P1395 code causes? - Ford Powerstroke Diesel Forum
What is This? Everything you wanted to know about the TECH Exchange

 
LinkBack Thread Tools Display Modes
post #1 of 3 Old 06-01-2016, 09:45 AM Thread Starter
Powerstroke.org Rookie
 
Join Date: May 2016
Location: Central Point, OR
Posts: 2
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Question P1395 code causes?

I have a 1999 F250 with 7.3L. Love this truck, but, the SES light continues to come on after reset. The truck starts and runs just fine, but I would like to resolve this before it becomes a problem.
Any ideas on where to start without removing valve covers?
Thanks in advance,
LarenC
LarenC is offline  
Sponsored Links
Advertisement
 
post #2 of 3 Old 06-06-2016, 08:20 AM
Stalk The Prey


 
Join Date: Jun 2015
Location: Southern Maryland
Posts: 34
Thanks: 2
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 2 Post(s)
Feedback Score: 0 reviews
P1395 deals with your glow plugs. You should check your GPR first, then your glow plugs.

Make sure the engine is cold, so that the PCM will tell the GPR to turn on. If the engine is hot, you wonít have as much time to check. (if oil temp is above 130F, it won't turn on at all)
∑ Locate the GPR Ė Its behind the fuel filter on top of the engine, a little bit toward the passenger side of the valley. There may be two relays there. If so, the rear one is the GPR. It will have two fairly large wires (yellow and brown) connected to one of the large posts.
∑ With your multitmeter set to DC volts, and 15 V range (if not autoranging), clip the positive (red) lead to the output terminal (with yellow and brown wires connected), and the negative (black) lead to a good ground point (like the battery ground terminal or someplace metal directly on the engine block.)
∑ Turn the key to ON (do not start)
∑ If your GPR is good, it should click, and youíll see 11 volts or so on your meter, then, depending on temperature, it will click off up to 2 minutes later. You should do this a couple of times to make sure it consistently makes the connection.
∑ If you donít get voltage with this test, confirm by retesting as follows.
∑ Remove the two small wires from the smaller two of the four GPR terminals.
∑ With jumper wires, apply voltage from the battery across the two small terminals. If your voltmeter now reads voltage on the output terminal, your GPR is OK, and your problem is in the PCM circuit that tells the GPR to activate.

Check Glow Plugs:

∑ Remove the electrical connector on the inboard side of valve cover at the gasket. Press down on the top of the connector latch and pry gently with a screwdriver. Disconnecting VC harness connector.
∑ There will be 9 pins on the valve cover gasket where you removed the connector. The two pins furthest forward and the two pins furthest back are for your glow plugs.
∑ With your multimeter set to resistance (ohms) and low range (single digits) if not autoranging, clip the negative (black) lead to a good ground point.
∑ Probe each of the 4 outer pins individually with the positive (red) lead, noting the resistance. Good glow plugs will have a resistance between 0.6 and 2 ohms. If you get infinite resistance on any glow plug, that one is either bad or the connector under the valve cover has come loose.

Original credit for this Hard/No Start? Check here first. - Diesel Forum - TheDieselStop.com
Jay Meyer is offline  
post #3 of 3 Old 06-07-2016, 06:04 PM Thread Starter
Powerstroke.org Rookie
 
Join Date: May 2016
Location: Central Point, OR
Posts: 2
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Quote:
Originally Posted by Jay Meyer View Post
P1395 deals with your glow plugs. You should check your GPR first, then your glow plugs.

Make sure the engine is cold, so that the PCM will tell the GPR to turn on. If the engine is hot, you wonít have as much time to check. (if oil temp is above 130F, it won't turn on at all)
∑ Locate the GPR Ė Its behind the fuel filter on top of the engine, a little bit toward the passenger side of the valley. There may be two relays there. If so, the rear one is the GPR. It will have two fairly large wires (yellow and brown) connected to one of the large posts.
∑ With your multitmeter set to DC volts, and 15 V range (if not autoranging), clip the positive (red) lead to the output terminal (with yellow and brown wires connected), and the negative (black) lead to a good ground point (like the battery ground terminal or someplace metal directly on the engine block.)
∑ Turn the key to ON (do not start)
∑ If your GPR is good, it should click, and youíll see 11 volts or so on your meter, then, depending on temperature, it will click off up to 2 minutes later. You should do this a couple of times to make sure it consistently makes the connection.
∑ If you donít get voltage with this test, confirm by retesting as follows.
∑ Remove the two small wires from the smaller two of the four GPR terminals.
∑ With jumper wires, apply voltage from the battery across the two small terminals. If your voltmeter now reads voltage on the output terminal, your GPR is OK, and your problem is in the PCM circuit that tells the GPR to activate.

Check Glow Plugs:

∑ Remove the electrical connector on the inboard side of valve cover at the gasket. Press down on the top of the connector latch and pry gently with a screwdriver. Disconnecting VC harness connector.
∑ There will be 9 pins on the valve cover gasket where you removed the connector. The two pins furthest forward and the two pins furthest back are for your glow plugs.
∑ With your multimeter set to resistance (ohms) and low range (single digits) if not autoranging, clip the negative (black) lead to a good ground point.
∑ Probe each of the 4 outer pins individually with the positive (red) lead, noting the resistance. Good glow plugs will have a resistance between 0.6 and 2 ohms. If you get infinite resistance on any glow plug, that one is either bad or the connector under the valve cover has come loose.

Original credit for this Hard/No Start? Check here first. - Diesel Forum - TheDieselStop.com
Thank you, sir. I will work on it this weekend.
Laren
LarenC is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Ford Powerstroke Diesel Forum 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 email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome