Please help, 95 YJ wont start - Page 2 - JeepForum.com
Search  
Sign Up   Today's Posts
User: Pass: Remember?
Advertise Here
Jeep Home Jeep Forum Jeep Classifieds Jeep Registry JeepSpace Jeep Reviews Jeep Gallery Jeep Clubs Jeep Groups Jeep Videos Jeep Events Jeep Articles
Go Back JeepForum.com > General Technical Discussions > Engines & Drivetrain > Please help, 95 YJ wont start

ROCK BOTTOM prices on LIFT KITS at Rockridge4wd!! WANT TO Alloy usa heavy duty ball joint kitsWe have FLASHLIGHTS! Great for your Emergency bag!

Reply
Unread 04-22-2014, 06:04 PM   #16
laybackman
Bikini Bridge Inspector
 
laybackman's Avatar
1995 YJ Wrangler 
 
Join Date: Dec 2002
Location: Massachusetts
Posts: 6,282
Questions:

Does this engine turn over?

The fuel pump does not run. Did you check the fuse #5 in the fuse block?



__________________
"Taking care of our veterans is a cost of war. If you can spend six trillion dollars sending people to war, you can spend a few billion dollars taking care of them when they come home"
Sen. Bernie Sanders (I-Vt.)

If what doesn't kill you, makes you stronger, I should be able to bench press a Grand Cherokee by now!
laybackman is online now   Reply With Quote Quick reply to this message
Unread 04-22-2014, 06:44 PM   #17
ayj4u2c
Registered User
 
Join Date: Jan 2014
Posts: 26
The engine does turn over. All fuses under the dash are good. Except there is no power to the one labeled ACC LPS. Which would be #10 on your diagram
ayj4u2c is offline   Reply With Quote Quick reply to this message
Unread 04-22-2014, 07:13 PM   #18
laybackman
Bikini Bridge Inspector
 
laybackman's Avatar
1995 YJ Wrangler 
 
Join Date: Dec 2002
Location: Massachusetts
Posts: 6,282
Quote:
Originally Posted by ayj4u2c View Post
The engine does turn over. All fuses under the dash are good. Except there is no power to the one labeled ACC LPS. Which would be #10 on your diagram
Fuse box list...forgot to post it!


Let me get back to you in a minute or three. Do you have a multimeter?
__________________
"Taking care of our veterans is a cost of war. If you can spend six trillion dollars sending people to war, you can spend a few billion dollars taking care of them when they come home"
Sen. Bernie Sanders (I-Vt.)

If what doesn't kill you, makes you stronger, I should be able to bench press a Grand Cherokee by now!
laybackman is online now   Reply With Quote Quick reply to this message
Unread 04-22-2014, 07:20 PM   #19
laybackman
Bikini Bridge Inspector
 
laybackman's Avatar
1995 YJ Wrangler 
 
Join Date: Dec 2002
Location: Massachusetts
Posts: 6,282
If the starter does not make a sound then let us think about the starter circuit.
I'm freaking losing it. You need to check fuse #4 in the PDC under the hood.

.
FORGOT THIS!!!!


If that fuse is NG you get NADA from the ignition switch. Pull the fuse and check it with a multimeter unless it is obvious that it is blown.
__________________
"Taking care of our veterans is a cost of war. If you can spend six trillion dollars sending people to war, you can spend a few billion dollars taking care of them when they come home"
Sen. Bernie Sanders (I-Vt.)

If what doesn't kill you, makes you stronger, I should be able to bench press a Grand Cherokee by now!
laybackman is online now   Reply With Quote Quick reply to this message
Unread 04-22-2014, 07:37 PM   #20
ayj4u2c
Registered User
 
Join Date: Jan 2014
Posts: 26
Fuse #4 in PDC just checked and it is good!
ayj4u2c is offline   Reply With Quote Quick reply to this message
Unread 04-22-2014, 07:44 PM   #21
laybackman
Bikini Bridge Inspector
 
laybackman's Avatar
1995 YJ Wrangler 
 
Join Date: Dec 2002
Location: Massachusetts
Posts: 6,282
Here is some more information. It is part of a thing I have been working on. I gathered much of this from a FSM and then tried to turn it into English.....sort of.

IGNITION SWITCH
Circuit A1 from fuse 4 in the POWER DISTRIBUTION C ENTER (PDC) supplies battery voltage to the ignition switch. Depending upon position, the ignition switch powers circuits A21, A22, A31, & A41.

START POSITION
In the START position, the ignition switch connects circuit A1 to A41.
• Circuit A41 connects to the coil side of the starter motor relay.
• The other (coil) side of this relay is a ground supplied by the NSS switch in the automatic transmission. For a standard shift, a ground wire on the dipstick tube hold down bolt supplies that needed ground.
• One the other side of this relay is the power from the 40 AMP fuse in the PDC that when A1 connects to A41 the relay closes, IF it has ground. Then battery voltage goes to the starter motor solenoid. That is the power for your starter motor solenoid. The start itself should always have power from the battery + battery cable.
START OR RUN POSITION
In the Start or RUN position the ignitions switch also connects circuit A1 with circuit A21.
• The A21 circuit connects to fuses 5 & 9 in the fuse block.
• Fuse 9 powers circuit G5.
• Fuse 5 powers circuit G50 which supplies power to the coil side of the Automatic Shut Down (ASD) relay.
• Circuit G5 powers the buzzer module.
• Circuit G5 also splices to power the daytime running lamps module if it is a Canadian model, the AC compressor clutch relay, the heated rear window relay, and the gauges and indicator lamps in the instrument cluster.
__________________
"Taking care of our veterans is a cost of war. If you can spend six trillion dollars sending people to war, you can spend a few billion dollars taking care of them when they come home"
Sen. Bernie Sanders (I-Vt.)

If what doesn't kill you, makes you stronger, I should be able to bench press a Grand Cherokee by now!
laybackman is online now   Reply With Quote Quick reply to this message
Unread 04-22-2014, 07:49 PM   #22
laybackman
Bikini Bridge Inspector
 
laybackman's Avatar
1995 YJ Wrangler 
 
Join Date: Dec 2002
Location: Massachusetts
Posts: 6,282
If I didn't mention this already. Turn the ignition switch to the ON position. Pull the starter relay in the PDC. Jump slots 30 to slot 87 with a hunk of wire. Does it start?
__________________
"Taking care of our veterans is a cost of war. If you can spend six trillion dollars sending people to war, you can spend a few billion dollars taking care of them when they come home"
Sen. Bernie Sanders (I-Vt.)

If what doesn't kill you, makes you stronger, I should be able to bench press a Grand Cherokee by now!
laybackman is online now   Reply With Quote Quick reply to this message
Unread 04-22-2014, 07:53 PM   #23
laybackman
Bikini Bridge Inspector
 
laybackman's Avatar
1995 YJ Wrangler 
 
Join Date: Dec 2002
Location: Massachusetts
Posts: 6,282
I edited post #19
__________________
"Taking care of our veterans is a cost of war. If you can spend six trillion dollars sending people to war, you can spend a few billion dollars taking care of them when they come home"
Sen. Bernie Sanders (I-Vt.)

If what doesn't kill you, makes you stronger, I should be able to bench press a Grand Cherokee by now!
laybackman is online now   Reply With Quote Quick reply to this message
Unread 04-22-2014, 07:56 PM   #24
ayj4u2c
Registered User
 
Join Date: Jan 2014
Posts: 26
Jumping the wire from 30 to 87 does not start it. I have a new solenoid for the starter coming tomorrow because NAPA told me it was bad when they tested it. I'm nt so much worried about it not starting as much as I am about why my fuel pump no longer has power going to it.
ayj4u2c is offline   Reply With Quote Quick reply to this message
Unread 04-22-2014, 07:58 PM   #25
ayj4u2c
Registered User
 
Join Date: Jan 2014
Posts: 26
And Thank you so much for all your help, your knowledge is great and are a good teacher. I've learned a lot already.
ayj4u2c is offline   Reply With Quote Quick reply to this message
Unread 04-22-2014, 08:10 PM   #26
laybackman
Bikini Bridge Inspector
 
laybackman's Avatar
1995 YJ Wrangler 
 
Join Date: Dec 2002
Location: Massachusetts
Posts: 6,282
One more thing. Check fuse #5 in the fuse box. It is for the ASD relay. If the ASD relay gets no power neither does the fuel pump relay.
__________________
"Taking care of our veterans is a cost of war. If you can spend six trillion dollars sending people to war, you can spend a few billion dollars taking care of them when they come home"
Sen. Bernie Sanders (I-Vt.)

If what doesn't kill you, makes you stronger, I should be able to bench press a Grand Cherokee by now!
laybackman is online now   Reply With Quote Quick reply to this message
Unread 04-22-2014, 08:22 PM   #27
ayj4u2c
Registered User
 
Join Date: Jan 2014
Posts: 26
Fuse #5 checks out ok
ayj4u2c is offline   Reply With Quote Quick reply to this message
Unread 04-22-2014, 08:34 PM   #28
laybackman
Bikini Bridge Inspector
 
laybackman's Avatar
1995 YJ Wrangler 
 
Join Date: Dec 2002
Location: Massachusetts
Posts: 6,282
Quote:
Originally Posted by ayj4u2c View Post
Jumping the wire from 30 to 87 does not start it. I have a new solenoid for the starter coming tomorrow because NAPA told me it was bad when they tested it. I'm nt so much worried about it not starting as much as I am about why my fuel pump no longer has power going to it.
Maybe it is the starter solenoid. You have jumped power from the starter motor lug to the starter solenoid and got no response. If there is good voltage t the starter motor lug then the solenoid is the most likely culprit.

Stick in in and let me know how you make out.
__________________
"Taking care of our veterans is a cost of war. If you can spend six trillion dollars sending people to war, you can spend a few billion dollars taking care of them when they come home"
Sen. Bernie Sanders (I-Vt.)

If what doesn't kill you, makes you stronger, I should be able to bench press a Grand Cherokee by now!
laybackman is online now   Reply With Quote Quick reply to this message
Unread 04-22-2014, 08:46 PM   #29
ayj4u2c
Registered User
 
Join Date: Jan 2014
Posts: 26
Will do.
ayj4u2c is offline   Reply With Quote Quick reply to this message
Unread 04-24-2014, 01:25 PM   #30
ayj4u2c
Registered User
 
Join Date: Jan 2014
Posts: 26
So I haven't gotten the solenoid yet, but I've got to thinking about what I did to the jeep in between the time it started and then didn't start. Is it possible I fried my PCM by doing a bunch of welding on the jeep without disconnecting the battery first?
ayj4u2c is offline   Reply With Quote Quick reply to this message
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the JeepForum.com forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.
Note: All free e-mails have been banned due to mis-use. (Yahoo, Gmail, Hotmail, etc.)
Don't have a non-free e-mail address? Click here for a solution: Manual Account Creation
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.


Thread Tools






Jeep, Wrangler, Cherokee, Grand Cherokee, and other models are copyrighted and trademarked to Jeep/Chrysler Corporation. JeepForum.com is not in any way associated with Jeep or the Chrysler Corp.