4X4 High/Low prob - HELP!
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4X4 High/Low prob - HELP!
I have a 98 ford explorer sport with 106k miles - i bought this car about 4-6 months ago - i tryed 4x4 low and hight maby 4-5 times - not long trip just around the block - ok here is my prob - when i put the car in 4x4 high or low and make a turn i ther is this banging under the car or in front i really dont know it drives good straight - i took it to mechanic he dosent know what is it - but he said it should not be like that - but he "THINKS" its the Transfer Case and the bang is the something about the chain to slip -- then he told me to wait until it gets worst and then he can see whats wrong -- well i dont want to drive until my car stops on the f***ing highway -- i will take it to diff guy and see what he willl say-- and how much can a Transfer Case go for ????
thanks
thanks
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Joined: Apr 2002
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From: CT
NEVER drive on pavement in 4x4 (unless there is snow on the ground). You could have a worn front CV joint that is binding when you are turning and the extra stress from the pave (thats why you don't drive on pave in 4x4) is making the loud banging.
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Second that big time. I have a 98 XLT 4x4. You have a rotary switch that says Auto / 4hi / 4lo. Since it's automatically in 4wd, why not put it in 4hi? Is that what you were thinking?
Well, there is a difference between full time systems, auto systems and old styles. Others can explain better, but the auto system in the Explorer is a cross between the two. In auto, you run in rear wd unless you spin the rear wheels. The auto system will engage the front axle until the spin or speed differential between front and rear stops, no longer. (just a little like full time awd here) When you put it in 4hi or 4lo, you lock the front and rear axles together and things start to wind up as there is always a speed differential between front and real, amplified greatly when turning. Thus, your going to get all kinds of noise under the vehicle on dry pavement in 4hi or lo.
This is where it is just like old manual systems.
I remember a salesman showing how the 4wd worked--out on a dry asphalt lot. Clink clink clunk squeal hop chirp.
Well, there is a difference between full time systems, auto systems and old styles. Others can explain better, but the auto system in the Explorer is a cross between the two. In auto, you run in rear wd unless you spin the rear wheels. The auto system will engage the front axle until the spin or speed differential between front and rear stops, no longer. (just a little like full time awd here) When you put it in 4hi or 4lo, you lock the front and rear axles together and things start to wind up as there is always a speed differential between front and real, amplified greatly when turning. Thus, your going to get all kinds of noise under the vehicle on dry pavement in 4hi or lo.
This is where it is just like old manual systems.
I remember a salesman showing how the 4wd worked--out on a dry asphalt lot. Clink clink clunk squeal hop chirp.
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From: CT
highly unlikely it's the tcase, if the CVs have never been changed they are most likely the culprit. And being that you were on pave that didn't help the situation. Buying anything used without pulling it apart and inspecting bearings/chain/pump for wear is a coin toss on wether you got a better condition one that you have or you bought a turd.
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