Gear Unavailable - Maserati Forum
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post #1 of 54 Old 04-27-2019, 09:10 AM Thread Starter
 
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Gear Unavailable

Hello guys. Need help from Dubai...

Just got a 2007 Quattroporte Sports couple of days ago with 98km. It was driving smooth with no issues.

Parked it last Thursday night after a long drive. Started the car after 2 days and it is showing "GEAR UNAVAILABLE".

After switching on /off the car couple of times, Now the car doesn't start at all (with display screen still on).

Transmission problem? Battery problem? 😔

Thanks in advance.
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post #2 of 54 Old 04-27-2019, 12:03 PM
 
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Open the door of the car and see if you hear a motor running under the rear of the car for a few seconds...If the F1 pump is bad the car will not start...Jason

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post #3 of 54 Old 04-27-2019, 04:07 PM Thread Starter
 
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No sound at all earlier ... Car is dead and wont even start.
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post #4 of 54 Old 04-27-2019, 05:26 PM
 
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Try a new battery yet? If the old battery doesn't have 12+ volts, try another one.
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post #5 of 54 Old 04-28-2019, 06:25 PM Thread Starter
 
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Tried that as well but still dead. I was informed by a garage that the car will not start with a faulty F1 hydraulic pump?
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post #6 of 54 Old 04-28-2019, 06:28 PM
 
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That is possible...Hit it with a small hammer with the door open and see if it runs...Jason

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post #7 of 54 Old 04-29-2019, 06:06 AM
 
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Quote:
Originally Posted by [email protected] Enzo`s Atlanta View Post
That is possible...Hit it with a small hammer with the door open and see if it runs...Jason
Gotta luv Jason. Hit it!
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post #8 of 54 Old 04-29-2019, 07:00 AM
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Quote:
Originally Posted by neptuno239 View Post
Gotta luv Jason. Hit it!
Percussive maintenance. Well known technique. Normally performed using a Glasgow socket.

Seriously if the pump is sticky, it's a quick, simple test.

C

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post #9 of 54 Old 04-29-2019, 06:08 PM Thread Starter
 
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Update:

End up going to 2 garage.

Garage 1

- was informed that the F1 hydraulic pump is busted and it needs to be replaced

- at day 1, they said they tried everything to get the car running but no luck

- day 2, was quoted a bit high for a used part so I decided to do the work somewhere else

- funny thing is that when I told them the next day that I'm gonna send a recovery truck to pick up the car, I was informed that I can drive the car as it is already running. Apparently they tried bleeding the car the previous day and it worked.

Garage 2

- the car was already running when they received the car

- they did a system diagnostic and did not found a major fault on the car

- this is their comment based on the diagnostic report:


"First info - looks like in the F1 system there is Pentosin CHF11S fluid. It has specific color and smell. This kind of fluid not match Maserati requirements. It works fine in newer Magneti Marelli Selespeed solutions as Lamborghini but not in older Ferrari/Maserati cars. In simple words, CHF11S is too "dry" for Maserati. Because of its different viscosity it can be a reason of F1 pump issues, which probably happened with your car. First step is to flush and clean the system then refill and bleed the system. Next thing which can affect the F1 is 68% clutch worn. Is not critical but can be reason of some issues from time to time. However it should not be a reason of stuck the system at all. Check in in progress..."


"Enigne ECU errors shows some oxygen sensors issues but... sometimes it is not exactly oxygen sensors issue but important signal about not properly working air mass meter, ignition or fuel injection issues. Oxygen sensor are the last gate of the powertrain system and errors reported there could be an important information about something completely different. Something similar like headache is not direct information there is brain issue, if you know what I mean. "


"There is air temperature sensor error which has significant role and is not only to inform the driver how hot or cold is outside but is used to prepare proper engine working strategy based on exterior conditions as well. If this sensor is giving false informations, many processes could be affected and provide other, hard to explain issues."



Bottom line is that they are just going to do flushing and bleeding of the F1 system and replace with the correct oil.

I'm still sceptical and a bit worried that It might just stop working again suddenly one day...


P.S.
I'm sharing the actual thing for the ones who'll have the same issue. Not recommending the same solution as I am not yet even sure if it will work out for me...
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post #10 of 54 Old 04-29-2019, 06:37 PM
 
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Nope..Not buying that...Air doesn't magically get into the F1 system...The brushes in the pumps wear out and if you touch them they can start working temporarily...Probably what is going on here...You don't want a used F1 pump...New F1 pumps are readily available....Jason

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post #11 of 54 Old 04-29-2019, 07:33 PM
 
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James, you kinda hi-jacked this guys thread....There is a search button on the top of the page...Jason

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post #12 of 54 Old 04-29-2019, 09:04 PM Thread Starter
 
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@Jason flushing/bleeding because of the wrong oil?
.
.
.
.
"looks like in the F1 system there is Pentosin CHF11S fluid. It has specific color and smell. This kind of fluid not match Maserati requirements. It works fine in newer Magneti Marelli Selespeed solutions as Lamborghini but not in older Ferrari/Maserati cars. In simple words, CHF11S is too "dry" for Maserati. Because of its different viscosity it can be a reason of F1 pump issues, which probably happened with your car. "
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post #13 of 54 Old 04-29-2019, 09:45 PM
 
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I don't know about that...It is really just using the oil for hydraulic purposes...It was working and now all of sudden it wasn't...I'm skeptical as well....Jason

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post #14 of 54 Old 04-30-2019, 11:42 PM
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AGIP CHF 11S was a recommended Maserati fluid as specified in the manual for certain years of the QP5 DuoSelect... Dealers were not able to get the AGIP fluid here in the USA so many of them used the Pentosin CHF 11S. Honestly, I doubt there would be any problem with this fluid. In later years Maserati said only Fluid Type: "CHF" without a clear spec or brand specified which is also to Jason's point that the fluid is simply being used as a hydraulic fluid. All of these cars had the same F1 pump and parts so really, it should be fine. Hope that helps

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post #15 of 54 Old 04-30-2019, 11:58 PM
 
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+1..I have used Pentosin in these cars for years with no issues...It is just hydraulic oil...It is the same fluid used by Jaguar and Rolls Royce for self leveling systems...Also the same fluid in most convertible top systems....Jason

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Last edited by [email protected] Enzo`s Atlanta; 05-01-2019 at 11:51 AM.
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