FlyingLow

My friend has an 05 Tacoma that he finds pulls to the left on the highway in 4x4, it sounds to me like one side isn't getting drive in the front? I haven't been into one of these things before and don't have a manual so don't know how it all works. I'm used to solid front axles with manual hubs. I also don't have a shop to look at it in here, we are at work so I'll be laying in the dirt. Just looking for some suggestions, gonna take a look tomorrow.

ThatGuy1295

I got the perfect fix. Tell him to take it out of 4wd on the highway.

FlyingLow

Wow, thanks tips. Is that how to pad your posts?

HighLux

Shouldnt be in 4wd high at highway speeds.

FlyingLow

Not sure where you guys live but he lives in the interior of BC Canada and deals with hard packed snow and ice on the highway.

HighLux

We dont get alot of snow here....few inches here and there.
I guess if you are in Canada...snow is the norm.

You guys roll down hard packed snow at 60-70mph?

I guess its what you are used to.

I personally dont roll mine in 4wd over 60 for great lengths of time.
I suppose you can...but I cant imagine wanting to go that fast down the highway in snow anyways....what if you gotta stop? lol

rworegon

Could it be a broken CV axle on one side not giving power in 4WD? Does it happen at all speeds? Does it pull when not in 4WD?

My 95.5 Tacoma has a warning not to exceed 80km/h (50mph) in 4 Hi. I have no pulling at 45-50 mph in 4 Hi. Suppose it's may be hard on the front diff to go faster.

HighLux

A broken cv would make a racket in 4wd for sure. all flopping around and banging stuff. If a cv were broken...4wd wouldnt even work...unless he has a locker.

How much of a pull is it? in 4wd there is a certain amount of "torque steer"

You know...like when you dump the clutch on a front wheel drive car and it pulls the wheel out of your hand one way or the other.

rworegon

One would think. But, if the shaft sheared at the splines on the diff side I wonder how much noise it makes?

HighLux

touche' That could be pretty quiet. I love the "collective effect" of bouncing theories off each other.

FlyingLow

I'm not sure what speed he's going, I'm sure he's not going 70 mph and driving in accordance with road conditions. I have never said anything about going at highway speed. What I would like to know is what engages the front axle shafts (forward of the t-case thanks) or do they spin all the time. Again, I have not torn into one of these IFS front ends so its new to me. I am definately thinking of the shafts and maybe a torn boot causing the cv to be all worn out providing resistance and putting more power to the other wheel.

Toyota~Boy

iTrader: (2)

He may have a slight case of bump steer.... My 87 is still IFS. When I goose the throttle both tires intend to turn in/toe in resulting in my truck pulling ither left or right. You can visually watch mine turn inward. You may wanna check that. I'm unsure of the proper fix to it tho. I've replaced all of my steering components and mine still does it. Only thing left is a arm bushings. Ima SAS anyways so I'm not concerned with mine.

rworegon

I was interpreting "pulls to the left on the highway in 4x4" to mean highway speed...in my mind something greater than, say, 60 km/h.
Post up what you find.

HighLux

Put it up on jackstands in the front. Put it in 4wd hi. Spin one wheel. The other wheel should turn the opposite direction. This will confirm if both wheels are locking out as they should. That will eliminate you thinking one side is not engaging.

Also...tire pressure same on both tires?

FlyingLow

I was thinking tire pressure too, I don't have a decent jack here otherwise that's what I'd do first. I'll climb under and look in 2 wheel and 4 wheel.

I think he said on the highway becuase he goes up a mountain pass every week. Its the highway in the stupid "highway thru Hell" show.

ThatGuy1295

Most likely the only possibility here. I dont think theres anything wrong with his truck.

Hey.. He has an 05, its an auto diff. Turn your 4wd off once your up to speed like your supposed to. Thats why they invented it.

FlyingLow

well damn it, first thing I checked was tire pressure and the front left was 26 psi, everything else was 34. He just had a flat fixed on that tire, either they did a crap job or didn't put enough air in when they finished (again, crap job). I topped up the tire, had a look over everything else, resoldered resistor 510 in the overhead display and tried to fix his a/c light flashing with no luck. He hasn't given me any feed back yet, only did a 5 minute drive back to the hotel which didn't really go over 50 kmph and only in 2 wd. Time will tell but I think the 25% difference in tire pressure was probably enough. Not sure why this didn't show up more in 2 wd, maybe he was more attentive in 4 wd or maybe the tire acted differently with power to it. Anyway thanks for the replies.

Patrick Ward

This thread is meant to be helpful what's not needed is smart ass remarks from dimwitted assholes so get off the page if you not able to respond in an appropriate manner.
If the dam truck is pulling to the left even at low speeds its not right so when he says he's driving on HWY it shouldn't pull so hard to left either not a single 4x4 Iven ever road in 4x4 high or not has ever had that issue so the guy is just looking for advice on what might be the problem and your smartass response is don't drive in 4high what an asshole I hope you look for help sometime and all you get is sarcasm ˟˟˟˟head!
and you can drive your 4wheeler on the hwy in 4 wheel high as long as not exceeding recommendations by manufacturer
The facts about 4-High: 4-High allows your vehicle to drive at fast speeds (manufacturers often recommend no faster than 55mph) while power is sent to all four wheels providing your car with better traction than 2-wheel drive. Depending on the application, most drivers will use 4-High more regularly than 4-Low.
so there jack ass

Patrick Ward

The facts about 4-High: 4-High allows your vehicle to drive at fast speeds (manufacturers often recommend no faster than 55mph) while power is sent to all four wheels providing your car with better traction than 2-wheel drive. Depending on the application, most drivers will use 4-High more regularly than 4-Low.

Patrick Ward

The facts- 4hgih allows your vehicle to drive at fast speeds manufacturers recommend no faster than 55 mph