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4wd truck stalls and will not restart til i put it in 2wd
When i am driving, in park, or in neutral and i try to put vehicle in 4wd drive it stalls out. it will turn over but will not start until i put it back in 2wd. any thoughts? suggestions?
Re: 4wd truck stalls and will not restart til i put it in...
It sounds as though your ICV is at fault. This is a idle compensation valve which is used to compensate for extra load put upon the engine while running an AC unit or a 4 wheel initiation.
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first learn what part time 4wd means.
it means only use off roar or on ICE, the users guide even tells that
4wd is not ALW,
some jeeps have track lock that has basicall
AWD, 4H, 4L, 2WD and Neutral.
or has words center locked.
do not use 4h/4l or locked on pavement free of ice
what your are doing is vary damaging to the transfer case.
it is called WINDUP,
do not windup Front to Real like now the cure.
put 1 (at least) one tires on dirt, or ice.at dead crawl 1mph or less
now shift out of 4wd, to 2wd or AWD
or jack up one wheel, and it unwinds and can be shifted.
the other clue your are doing this all wrong
as car moves wound up, the steering wheel fights your hands
this car was sold 3 ways (besides engines/trans)
2wd only car.<< not yous sure.
4wd /2wd only transfers case (offroad only)
AWD called selectTrak. and has 4wd as choice same rule as above.
the operators guide is free and was in the glove box new.
the 2 transfer cases are both covered in the guide for SURE>
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.
Sounds like your transfer case in neutral. You have to engage the transfer case back into gear then shift selector to drive or reverse. When your transfer is in neutral the transmission will not operate. Good luck.
As I recall the 96 blazer had electronic shifting for 2wd to 4wd. There should be a small panel on the drivers dash buttons for 2wd, 4wd lo and 4wd hi.
Simply press the desired button while stationary and if the system is functioning properly then it will shift and the light for the engaged type of drive will be lighted. Generally you would like to be in 2wd for this vehicle.
I have the same problem. It is intermittent and sometimes shows up with service transmission message. To get rid of it just put the truck in park, press the 2 high button and shift into drive while it is still flashing. I will worry about it more when it blows up. You can drive with the vehicle showing the solid neutral and it seems to make no difference. It has to be a wake up problem between the control modules. It only happens on start up.
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