how to test solenoids
#1
Newbie
Thread Starter
Join Date: Oct 2012
Location: Massachusetts
Posts: 28
Likes: 0
Received 2 Likes
on
2 Posts
Year: 1999
Model: Cherokee
Engine: 4.0 i6
how to test solenoids
I was wondering how to test the transmission solenoids for a 99 xj. I dropped the pan and got them out i just need to see if any of the three are bad. I would replace all of them but they run about $170 a piece. If anyone can help i would appreciate it
#2
Member
Join Date: Aug 2012
Location: Atlanta Georgia
Posts: 171
Likes: 0
Received 2 Likes
on
2 Posts
Year: 1997
Model: Cherokee
Engine: 4.0L
Have seen web pages ( you tube ) where folks made up there own test/cleaning system or...
http://www.ebay.com/itm/42RE-44RE-TR...sories&vxp=mtr
http://www.ebay.com/itm/42RE-44RE-TR...sories&vxp=mtr
#3
CF Veteran
Join Date: Apr 2012
Location: Wisconsin
Posts: 5,302
Likes: 0
Received 19 Likes
on
16 Posts
Model: Cherokee
Were you having transmission symptoms?
You can check the coil resistance- 11-13 ohms and make sure they don't feel notchy or sticky when operated by hand. Other than that, the things tend to fail when they heat up, so bench checks are of limited value unless they clearly test bad.
You can check the coil resistance- 11-13 ohms and make sure they don't feel notchy or sticky when operated by hand. Other than that, the things tend to fail when they heat up, so bench checks are of limited value unless they clearly test bad.
#5
CF Veteran
Join Date: Apr 2012
Location: Wisconsin
Posts: 5,302
Likes: 0
Received 19 Likes
on
16 Posts
Model: Cherokee
If it shifts at all, the solenoids are working. Shifting late at high RPM is a control issue. Either the TPS (first choice), NSS or TCU is likely taking an extended lunch break.
Not shifting from 1 to 2 until 3500-4K RPM while in manual control is normal. You have 1 & 3 available in manual.
Not shifting from 1 to 2 until 3500-4K RPM while in manual control is normal. You have 1 & 3 available in manual.
#6
Newbie
Thread Starter
Join Date: Oct 2012
Location: Massachusetts
Posts: 28
Likes: 0
Received 2 Likes
on
2 Posts
Year: 1999
Model: Cherokee
Engine: 4.0 i6
Originally Posted by Radi
If it shifts at all, the solenoids are working. Shifting late at high RPM is a control issue. Either the TPS (first choice), NSS or TCU is likely taking an extended lunch break.
Not shifting from 1 to 2 until 3500-4K RPM while in manual control is normal. You have 1 & 3 available in manual.
Not shifting from 1 to 2 until 3500-4K RPM while in manual control is normal. You have 1 & 3 available in manual.
#7
Member
Join Date: Feb 2011
Location: Oceanside C.A
Posts: 116
Likes: 0
Received 0 Likes
on
0 Posts
Year: 1992 Laredo
Model: Cherokee
Engine: 4.0 inline 6
Honestly I kinda had this problem replaced the tps like 6 times nothing even the computer nothing... Ended being a bad transmission.. got it replaced it had bad soleniodes in it replaced them.. and all is well now.. I would smell the trans fluid to see if it has a burnt smell to it.. of so its prolly the trans going bad... IMO you should replace the soleniodes..
Trending Topics
#8
Senior Member
Join Date: Jan 2012
Location: Indiana
Posts: 635
Likes: 0
Received 2 Likes
on
2 Posts
Year: 1999
Model: Cherokee
Engine: 4.0
do you have a check engine light on also? I ask because my 98 was having issues from 1-2, as well as the CEL was on. Replaced all three solenoids and the problem is definately gone. Follow this link and you will see why i did all three! The price is just too good not to do all of them.
http://www.bulkpart.com/Merchant2/me...e=A340solenoid
http://www.transmissionpartsusa.com/...-0094393aa.htm
I got interested and looked up another one for ya!
My good deed for the day is saving you a ton of money, now I can be an A$$ the rest of the day! haha J/K
http://www.jeepforum.com/forum/f11/a...no-56k-717206/
this is a write up on another forum, just in case you wanted it.
http://www.bulkpart.com/Merchant2/me...e=A340solenoid
http://www.transmissionpartsusa.com/...-0094393aa.htm
I got interested and looked up another one for ya!
My good deed for the day is saving you a ton of money, now I can be an A$$ the rest of the day! haha J/K
http://www.jeepforum.com/forum/f11/a...no-56k-717206/
this is a write up on another forum, just in case you wanted it.
Last edited by Guntar13; 10-09-2012 at 08:49 AM.
#9
Newbie
Thread Starter
Join Date: Oct 2012
Location: Massachusetts
Posts: 28
Likes: 0
Received 2 Likes
on
2 Posts
Year: 1999
Model: Cherokee
Engine: 4.0 i6
Good **** brother i appreciate it. Now its the first solenoid kit for $224? I think that was the one for a 99. Either way i was gonna be paying $170 a piece at napa, and $230 a piece at the jeep dealership! I can't believe something so small and cheap can cost so much!
#11
CF Veteran
Join Date: May 2008
Posts: 3,018
Likes: 0
Received 13 Likes
on
13 Posts
Year: 1988
Model: Cherokee
Engine: AMC242
- Resistance check with an ohmmeter - values should be published. This tests for shorts or opens in the coil.
- Once you've verified resistance, you can apply +12VDC to trigger the solenoid - you should feel a definite "click" when you do so. Be sure your test supply can give you at least +12VDC@2A (most solenoids used work around 1A, but no sense in pushing it.)
If there are two terminals, they're generally not polarisied - but it won't hurt to be sure.
If there is one terminal, that's usually the voltage feed - the ground will be through the case/screw tab that mounts it.
Thread
Thread Starter
Forum
Replies
Last Post
Jeremy Millner
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
10
10-02-2015 02:21 PM
Cherokee_of_Tennessee
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
4
09-30-2015 12:10 PM
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)