View Full Version : Front Wheel Hop When Turning
YAKFSHR
04-09-2003, 03:04 AM
i've expereinced this in 4 wd but not in 2 wheel. don't think it's normal. whats causing it? i really hardly noticable and only sparatically.
billyrb
04-09-2003, 03:13 AM
Are you sure the Transfer case has disengaged completely?
Stuka
04-09-2003, 03:18 AM
If you experiance this in 4wd but not 2wd it is perfectly normal. When you turn, the front tires go along a longer path thent he rear. In 4wd the front and rear are locked together, so they have to spint he same speed. And since turning causes the front to go further, it makes them skip,or "hop" as you put it. This is why the user manual says NOT to use 4wd on hard dry surfaces. Use only on the street if its snowing or something.
AWD or 4wd full time allows for slippage between the front and back as they are not locked together, this is why those can be used on the street. But theya re not 4wd unless the t-case can be locked.
The Anti-Chrysler
04-09-2003, 03:20 AM
Your front wheels should hop when turning in 4wd!!!! It means the front axle is engaged!! On hard surfaces, mind you.
When the front is engaged, the differential action is cancelled out because the rear is spinning at a different speed, and the front wheels are locked to them. They're trying to turn at a different speed than the surface is moving, so they hop. This is normal on "real" 4wd vehicles.
Now if you said, or meant to say, it was hopping in 2wd, then you have a problem.
Blackjack
04-09-2003, 03:21 AM
Originally posted by Stuka:
If you experiance this in 4wd but not 2wd it is perfectly normal. When you turn, the front tires go along a longer path thent he rear. In 4wd the front and rear are locked together, so they have to spint he same speed. And since turning causes the front to go further, it makes them skip,or "hop" as you put it. This is why the user manual says NOT to use 4wd on hard dry surfaces. Use only on the street if its snowing or something.
AWD or 4wd full time allows for slippage between the front and back as they are not locked together, this is why those can be used on the street. But theya re not 4wd unless the t-case can be locked.'zacly
FSJ Thing
04-09-2003, 03:58 AM
You have a 229 Tcase right? If so, I'd say it should do that in 4lo, but in 4hi, the viscous coupler should keep that from happening. If you have wheel hop in 4hi, then either you viscous coupler isn't so viscous anymore, or your front differential is jammed stuck and acting like a spool!
ironhead
04-09-2003, 04:30 AM
Originally posted by Stuka:
But theya re not 4wd unless the t-case can be locked.??? Define locked, i.e. Qtrac...
billyrb
04-09-2003, 05:35 AM
I think Yak is saying that this is happening in 2wd.......
YAKFSHR
04-09-2003, 05:55 AM
tried to post and got a "flood protection" thingy from the administrator. whats that. anyhow, yes in 2wd it happens, not all the time and not very much.
Stuka
04-09-2003, 07:14 AM
Originally posted by ironhead:
</font><blockquote>quote:</font><hr />Originally posted by Stuka:
But theya re not 4wd unless the t-case can be locked.??? Define locked, i.e. Qtrac...</font>[/QUOTE]In AWD there is slippage betweent he front and rear, like a standard QT. To make it 4wd the QT has to be put into E-Drive. It is then actual 4wd.
FSJ Thing
04-09-2003, 07:37 AM
Your front axle is locked! If it's happening sporatically and in 2wd, then your axleshafts are stuck together. I would call it an alignment problem, but then it would happen constantly. it could be a broken knuckle, but I think you would have found that by now if that was the problem(steering assembly only turns one tire, the other one would just wander along). jack up the front end and try turning one wheel and see what happens to the other. I've seen a similar situation in a rearend on an old Chevy. One spider gear shattered and the peices would intermittantly jam the other spider gear(GM12 bolt). On second thought, you may want to drain the pumkin to check the fluid and while it's empty, take the cover off and look at the guts.
RustyJeep
04-09-2003, 08:14 AM
Check your front axle joints. Sometimes they can start to sieze up and bind, causing the problem you describe. This would be the only thing I can think of, becuase otherwise an NP229 equipped rig won't do that when in 4wd or 2wd. If you see a sort of rust-dust coming out of the cups or around there, they need to be replaced.
[ April 09, 2003, 02:41 PM: Message edited by: RustyJeep ]
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