Question about 1999 Ford F250 Regular Cab

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Can,t get truck out of 4x4 low range

How do I get my 99 F-250 to come out of four wheel drive low range. This truck has shift on the fly and a automatic tranny.

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  • Jocky1 Aug 27, 2008

    It was the relay located under the hood next to the distrabution box. The motor wasn't getting any voltage.

  • gregfromvt Sep 26, 2008

    same problem, 95 F250 7.3, but with locking hubs.
    It manually can be shifted out of low but the light stays on and the automatic trans shifting rate is different. i've tapped but no luck. what relay? thanks

  • wrdeere Feb 08, 2009

    2001 superduty f-350 won't come out of 4x4 low range

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Try putting your truck in neutral and then shifting into 2 wheel drive shift on the fly does not apply to 4 low only 4 high and on electric shift models it wont shift unless your ****** is in neutral.

Posted on Dec 04, 2011

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Shifting motor stuck .try tapping lightly on shift motor under truck at back side of transfer case while some one works the switch to 4x4

Posted on Aug 26, 2008

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I would not recommend any 4x4 to shift hi to lo on the fly because they don't have syncromesh in the transfer case and the change of speed is to great

Posted on Nov 27, 2013

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1 Answer

2002 ford ranger - Where is the 4x4 actuator located


On the transfer case
Transfer Case - Electronic Shift
The four-wheel drive electronic shift-on-the-fly feature electrically shifts the vehicle transfer case between 2WD, 4WD HIGH, and 4WD LOW. The system mode is selected by the operator through the mode select switch (MSS) on the instrument panel. The operator is informed which mode the system is in by two instrument cluster indicators: one for 4WD HIGH which appears as 4WD, and one for 4WD LOW, which appears as 4WD LOW. Shifts into 4WD HIGH can be made at any speed. When shifting into 4WD HIGH with the vehicle stationary, tooth blockage may occur preventing shift completion. When the vehicle is driven above 8 km/h (5 mph) the shift will complete. When shifting in or out of 4WD LOW, the four-wheel drive (4WD) control module requires that the vehicle speed be less than 5 km/h (3 mph), the brake pedal be applied, and the transmission be in NEUTRAL (automatic transmission) or the clutch pedal be depressed (manual transmission).
The gearmotor encoder assembly is mounted externally on the transfer case. It drives a rotary cam which moves the mode fork and range fork within the transfer case between the 4WD HIGH, 4WD LOW, and 2WD range positions.
The four-wheel drive (4WD) control module controls the gearmotor encoder assembly that shifts between 4WD HIGH, 4WD LOW, and 2WD modes.

Mar 17, 2017 | Ford Cars & Trucks

1 Answer

How do I repair the four wheel drive on a 1999 Ford Ranger XLT?


It depends on what is wrong , is the 4x4 light flashing ? Are you aware of the complexity of the 4x4 system ? Has a electronic control module , has the ability to set an store DTC'S - diagnostic trouble codes !
Transfer Case The four wheel drive system is an electronic shift 4X4 system that allows the operator to choose between three different modes. The operator can switch 4X4 HIGH modes at any speed. To engage or disengage 4X4 LOW the vehicle speed must be less than 5 kph (3 mph), the brake depressed, and the transmission must be in NEUTRAL.
The shift motor sense plate, an integral part of the electronic shift motor, informs the generic electronic module (GEM) of the transfer case shift motor and contact plates A, B, C and D position.
The digital transmission range (TR) sensor is located on the LH side of the transmission, and informs the GEM when the transmission is in the NEUTRAL position.
The electronic shift motor is mounted externally at the rear of the transfer case. It drives a rotary cam which moves the mode fork and range fork within the transfer case between the 4X4 HIGH, 4X4 LOW and 2WD range positions.
When the GEM verifies the completion of the transfer case shift from 2WD to 4X4 HIGH (reading the contact plate positions), the GEM will then energize both pulse vacuum hublock (PVH) solenoids (supplying ground for 45 seconds). The PVH solenoid will allow a HIGH flow of intake manifold vacuum to the "wheel end hublocks", engaging the wheel end hubs to the front differential and transfer case to achieve four wheel drive.
Here are just a few DTC'S the system can set an store in the module !
P1804 4WD High Indicator Circuit Failure GEM GO to Pinpoint Test C . P1806 4WD High Indicator Short to Battery GEM GO to Pinpoint Test C . P1808 4WD Low Indicator Circuit Failure GEM GO to Pinpoint Test C . P1810 4WD Low Indicator Short to Power GEM GO to Pinpoint Test C . P1812 4WD Mode Select Switch Circuit Failure GEM GO to Pinpoint Test A . P1815 4WD Mode Select Switch Circuit Short to Ground GEM GO to Pinpoint Test A . P1820 Transfer Case CW Shift Relay Circuit - Failure GEM GO to Pinpoint Test A . P1822 Transfer Case CW Shift Relay Coil Short to Power GEM GO to Pinpoint Test A . P1824 4WD Electric Clutch Relay Circuit Failure GEM GO to Pinpoint Test A . P1826 4WD Low Clutch Relay Short to Power GEM GO to Pinpoint Test A . P1828 Transfer Case CCW Shift Relay Coil Circuit Failure GEM GO to Pinpoint Test A . P1830 Transfer Case CCW Shift Relay Coil Short to Battery GEM GO to Pinpoint Test A . P1838 Transfer Case Shift Motor Circuit Failure GEM GO to Pinpoint Test A . P1846 Transfer Case CONTACT PLATE "A" Circuit Failure GEM GO to Pinpoint Test A . Now are you sure you really want to mess with this ? You would need a factory diagnostic scan tool to check this out before you start replacing parts !
Here

May 30, 2015 | Ford Ranger Cars & Trucks

1 Answer

WHAT IS THE CORRECT WAY TO GO FROM TWO WHEEL DRIVE TO 4 WHEEL DRIVE ON A 2003 GMC 2500HD


just shift to 4x4 on the fly as long as you are not going faster than 80 kms an hour.
four wheel drive low gear you will need to stop and put it in neutral, keep the brake to the floor and shift.

Dec 24, 2010 | GMC C2500 Cars & Trucks

1 Answer

4wheel drive on the fly...locked in 4 wheel drive


You must shift out of 4X4 with the truck in neutral while it's running.

Jan 07, 2010 | 2004 Ford F150

1 Answer

I have never driver a 4 wheel drive. I am going from portland oregon to phoenix az. not sure how or when to switch to four wheel. does the truck need to be in park? etc.


Do you have manual locking hubs on the front? If you do, you have to turn them to 'lock' position. If you have automatic hubs, you skip that step. Never shift into 4x4 low range while moving. You must come to a complete stop to shift in or out of low range. Regular 4x4 (high range) can be engaged while you are moving. Let off the gas, and put it in 4x4 high range, do the same to go back to 2 wheel drive. Vehicles that are part time 4x4 (can be shifted in and out of 4x4) should never be driven in 4x4 while on a dry surface, as you can cause excessive wear or even failure of the system. So only use it in snow, off road, etc. Have a safe trip!

Dec 13, 2009 | 1994 GMC Jimmy

3 Answers

Wont shift back from 4x4 low, to 2x2


I also have a 2002 Envoy. Shifting to and from 4wh and 4wa can be done on the fly but shifting to 4wL has to be done stoped and while in neutral. Try that. Otherwise I'm afraid its a new computer for you. Its located under the left rear seat and you need a loan for one.

Sep 05, 2009 | 2002 GMC Envoy

1 Answer

1993 4X4 BLASER 4WHEEL DRIVE


Your blazer is equipped with a shift on the fly four wheel drive. That means that at speeds less than fifteen miles per hour you can shift into or out of four wheel drive by simply pushing the four wheel high button. If you wish to shift into four wheel low. Stop, put the transmission into park or neutral, and push the four wheel low button. Same procedure for shifting back out. Never shift into or out of four wheel low while moving. And be careful in four wheel low. At full throttle your still barely moving, you don't want to blow your engine up!

Dec 31, 2008 | 1994 Chevrolet S-10 Blazer

2 Answers

Shifting to four wheel drive.


If the Amigo is like other fwd setups,you should be able to pull the floor shifter back one notch for fwd in the standard(or high)driving range.I don't know if you can shift "on the fly" with the Amigo,so I would shift it to 4x4 while stopped in nuetral. When you pull the shifter to the left(towards the driver)and all the way back,that should be 4x4 in the low range(for speeds under 20 mph only). I would not recomend that you drive you vehicle on the highway in low range....The button on the dash may actually be a light to let you know when you are using the fwd. Make sure you kick it back to 2wd when you return on dry pavement.Any Isuzu dealers' service department can also help you on the matter. Good Luck!

Dec 19, 2008 | 1989 Isuzu Amigo

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