My Ghibli II isn't feeling very well.
Can you help? Please!
 

Any owner having a problem with their Maserati can send me details and I will publish these, together with any subsequent advice I receive, on this page.

Just drop me a line at maserati123@btopenworld.com

 
 
 
 

Reply from Yiorgos in Denmark:-

 

Re: Ghibli GT.

Dear Enrico,

Thank you for the advice sent out last time. Once again I wish to say congratulations on your site!

I visit it very often just to discover each time something new and unique. Its contents is an all-time-round Maserati tribute to the trident's glorious past and future.

As a reply to your tips please see my findings after a visit to the service:

1. Magnetic reservoir cap. This was indeed a faulty actuator. It has been replaced and it now works.

2. The bonnet locking mechanisms have been properly lubricated and the hood locks firmly on closure. I have not until now experienced any problems in this area while accelerating.

3. The heating now works fine and there was no need to replace anything. The Maserati mechanic has 'helped it' somehow so let's wait and see.

4. It has been shown that there is nothing wrong with the electronic suspension and that all shock absorbers are in good working order. I have been told that the flashing of the red led is normal and it is only when the red led is constantly on that it indicates failure. The system has been tested with the Maserati equipment and it shows no failure. The check for the buzzing sound in each tyre has also been performed and all absorbers seem 'busy' each time the ratio is changed.

I do not know if I should investigate this any further. Any ideas?

Best regards and keep up this great site!

Yiorgos.

 
 
 
 

"Robert from Hungary sent in this question and to be perfectly honest, I've always wanted to know the answer to this problem:

 

"Hi Enrico,

Maybe you can help me:

I would like to get some body panels painted.

Do you know how to remove the panels 43 (bonnet spoiler) and 44-45 (drips), pictured on drawing No 52 of the Ghibli Parts Manual, in order to paint them?

Thanks for your help in advance,

Robert."

 
 

Reply from Enrico:-

Re: Removal of Ghibli 'Bonnet Spoiler'.

"CLICK HERE!"

 
 
 
 

Danny from The Netherlands writes:

 

"Hello Enrico,

I will buy a '94 Italian Ghibli ABS next weekend (one owner, 45,000 km).

I have one thing that worries me a little: the seller says that sometimes the light on the dashboard "Check Engine" alights. Sometimes - after immediate restart of the engine - it disappears, and sometimes it also disappears after 30 kilometers driving. He says that it cannot be the engine, because it runs very good.

According to his Maserati dealer/contact (who has no computer to check the "older Maserati Ghibli", but only the new 3200 GT), this is a common, minor problem which could be caused by e.g. corrosion or humidity. The Maserati guy said that the problem could easily be solved by resetting the computer (engine-management) of the car.

Is this true? Should I be worried?

Since you have a Ghibli yourself, do you recognize the problem?

I would be very thankful if you could reply to my question within short notice.

Thank you very much,

Danny"

 
 

Reply from Andy:-

 

Re: 'Check Engine' light.

This is a very common occurence. The engine check light comes on if the computer notices an incorrect fuel/air mixture. This can be caused by a number of things of which some are minor and some are major!

However, the most common reason for the light coming on is when the lambda sensors in the exhaust are either faulty or have a bad connection. If it happens mostly when the engine is hot then this is even more likely to be the cause. Switching off and restarting to extinguish the light is fine but if it keeps recurring then check the sensors. Trouble is that there are two of them (one for each bank of cylinders) and so fathoming which one is at fault requires the diagnostic kit unless you just replace them both.

Regards,

Andy.

 

Reply from Enrico:-

 

Re: 'Check Engine' light.

This has also happened to me a few times over the last three years. On the occasions that the "Check Engine" light did come on I stopped the car as a precaution, waited a couple of minutes and re-started the engine. No light and no problem. If the problem had persisted, I would have taken the car to a Maserati specialist like Bill McGrath Maserati.

Regards and enjoy your Ghibli, they're GRRRRREAT!

Enrico.

 
 
 
 

Michael in the Netherlands writes:

 

"Hi Enrico!

I´m going to install a navigation system in my 1996 Ghibli GT (with 6-speed Getrag gearbox and ABS).

I think about 2 options of finding the necessary tacho/speedometer pulse:

- somewhere behind the dash (some have suggested not to take it from there).
- somewhere on the gearbox.

Any exact directions on where I can find a tacho pulse would be greatly appreciated (if you know them of course!).

Regards,

Michael."

 
 

Reply from Michael:-

 

Re: Navigation System.

Enrico,

With some deduction and the help of others I found out the following:

- The Ghibli GT has the same electrical system as the Quattroporte IV (thanks to MIE).

- On the Quattroporte IV the speedometer pulse is on connection 5 of the left connector behind the clock unit (thanks to Beijer Autotechniek).

- The colours of connection 5 of the left connector: (black/red +blue-yellow).

I have now succesfully installed my 'Becker Trafficpro 4733' (beautiful machine BTW) last Saturday, speedometer pulse was OK!

Regards,

Michael.

 
 
 
 

Tom from Germany writes:

 

"Hi Enrico!

First of all I like to say, that your site is the best Maserati site in the web. Tom sure knows how to get a quick answer to his question!

So I got a question about the Ghibli 2-litre V6.

Do you know the loading pressure (max. boost) of the 306 hp version and of the Cup version?

I`ve been searching for a long time on the web, to get the answer, but I couldn't find it.

Greetings from Germany,

Tom."

 
 

Reply from Marcello:-

 

Re: Maximum boost pressure.

Hello Enrico,

First both cars have different turbochargers with the Cup having roller bearing turbos. Maserati don't give official figures for the maximum possible boost pressure. I have checked in the Engine Workshop Manual. The boost is normally adjusted at the waste gates and as when driving hard the needle on the boost guage is only allowed to enter the red zone on rare occasions, this is for reasons of reliability. As a general guide the Ghibli and the Ghibli Cup work to the following pressures:

Constant pressure 1.1 bar.

Peak pressure 1.4 bar.

Peak pressure is calculated in 4th gear at 1000 rpm then you press the accelerator to the floor until the waste gate opens and it should open at 1.4.

Hope this helps,

Marcello.

 
 
 
 

Gwen from Belgium writes:

 

"Hi nice site,

Hello my name is Gwen and I am from Belgium. My father has a 222 4v which he bought new 8 years ago and now has 320,000 km on the clock, that’s a lot but the engine and gearbox was replaced and the car has been resprayed. Now my father has bought a 1997 Ghibli GT.

I have some questions about our 222 4v:

1. The car makes always an clanking noise coming from the rear sinds the beginning after a check up (dealer) nothing was found.

2. Are there other Maseratis with that much of kilometres on the clock or are we the only ones?

3.I have seen now that there was a sport kit available for the Ghibli. Is it on our new Ghibli 97 2.8 standard or not?

4. Do you have the experience with the German garage 'Modena' and there tuning program?

 
 

Reply from Enrico:-

 

Re: Ghibli GT.
1. If this noise is coming from the differential and is just a slight 'clunk' it is quite normal in any Biturbo after a period of time. It should only require attention if it gets much worse.

No 2. I have heard of cars having covered 160,000 km but to date I have not heard of any surviving for 320.000 km. At what mileage was the engine and gearbox changed?

No 3. The suspension changes for the Kit Sportivo were made for the driver who requires a stiffer and lower set-up. The standard car is designed for most drivers and ordinary road use and are therefore not the same. I have listed the relevant part numbers to illustrate this point!

The front struts (shock absorbers) on your Ghibli GT are Part No. 366604108, the front struts for the kit arePart No. 366603108.
The rear struts (shock absorbers) on your Ghibli GT are Part No. 367004110, the rear struts for the kit are Part No. 367003109.
The front springs on your Ghibli GT are Part No. 366604333, the front springs for the kit are Part No. 366603333.
The rear springs on your Ghibli GT are Part No. 367004338, the rear springs for the kit are Part No. 367003333.
The front anti-roll bar on your Ghibli GT is Part No. 396650357, the front anti-roll bar for the kit is Part No. 366603357.
The rear anti-roll bar on your Ghibli GT is Part No. 367004362, the rear anti-roll bar for the kit is Part No. 367002387.

No 4. No, I have never dealt with them.

However, I do know a German owner who purchased some wheels for his car from them:

"Hi Enrico Yes, I have bought my ATS wheels there. Competent people, but the prices are high. For the wheels I've got a discount. I have to look how much %. Daniel."

 
 
 
 
 

Yiorgos from Denmark writes:

 

"Hi Henry,

Congratulations on your site which I find unique! It is an important pool of knowledge transfer between Maserati owners/enthusiasts.

I have recently acquired a beautiful Ghibli GT 2.8, 1995-96 first time registered in 1996 and hardly ever driven by the previous owner. (He had a few Masers in his garage!).

The car's handling is superb both at low and at high speeds and I don't have any problems at all with the engine or with the structural parts of the car. However, other things worry me a little and thus I would be grateful if you have any tips.

1. PETROL CAP - The button on the cockpit which opens the magnetic reservoir door does not work anymore and the door remains open (!) I have changed the 7.5 V fuse as per manual schematic, however the reservoir door would still not close. Have you got any ideas?

2. HOOD - I have noticed that when the car accelerates at high speeds the hood on the left corner cracks open a little. Have you seen this problem before with these cars? Do you know if this can be fixed as this is rather scary.

3. HEATER - The heating in the car is not very effective. Switched on auto mode and at 28 dgrs C, it does not seem to warm the cabin as it should. I am not sure if it is the heat valve or something else? Any ideas?

4. ELECTRONICALLY ADJUSTABLE SUSPENSION - According to the manual when the engine is switched on it automatically goes to positions 1 and 2. That works fine. However, I have noticed that both at stand-still position and while driving the red light on the supension control panel at the side of the gearbox flashes instantly . Is it normal that the red light flashes once in awhile both at stand-still position and while driving? If yes, why is this the case?

I would highly appreciate your kind help in this,

Looking forward to your reply,
Yioirgos."

 
 

Reply from Andy Heywood:-

 

Re: Ghibli GT.

Hi Henry,

No I. Sounds like it could be a faulty actuator.

No 2. It sounds to me as though the cable that operates the left-hand corner lock may require some lubrication as it mat not be releasing the locking mechanism properly after opening. Have you lubricate the bonnet (hood) locks? There are two cables for each lock, one cable is the emergency cable. Get somebody to tell you what is happening to the bonnet lock when you pull and then release the cable. There is also a rubber spacer situated in each corner of the bonnet, make sure this is set correctly. Be careful not to set the gap too narrow in case you damage the hood when closing. Some cars have repeated problems in this area and it is actually possible to fit another return spring for the locking mechanism to make sure that it always comes back fully when the bonnet is closed. Harry Metcalfe reported in Performance car when his car was new and managed to get the left hand side of the bonnet to come up at 166mph!

No 3. This seems to be a problem that afflicted a lot of the earlier Ghiblis. The heater is not good enough to pump the coolant round without help and Maserati suggested a modification which involved fitting an electric water pump in the plumbing going to the heater matrix. This mod did have a part number as I remember so it would be worth enquiring at your local agent.

No 4. I too experienced a similar problem and when the car was checked over, the rear left-hand shock absorber (damper) was found to be faulty and was replaced. These are very expensive to replace (I was lucky my car was still under the dealer's warranty), so I would wait for an answer from Andy in case it is something else. This could well be a shock absorber fault as Henry says and the way to check is to switch the ignition on and get someone to move the keypad through the four positions while you listen in turn at each corner of the car where you should hear the servo motor in the shock absorbers buzzing faintly as they change the rate. If you find one corner that is silent then that is likely to be the problem. Before you order a new unit, pull the wiring plug to the shock and clean the connections before trying again. It may just be a bad connection. HOWEVER, shock problems usually put the red light on constantly and flashing of the light is curious. There is a diagnostic procedure with these shocks which involves plugging in a wiring loom connector beside the gearbox which is normally left unplugged. On a few cars we have seen that errant mechanics have plugged this loom together thinking that they have cured a fault when in fact all they have done is put the keypad into diagnostic mode, at which point it will flash a code in red!

Hope this helps,

Andy.

 
 
 
 

Augusto from London, England writes:

 

"Dear Enrico,
It's been a while. I am enjoying the car immensely. I enclose some photos. I have recently noted a strange vibration and a knocking sound from the rear differential. Any ideas what this could mean?
Very annoying, can you please help or advise as to what to look for? This is my first Maserati.
Best Regards,
Augusto."

 
 

Reply from Andy Heywood:-

 

Re: Ghibli II.
Could be either;
A mounting bush for the differential that is worn.
A mounting bush for the rear suspension that is worn.
A knocking exhaust pipe or a particularly vocal limited slip diff coming in.
Most Ghiblis have a certain knocking from the rear on smart take off but a vibration is curious.
Check that the suspension alignment is correct (kerbing a rear wheel can knock things out) and check that the rear differential unit is not leaking oil.

 
 
 
 

Boris from Croatia writes:

 

"Hi,
First of all, I must say that your pages are among the best I have seen on internet (for Maserati). It gives me almost all information I need and what is also very important, they are constructed for easy and fast usage. I saw that you are preparing certain brochure for Biturbo maintenance. That would be excellent and I'm very interested to have one example.
However, to give you compliments was not the only reason I'm writing to you again (as you already suppose). I have some new little problems with my Ghibli GT. The air-condition panel on the dashboard is not functioning properly. When driving, it switch of itself and start to whistle. In that moment, panel is not responding at all. I can push any button but without respond. The only solution is to turn of the engine and start it again. Sometimes, when it "breaks down", I manage to switch it on again during the drive (without stopping the car) but I not always. Actually, I had the same problem in my old 422 (1989 model).
Second, I have problems with fuel indicator on the main dashboard. It is jumping from the zero position to position where it is indicating present quantity of petrol. When doing this, it is producing noise like knocking.
Has anyone any suggestions? Thanks,
Boris."

 
 
 
 

Govert from Sutton, England writes:

 

"I recently sold my 2.24v, moved back from 5 years in the Netherlands to the UK, and along the route bought a 1 owner 45 000km '95 Ghibli in Vicenza Italy. It is a beauty and is a Tundra Verde, 2.0 litre pre GT car, but with ABS and static ignition. I live in Sutton, Surrey and all is well with the car except I have one niggling technical problem with it.

The turbo boost system exhibits a condition where occasionally the boost fails to build up properly - the plenum pressure is being sent to the boost control solenoid and then to the waste gate servos - and the boost needle stays just shy of the yellow zone. I.e there is a faulty signal to open the boost control valve and I am down about 100 - 150 bhp.

I had the car checked in Holland before I moved back to the UK and I know that the problem is electrical. The mechanicals of the boost system are fine and I have tried to fix this problem for a while now. We/I thought it was a dodgy knock senor connector - but have not taken it out yet.

So, I would love to know if anyone really understands the system in depth, i.e I need knowledge about whether a signal is required from each knock sensor for boost to be allowed to build up by the ECU. Knowledge about the other electrical inputs to control the boost pressure that cause the above problem etc.

Alternatively, if someone with a Ghibli 2.0 or 2.8 could disconnect 1 knock sensor and let me know if the boost builds up, that would be great. If the answer was No, pressure does not build up in that test, then at least I know I am onto the right source of the problem.

I have even tried to measure the voltage from the piezo-electric knock sensor accelerometer but have insufficiently sensitive equipment (I need a scope for this). Also, does anyone know if the boost control solenoid (I replaced mine with a new one to no avail) opens and reduces boost pressure based on plenum pressure or rpm signal? Is plenium pressure converted to electronic signals anywhere?

In summary, if know anyone who can help, i.e who properly understands the full electronics of the boost system, I be delighted to hear from them and get Ghibli back to 100%.

Govert."

 
 
 
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