Dana 60 builds
03-31-2009, 07:51 PM
#21
JK Super Freak
Join Date: Mar 2008
Location: Springfield, MO
Posts: 1,176
Likes: 0
Received 0 Likes
on
0 Posts
That doesn't make any sense. 
If that were true then when you Re-Gear the speedo would not change since it would always detect axle speed. Changing of Tire diameter would still affect it though.
I'm pretty sure people on here who have re-geared also had to reprogram the ECU to get the speedo accurate again.
Also lookup the guy's who have installed an Atlas, I'm pretty sure they were having speedo issues since it's in the TC.
If that were true then when you Re-Gear the speedo would not change since it would always detect axle speed. Changing of Tire diameter would still affect it though.
I'm pretty sure people on here who have re-geared also had to reprogram the ECU to get the speedo accurate again.
Also lookup the guy's who have installed an Atlas, I'm pretty sure they were having speedo issues since it's in the TC.
Vehicle speed sensor, wrangler
2007 $4.50 $3.46
that is in the "powertrain control" section. Unfortunately, there is not an illustration for that part.
03-31-2009, 08:39 PM
#22
JK Super Freak
Join Date: Dec 2008
Location: Crawlorado
Posts: 1,028
Likes: 0
Received 0 Likes
on
0 Posts
i wonder if those speed sensors only detect if vehicle is turning when the steering wheel is straight or turning. i have driven the jeep with the steering wheel crooked and the jeep gets mad about that.
04-01-2009, 05:31 AM
#23
JK Enthusiast
Join Date: Mar 2007
Location: Southaven, MS
Posts: 305
Likes: 0
Received 0 Likes
on
0 Posts
OK... I did a little bit of searching in the parts catalog online and found that there are parts called speed sensors on each of the wheels, but there is also another part named
Vehicle speed sensor, wrangler
2007 $4.50 $3.46
that is in the "powertrain control" section. Unfortunately, there is not an illustration for that part.
Vehicle speed sensor, wrangler
2007 $4.50 $3.46
that is in the "powertrain control" section. Unfortunately, there is not an illustration for that part.
i wonder if those speed sensors only detect if vehicle is turning when the steering wheel is straight or turning. i have driven the jeep with the steering wheel crooked and the jeep gets mad about that.
04-01-2009, 11:29 AM
#24
JK Junkie
Join Date: Mar 2007
Location: Kennesaw, GA
Posts: 2,710
Likes: 0
Received 0 Likes
on
0 Posts
04-02-2009, 08:08 PM
#25
JK Newbie
Join Date: Mar 2009
Location: vancouver
Posts: 71
Likes: 0
Received 0 Likes
on
0 Posts
Just my two cents but what if you unplug all the wheel sensors and take it for a boot around see if the speedo will work. The jeep will prob get pissed to but you will learn alot.
Whos willing to try?
Whos willing to try?
04-04-2009, 03:59 PM
#27
JK Enthusiast
Join Date: Mar 2007
Location: Southaven, MS
Posts: 305
Likes: 0
Received 0 Likes
on
0 Posts
Ok well disregard all my previous posts. 
I read on another forum that there is in fact NO SPEEDO sensor in the TC. They ARE located in the wheels.
This is directly from a person who installed an Atlas II, the problem when installing an Atlas is the 4wd sensor and not the Speedo like I thought.
The 4wd sensor is important because it tells the ESP system how to behave, there was a work around for that issue also though.
I read on another forum that there is in fact NO SPEEDO sensor in the TC. They ARE located in the wheels.
This is directly from a person who installed an Atlas II, the problem when installing an Atlas is the 4wd sensor and not the Speedo like I thought.
The 4wd sensor is important because it tells the ESP system how to behave, there was a work around for that issue also though.
04-04-2009, 06:59 PM
#28
JK Super Freak
Join Date: Mar 2008
Location: Springfield, MO
Posts: 1,176
Likes: 0
Received 0 Likes
on
0 Posts
Something still doesn't quite add up with the sensors on the wheels, though... If they were the only measuring sensors, you could swap your gears and the speedometer would stay accurate. But it doesn't... at least, I don't think it does. If it didn't, why would you need to adjust the gear ratio with a programmer?
There almost has to be something else upstream, doesn't there?
There almost has to be something else upstream, doesn't there?
04-04-2009, 07:58 PM
#29
JK Freak
Thread Starter
Join Date: Feb 2008
Location: cleveland,
Posts: 501
Likes: 0
Received 0 Likes
on
0 Posts
the wheel sensors are only for the ABS. They work with the Tone rings. If you lose the tone rings and the wheel sensors you will not have ABS/ESP. Your jeep will drive normally without these functions. All the information is on this forum.
04-05-2009, 05:36 AM
#30
JK Newbie
Join Date: Jun 2007
Posts: 82
Likes: 0
Received 0 Likes
on
0 Posts
are you sure about this, i would like to keep my stock engine instead of going with a small block.