09/29 Q/A Session - Jeep Wrangler and Wrangler Unlimited - Page 10

CCJ · 09-29-2009, 04:50 PM

Quote:

Originally Posted by 2006sport

TJ questions welcomed?

Any reason for the sudden jerk forward without stepping on the gas when turning full lock while goin between 2-5 mph? Doesn't happen all the time...but it happened today. Jeep is a 2006 TJ sport with the 42RLE auto

My TJ also does this. About 60% of the time. Very odd.

JeepEngineers · 09-29-2009, 04:51 PM

Quote:

Originally Posted by ZJones

Any chance of seeing an unlimited model like the LJ? I really liked the two door design with a longer wheel base.

No comments on the future stuff.

But, we like hearing stuff . . .

JeepEngineers · 09-29-2009, 04:51 PM

Quote:

Originally Posted by bunkrdfool

Any chance we can get a add-on to the owners manual about the Jeep wave?

Im tired of driving to work and having 1 out of 5 Jeeps wave. Maybe just a little sheet would be fine.

And thanks for the Q&A!

See you are finding out that you have to be in the know - the secret society!

JeepEngineers · 09-29-2009, 04:52 PM

Quote:

Originally Posted by 2006sport

TJ questions welcomed?

Any reason for the sudden jerk forward without stepping on the gas when turning full lock while goin between 2-5 mph? Doesn't happen all the time...but it happened today. Jeep is a 2006 TJ sport with the 42RLE auto

When a vehicle is at full lock it takes more power to move forward than when the wheels are pointed straight. The engine will need more fuel to keep the it from stalling. The surge you feel is the push of fuel to maintain engine speed under full lock conditions.

JeepEngineers · 09-29-2009, 04:53 PM

Quote:

Originally Posted by waterboarder

I really need an answer to this one (:

I realize you recommend not modifying anything for any reason. CorporateSpeak(tm) understood (:

That said, although while it may not be recommended - if someone WERE to tap into the brake wire "hot side" so that their trailer brake controller would work, and if one found trying to access that wire under the steering wheel too painful and difficult (ask me how I know), where could one find the appropriate wire under the hood? What colour and where is it, and picture would help (: Rumour is that it can be tapped over there, rather than under the steering wheel.

Thanks a bunch!

Do not modify the brake wiring....

We will not help on this one.. sorry.

JeepEngineers · 09-29-2009, 04:53 PM

Quote:

Originally Posted by JWA

No, completely stock. It takes a split second for it to set up once you go to the throttle. I generally have the radio on, so I don't hear it.

Ok...it's a fairly rare occurence, but we have seen a few do this even with the stock intake system. We did issue a TSB for a similar condition on 3.7L, TSB # 09-001-07, you can perform (or have your dealer perform) the same procedure on a 3.8L. Essentially what is happening is that as air passes over the joint/seal in between the throttle body, if there are any voids at all in that joint it creates noise. Essentially the TSB shows you where to judiciously apply RTV in that area to fill in any voids.

FIRE14 · 09-29-2009, 04:53 PM

I have an 02 sahara all of it is in factory form except for the 31x10.50r15 tires. it has had the axle seals replaced by the dealership and front swaybar end links replaced by a local garage tires and wheels are in balance and allinement is good but still have a vibration coming from all four cornners, what do I need to check now

2006_Sport · 09-29-2009, 04:54 PM

Quote:

Originally Posted by JeepEngineers

When a vehicle is at full lock it takes more power to move forward than when the wheels are pointed straight. The engine will need more fuel to keep the it from stalling. The surge you feel is the push of fuel to maintain engine speed under full lock conditions.

Thanks so much! I knew that there was a logical reason for it

**Jones** · 09-29-2009, 04:54 PM

Quote:

Originally Posted by JeepEngineers

No comments on the future stuff.

But, we like hearing stuff . . .

Fair enough.

The only things holding me back from buying a wrangler are - no v8 option (I love the 5.9 v8 in my ZJ and don't think I would be happy with the v6), no long wheel base 2 door option like the LJ.

CCJ · 09-29-2009, 04:54 PM

Quote:

Originally Posted by JeepEngineers

No comments on the future stuff.

But, we like hearing stuff . . .

I'd simply like to add.... V-8. Please. Burnsville off road is doing it with no problems. AEV-conversions is doing it with no problems. I'm ready for DC to start doing it.... w/ warranty of course. It's the only reason I haven't sold my TJ yet. I love the JK's but I'll patiently wait for that V-8 to make that next purchase. To hell with the "economy" & "no-one would buy it" remarks that some members are going to post.

**waterboarder** · 09-29-2009, 04:55 PM

Quote:

Originally Posted by JeepEngineers

Do not modify the brake wiring....

We will not help on this one.. sorry.

So your recommendation then is NOT to use trailer brake controllers?????

JeepEngineers · 09-29-2009, 04:55 PM

Quote:

Originally Posted by xplodn

Has there been any official fixes for rough shifting in the AX-15 with 100K+ miles? 10W-30 or what? I currently am running Redline MT-90 (around 90W) in it but even that is not helping.

No official fixes.. baby it.

Sycros wear out. Let it spool down a bit before shifting into next gear

xplodn · 09-29-2009, 04:56 PM

Quote:

Originally Posted by JeepEngineers

No official fixes.. baby it.

Sycros wear out. Let it spool down a bit before shifting into next gear

fair enough.

BODiSek · 09-29-2009, 04:56 PM

Quote:

Originally Posted by JeepEngineers

Just a few simple questions please do not be offended:

Have the tires been confirmed to be in balance?
Alignment been confirmed in spec?
Have the dealer verify the front axle is in spec for caster?
Has the vehicle been wheeled off road? Potentially bent an axle tube.

Tires have been checked and balanced, alignment done two times. Most recent numbers are caster 4.25, toe 3/16, BUT camber -1 and -3/8 which got me thinking about bent axle as well. However I've been told that camber will have no influence on this issue, and those numbers are pretty common even if out of factory specs. I doubt it would be possible to bend axle with stock tires with only mild off-road (forest service roads and such)?

JeepEngineers · 09-29-2009, 04:57 PM

Quote:

Originally Posted by FIRE14

I have an 02 sahara all of it is in factory form except for the 31x10.50r15 tires. it has had the axle seals replaced by the dealership and front swaybar end links replaced by a local garage tires and wheels are in balance and allinement is good but still have a vibration coming from all four cornners, what do I need to check now

Next I would look at the upper control arm bushings and the steering stabilizer.

09-29-2009, 04:53 PM	#142
FIRE14 Registered User Join Date: Sep 2009 Location: nc Posts: 1 Profile Gallery Classifieds My Jeeps	I have an 02 sahara all of it is in factory form except for the 31x10.50r15 tires. it has had the axle seals replaced by the dealership and front swaybar end links replaced by a local garage tires and wheels are in balance and allinement is good but still have a vibration coming from all four cornners, what do I need to check now