and get the new ECU and TCU flash, assuming the GS also had the same issue.

The symptom was basically like the car was flooded, which I wouldn't expect on a Drive-By-Wire system. In my case, I think it flooded because it tried to keep it running when the CC forget to engage the clutch.

Hope you don't break down in traffic like I did (scary). Thumbs up for the updated version, it is going perfectly.

 

[Jeffgv]

05 Gransport no start update.

The update is…nothing they could find was conclusive. No real problem found, however a temperature sensor was replaced. Hopefully this will solve the problem and we are good to go!

Thanks for the suggestions and advice.