4X4 LIGHTS WENT OUT STILL IN 2 W DR BUT TRANSFER CASE THINKS 4 LO
WAS BACKING MY TRUCK DOWN ON SOME WET GRASS IN 4 WH HI. STOPPED THE VEHICLE, PUT IT IN NEUTRAL PUSHED THE 4 WH LOW BUTTON. IT LIT BRIEFLY THEN WENT OUT. STILL IN 2 WH DRIVE BUT STUCK IN LOW GEARS. ONLY DOING 12 MPH AT 4K RPM. WAS TOLD TO RELIEVE PRESSURE BY GETTING TRUCK OFF GROUND, DISCONNECTED BATTERY IN CASE IT WAS IN MEMORY LOCK. NOT SURE WHAT TO DO NEXT. CAN'T DRIVE IT TO GET IT LOOKED AT, WOULD HAVE TO TOW IT ON A ROLLBACK
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It could be a junk switch or it could be bad contacts inside the transfer case motor.. Does the transfer case switch to the selected gears? Everytime? If so, you might try another switch. If it does the same, I would say the motor contacts are bad. Replace the motor if you want the lights, But I personally wouldn't do it until the motor quit switching gears. They're not cheap.
The service 4x4 light coming on indicates problem with the system an DTC'S - diagnostic trouble codes are stored . Before replacing parts have a qualified repair shop do diagnostic's . ! Guessing an replacing parts on electronically controlled systems never fixes cars.
Do you know what DTC'S are ?
DTC P2160 or P2161
Which transfer case does it have ?
Transfer Case - BW 4485-NR3
Transfer Case - MP 1222/1225/1226-NQG
Transfer Case - MP 1625/1626-NQF
Transfer Case - MP 3023-NQH
Transfer Case - NVG 261-NP2
I have had this problem two years in a row, #1 there is not enough oil in the differenctial or it needs changed. use a quality lubrican and fill it full. Fords dont like it when their not full. #2 check the transfer case. Mine was low on oil too.
I live in the Tungra of Iowa so have a mechanic do this on a hoist. I am lucky to have a friend with one.
Now for some reason I have a leak in the front end that I cant see??? No oil dripping, no wet spots by the axil or pumpkin, but every year I need more fluid. It is really a problem and I am stumped by it I have been turning a wrench for almost 40 years and never seen anything like it.
#1Put the Ford in Nuetral #2 switch to Lo 4x4 3 then go into Drive. If you need 4x4 hi roll out in Low for 15 feet stop the truck put it in nuetral again and the in high 4x4 . These a electric shift POS s and they are tempormental.Good Luck friend.
you can shift on the fly from 2 hi to 4 hi at any time as long as you are not under power or in other words on the gas. Hold at a steady speed or let up on gas pedal a little bit then shift, DO NOT shift truck when vehicle is speeding up or taking off. Also do not shift when wheels are spinning or when you are turning a corner. The same goes for shifting from 4 hi to 2 hi. ** Now to shift into 4 lo the truck should be stopped and put trans shift into nuetral then shift transfercase into 4 lo, and never exceed 25 mph in 4 lo position !!!!!!! To shift out of 4 lo and go to 4 hi or 2 hi stop vehicle and shift trans into nuetral then make your 4x4 shift then put trans into forward or reverse gear and VROOOOOM your on your way. Remember to NEVER and i mean NEVER shift into 4 lo while vehicle is moving forward or reverse as you will do serious damage to any and all parts of drive train. You should not run 4x4 at all unless you need to pull something where you need extra traction like a boat out of water,a stuck vehicle,or if roads are slippery, or muddy. also don't be alarmed as sometimes when in 4 wheel drive and you turn corners you will notice a binding or jerking motion, this is normal and if this is occurring i would recommend going back to 2 hi position. HAPPY TRAILS to you with the new toy. I only buy vehicles with 4x4 and have never owned a 2 wheel drive in my 31 yrs of driving. I love the idea that i have extra power and traction options when i need it,the only bad thing is your boss says " what do you mean you can't make it in,you have a 4 wheel drive!
Hi my name is Juan and I do own a trailblazer with the same year 2002 and I read the problem you have let me try to help you Have you try to shift to 4hi with your transmission in neutral ? the transmission needs to be in neutral in order to shift the transfer case to 4hi and the vehicle needs to be completely stooped also is your service 4wd light on?? if the light is on your transfer case needs service and it can be as simple as the switch inside your car or a solenoid that has not been detected by the computer
Just to clarify, the "transmission" is not stuck in 4-Lo. It is the "transfer case" that is attached to the transmission that actually engages the 4-Hi and 4-Lo modes. To properly shift your vehicle into 4-Lo, you know that you have to shift the transmission into neutral and slow down to less than 5 mph. Once your vehicle slows down to this range, your can switch your transfer case into 4-Lo mode. Due to the inner workings of the transfer case, the actual shift into 4-Lo may take a few seconds to complete. This is normal and does not signify that there is an issue. All transfer cases that have 4-Lo mode will act this way regardless of the make or model. To make a long story short, to shift out of 4-Lo you must follow the same steps that you took to shift into 4-Lo, just in reverse order. Switch the transfer case to 4-Lo mode if it isn't already there. Slow down to less than 5 mph (your vehicle must be moving, though). Then, shift your car into 4-Hi or 2WD. Give your vehicle several seconds to complete the shift. The transfer case indicator light will flash until it is complete. When it does complete the shift into the new gear mode, you will most likely hear a "clunk" (the range sleeve inside the transfer case disengages from its mating spline) from under your car. Again, any transfer case with 4-Lo (regardless of make or model) will exhibit this same noise. This should help you get out of 4-Lo. It is good practice to shift your car into and out of 4-Lo at least a few times each year to keep all of the splines free of corrosion and build-up. Based on the age of your vehicle, your transfer case may also need a complete flush and some new transmission fluid. Hope this helps.
check the rear differential as well as the transfer case...you may have broken something in both of them...i have seen it happen...since 4low uses a different gear it is possible for it to move in low and not 4 high