Menu
Forums
New posts
Search forums
Calendar
Monthly
Weekly
Agenda
Archive
What's new
New posts
New media
New media comments
New profile posts
Latest activity
Media
New media
New comments
Search media
Members
Current visitors
New profile posts
Search profile posts
Log in
Register
What's new
Search
Search
Search titles and first posts only
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Install the app
Install
Help Support Hardline Crawlers :
Forums
Rock Crawling Forums
Tech & Fab
4.0L Jeep Auto VS Manual
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Message
<blockquote data-quote="rpf500" data-source="post: 481984" data-attributes="member: 6870"><p>The AW4 transmission was used in 4.0L equipped XJs from 1987 through 2001. It was also rarely used in 2.5L equipped XJs with the automatic transmission option, 1987-1990*. It has 3 regular forward gears and 1 overdrive gear, along with a torque converter containing a lockup clutch. Gear selection is part hydraulic and part electronically controlled via solenoid valves. Shift firmness is controlled by a throttle valve cable which meters fluid pressure into the valve body based on throttle position.</p><p></p><p>Gearshift positions -</p><p>Park - this one's obvious.</p><p>Reverse - obvious.</p><p>Neutral - also obvious</p><p>Drive - in this gearshift position, 1, 2, 3, or Overdrive may be electronically selected. See the table after this section for details. If the electronics are disconnected, this will put the transmission in overdrive.</p><p>3 - in this gearshift position, 1, 2, or 3 may be electronically selected. If the electronics are disconnected, this will put the transmission in 3rd.</p><p>1-2 - in this gearshift position, gears 1 and 2 are available via electronic control. The transmission hydraulics enable engine braking in 1st gear with the gearshift in this position. If the electronics are disconnected, this will put the transmission in 1st.</p><p></p><p>2nd gear is not available without some sort of electronics (stock, a toggle switch in the dash, whatever) powering the solenoids.</p><p></p><p></p><p>Is the part above about 2nd gear correct?</p></blockquote><p></p>
[QUOTE="rpf500, post: 481984, member: 6870"] The AW4 transmission was used in 4.0L equipped XJs from 1987 through 2001. It was also rarely used in 2.5L equipped XJs with the automatic transmission option, 1987-1990*. It has 3 regular forward gears and 1 overdrive gear, along with a torque converter containing a lockup clutch. Gear selection is part hydraulic and part electronically controlled via solenoid valves. Shift firmness is controlled by a throttle valve cable which meters fluid pressure into the valve body based on throttle position. Gearshift positions - Park - this one's obvious. Reverse - obvious. Neutral - also obvious Drive - in this gearshift position, 1, 2, 3, or Overdrive may be electronically selected. See the table after this section for details. If the electronics are disconnected, this will put the transmission in overdrive. 3 - in this gearshift position, 1, 2, or 3 may be electronically selected. If the electronics are disconnected, this will put the transmission in 3rd. 1-2 - in this gearshift position, gears 1 and 2 are available via electronic control. The transmission hydraulics enable engine braking in 1st gear with the gearshift in this position. If the electronics are disconnected, this will put the transmission in 1st. 2nd gear is not available without some sort of electronics (stock, a toggle switch in the dash, whatever) powering the solenoids. Is the part above about 2nd gear correct? [/QUOTE]
Insert quotes…
Verification
Post reply
Latest posts
Pickett State Park/Blackhouse Mountian 1-23-2016
Latest: ridered3
Friday at 3:12 PM
Trail Rides & Competitions
Daves Offroad Supply
Latest: Daves Offroad Supply
Wednesday at 10:52 AM
Vendors
B
For Sale
Artec Back-bone truss for 14 bolt
Latest: Bebop
Tuesday at 7:19 PM
Off Road 4x4 Parts For Sale
P
YouTube of the day
Latest: paradisepwoffrd
Monday at 8:21 AM
General Discussion
Cash LeCroy Illness
Latest: ridered3
May 26, 2024
General Discussion
Forums
Rock Crawling Forums
Tech & Fab
4.0L Jeep Auto VS Manual
Top