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Maserati cambo corsa shift problems how can I tell if my f1 actuator is bad or something different I took it loose goes into R, 1 and 2 no 3 4 5 6 also no sound on 3456 please help

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What does EPC light mean on the dashboard


Probably 'Electronic Power Control'. Is your car a VW?
It's basically a sensor problem telling you that something is amiss. There's many sensors in the engine and also ABS. One of the sensors is indicating there's a fault on that particular system.

If the engine seems to be on reduced power it could be a throttle problem. Also check your brake light switch.

Apr 25, 2016 | Cars & Trucks

1 Answer

I cannot get my 07 maserati to go from drive to neutral. The car is off I need some guidance


Exactly what type of Maserati do you have? Gran Sport, Gran Turismo, Quattroporte, etc. Do you have the F1 system or the regular automatic transmission?

Mar 09, 2016 | Maserati Cars & Trucks

1 Answer

Hello, I have a 1992 Chevy K1500 pickup, 5 speed, 4WD. I just replaced thermal 4WD actuator for the front axle with the new motor type and with a new wiring harness. Always goes into 4WD right away now....


Sounds like you have the actuator switch set to tight. You might want to try to adjust the switch so it has a little room between the switch and the shifter. Hope this helps.

Apr 12, 2017 | 1992 Chevrolet K1500

1 Answer

4 wheel drive dose not engage the button lights up but the indacator light that shows the drive train is engaged dose not light. any tips?


There several differant thing that could cause this.The system is vacuum opperated it picks up vacuum from the transfer case witch gets it from the main engine vacuum. You say you have the push bottem shift thats i switch but it lights up so thats likely OK there is another switch at the transfer case that could be the problem. But the most likely thing would be a part thats located under the battery tray called the vacuum actuator. Its a diaifram that pulls the cable that goes to the front transaxle that shifts the vehicle into 4 wheel drive. If its not working it could be a vacuum leak a linked cable or the actuator is bad or the clip that holds the cable to the actuator has poped off or even the clip that holds the other end of the cable has poped off. But i can tell you this 85 to 90 % of the time its the actuator you need to remove the battery then the battery tray unplug the hose from the actuator put a differant hose in its place this may sound slightly crud but **** on the hose if the actuator dosn't move its no good and thats the problem. Then you can disconnect the cable jack the front end of the vehicle up and try to pull on the cable you will have to rotate the wheel as you are pulling and if it engauges the system it fine. If for some reason you can't find a problem then you need to start looking at the switches or other vacuum line issues but its not likely. I hope this will get you on the right track

Dec 30, 2010 | 1996 Chevrolet Blazer

1 Answer

1991 K2500 pickup, 350tbi,4l80 trans, 4wd not working, I have gotten it to turn on a couple of times but it never stays working. The transfer case does lock in when its put into 4wd. also the actuator is...


On the full size, the front actuator is electric, not vacuum.

When in 4wd mode, a switch on top of the transfer case conducts 12 volts out to the actuator. Wire #50 (brown) is the 12v feed, and it conducts to the light blue wire (#900) to the actuator.
When shifted out of 4wd, the switch opens up and no voltage goes to the actuator.

Check voltage at the connector for the front actuator (at the front differential - it looks like a large bullet that threads into the front diff.) If it has 12 volts, the actuator is the problem. If it does not have 12 volts, check the transfer case switch and the power feed to the transfer case.

I'll assume it is the actuator, if the plug to the actuator is getting 12 volts when in 4wd.
The way this actuator works, is it is a sealed chamber that gets heated by voltage. When it heats, the pin in the end swells and pushes a shift fork in the front differential. The shift fork engages a spline on the passenger side of the differential, and boom! you have 4WD.

GM offered an upgrade to this actuator that is a motor instead of a heated device. However, it requires a small harness addition, a spacer, and a new actuator. It is about a $150 to $200 option.

Good luck. The actuator is usually the problem 90% of time but recheck all of the wire harness just to maker sure there is no short before replacing any parts.

88-UP C/K ACTUATOR UPGRADE
VEHICLE SERVICED: 1994 CHEVROLET FULL SIZE
PURPOSE: IMPROVE AXLE CONNECT ENGAGEMENT TIME AND
COMPONENT RELIABILITY.

SYMPTOMS: NO FRONT DRIVE AXLE ENGAGEMENT WHEN SHIFTED
INTO 4X4.

Obtain the following GM part numbers:
(1) 26060073 Actuator
(1) 88959465 Harness/Spacer Kit

Jan 10, 2010 | 1991 Chevrolet K2500

1 Answer

I've just replaced the entire clutch, flywheel and F1 sensor on my Quatroporte to overcome a problem with the car 'going into neutral' whilst driving, I was told this was becasuse of excessive clutch wear,...


Generally the problem you have is related to bad synchro gears inside the transmission or worn shift forks (also inside) This sometimes can be caused by driving with a bad clutch, which causes you to force the gears while shifting, but can happen from normal wear as well.

Jul 08, 2009 | 2005 Maserati Quattroporte

1 Answer

In order to put my 1994 lincoln towncar in gear i have to turn the ignition and gear stick at the same time. then the stick is pulled into neutral then i can start car and put in drive..whats wrong with my...


Sounds like the "shift lock actuator". It's a common Ford/Lincoln problem. It's basically a safety device to ensure the car is turned on and your foot is on the brake b/4 you can place the car into gear. Here is a gr8 piece describing the problem
" This is a problem with the Shift Interlock System and not the transmission. Bet you're glad to hear that. The Shift Interlock System requires the key to be in the "RUN" position and the brake pedal depressed in order to shift out of "PARK". This is to prevent possible vehicle runaway. There are a couple of possibilities here. The first is the Brake Pedal Position (BPP) switch. You can usually tell if this is bad if you have no brake lights at all. Another possibility is a bad Shift Lock Actuator or Shift lock solenoid, located under the console.
First thing to do is check fuses 28 and 32 in the fuse box, if you haven't already done so, and make sure they are good.
78584194.gif To check the BPP switch, check for power at the light green/red and light green wires with a test light with the key in the "RUN" position and the brake pedal depressed. If you have power there, then check for power at the light green wire at the Shift Lock Actuator.
78185284.gif f you have power at the light green wire at the Shift Lock Actuator, ground the black wire. If you hear a click, then you have a bad ground and it needs to be repaired. If not, the Shift Lock Actuator is bad and needs to be replaced."

I hope this give you a better understanding and I wish you the best of luck with your problem.

May 06, 2009 | 1994 Lincoln Town Car

1 Answer

1999 CHEVY Z71 4X4 STUCK IN 4X4


i had the same problem and it ended up being short in the front axles where the actuator at or the switch on the transfer case under body where the shift lever at

Oct 22, 2008 | 1999 Chevrolet Silverado 1500

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