Paul asks…
How fast can you drive in 4×4 High? What is the average speed for 4×4 High opposed to 4×4 low?
I just traded to a 2008 GMC Canyon 4×4 & have never owned a 4×4. What are the details/advantages of running 4×4 high & 4×4 low?
Is there also some form on extra maintenance I need to keep up with on a 4×4, like oil changing or lubing somewhere (besides regular engine oil) (Maybe like in the transfer case)? I noticed it “clunkes” when shifting into 4×4 High, then Low.
kenspong answers:
There is gear lube in the front axle differential (same stuff as in the rear axle). The transfer case uses ATF, same stuff as in the automatic transmission. Both will need to be serviced periodically, look in the owners manual for recommended intervals.
Speeds will also be listed in the manual. Low is usually around 30-40mph (depending on gear ratios), and high range will be usually around 55mph. You can travel highway speeds in 4wd, but then what was the purpose for using 4wd during bad road conditions…
The clunk you hear is normal. It is just the gears engaging (and any mismatch in gear tooth position).
Mandy asks…
How to disconnect 4×4 on a 2000 ford explorer?
I have a 2000 ford explorer xls 4×4 which has been jumping into 4×4 at random on dry flat pavement. After ford having it for two weeks, and replacing the shifting motor and 4×4 relay to no avail, I had them remove the front driveshaft. It now obviously cannot drive the front wheels, but the lights still flash and I was wondering if the transfer case still trying to go into 4×4 would wear on the transmission and if there are any fuses or anything I should disconnect to stop it from attempting to shift into 4×4.
kenspong answers:
Look through the owners manual and find the fuses there should be one marked with the 4×4 insignia pull the fuse and there might be one under the hood also
Ruth asks…
How much does a 4×4 cost in the Philippines?
among other cars that are similar to a 4×4 what can you recommend. not necessary brand new.
kenspong answers:
Brand new, the isuzu dmax can set you back around P1.5 million. Second hand, maybe you could get it for around P800K. You could also get the pajero, which costs over P2M brand new. Second hand, you could get an older model (around 2002) for around P1.2M.
To be sure, you could buy those monthly second-hand car sales magazines at national bookstore. Or you could buy the sunday edition of the manila bulletin – they have dozens of pages of classifieds on sundays.
If you’re buying second-hand though, make sure you know your way around cars and just how much you can haggle. Also, don’t buy any second-hand cars from iloilo (you’ll know them from the plate numbers – they usually start with the letter F). There was a huge flood here several months back, so a lot of people here now are selling their cars for a song. Of course, after a 15-foot flood goes over a car, it’s never the same, even after it’s repaired.
Good luck!
Maria asks…
How do i know the 4×4 is engaged on my 2002 Chevy Trailblazer?
There was a light above the switch knob that flashed 3 times as i switched from 2hi to AWD to 4hi to 4lo. Recently the light went out. Im not sure if it’s the bulb thats out or If i need to get it serviced. There is no indication from the dashboard (ie: service 4×4 light) that something is wrong with the 4×4. We just had a nice little snowstorm here and i want to know if i should have my 4×4 serviced or if it’s just an inexpensive light bulb that needs to be replaced. I tried to use 4hi and AWD in the snow, it felt like my wheels were losing grip, is it just me or is the 4×4 not working?
kenspong answers:
It could not be engaging. I thought I read somewhere that there were problems with some earlier models with which the 4 wheel drive was not engaging. But it could just be a light. To me it seems something worth going to the dealer for.
George asks…
What is the maximum load a green treated 4×4 can hold?
I have a small roof above my porch. There is not another porch above it, right now it’s held up by treated 4×4‘s. I need to find out how much a 4×4 can hold and be able to prove it to the building inspector. I just can’t see how this roof weighs so much it requires 4-6×6′s. Any help would be greatly appreciated.
kenspong answers:
It’s not simply a matter of ‘how much it can hold’ (compressive strength of the wood) it’s a question of column buckling. I depends on the ‘slenderness’ of a column (unbraced length divided by radius of gyration) and the axial load imposed by the roof loads, which can vary from region to region – snow, wind, etc..
If you have 8 foot (or longer) 4X4′s supporting the roof, my gut tells me that it’s probably not strong enough to support the worst-case loads.
My adivce: Bite the bullet, make the inspector happy and replace them with 6X6′s. The thicker columns will probably look a lot better, too.
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