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'99 & up 7.3L Power Stroke Engine and Drivetrain FAQ Frequently asked questions in the '99 & up 7.3L Power Stroke Engine and Drivetrain forum.

Thread: Hard/No Start? Check here first. Reply to Thread
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  Topic Review (Newest First)
10-06-2018 02:02 AM
meador123 Thanks a lot for giving everyone such a memorable opportunity to check tips from this website.
04-25-2018 10:37 PM
79jasper

Sent from my SM-G892A using Tapatalk
04-25-2018 05:00 PM
garth66
Quote:
Originally Posted by nlemerise View Post
Here is a pdf I put together of glow plugs/gpr and the troubleshooting of them...hope this helps someone.
Unfortunately I can't include a copy of the defunct link from quoted post because I'm new here. Does anyone have a copy of the GPR Troubleshooting PDF nlemerise put together a decade ago? The link is no longer functional - instead cross links to an iDrive website requiring you to register, then only will back up your own system - it's not a file sharing site.

Thanks!
Garth
11-30-2015 12:46 PM
powerstrokemike
Thx

Thx for sharing your wisdom. Money is tight and we appreciate you sharing your money saving wisdom to those of us that mechanically inclined, and dollar short. This has been a real life saver for me, Thx again.

Powestroke Mike 199 f250sd
02-18-2006 08:19 PM
klhansen
Re: Hard/No Start? Check here first.

I'm going to lock this thread, because it's getting pretty cumbersome.

If you read the info in here and still have a problem, please make a new post, and we'll address your specific problem.

For next season, I'm planning on consolidating the info here in a new, revised FAQ type post.
02-17-2006 10:30 AM
installking
Re: Hard/No Start? Check here first.

thanx guys for the input i did look and it has the one relay in front and the metal box with the fins behind so im assuming i have the module
02-16-2006 04:13 PM
Larry M
Re: Hard/No Start? Check here first.

[ QUOTE ]
[ QUOTE ]
IM HAVING THE GPR PROBLEM AND WAS WONDERING IF ANYONE CAN VERIFY WHAT THE STEALERSHIP JUST TOLD ME WAS ACCURATE....HE SAID MY TRUCK TAKES THE MORE EXPENSIVE SOLID STATE UNIT (03/2000 BUILD DATE) OR IF THE NAPA GPR 110 WILL WORK FOR ME...THANX IN ADVANCE [img]/ubbthreads/images/graemlins/shrug.gif[/img]

[/ QUOTE ]

If you have 2 relays behind the fuel filter, then the GPR 110 or GPR 109 (much cheaper will work).

If you have only 1 relay and an aluminum box with cooling fins on it, then you have a Glow Plug Controller and will need to buy that, if it's truly the controller gone bad.

I think that the Excursions had the GP Controller instead of a GPR.

[/ QUOTE ]

He has a 2000 X just like Jeff did in <font color="red"> THIS THREAD</font>. I think those with the GPC were some Ca vehicles and some X's, but maybe not all. About the only way to tell is to actually look ... heck, we might even have the second confirmed sighting of a GPR "buss bar" in the wild ... [img]/ubbthreads/images/graemlins/grin.gif[/img]

At any rate he might want to read thru that thread [img]/ubbthreads/images/graemlins/smile.gif[/img]

Larry
02-16-2006 03:51 PM
klhansen
Re: Hard/No Start? Check here first.

[ QUOTE ]
IM HAVING THE GPR PROBLEM AND WAS WONDERING IF ANYONE CAN VERIFY WHAT THE STEALERSHIP JUST TOLD ME WAS ACCURATE....HE SAID MY TRUCK TAKES THE MORE EXPENSIVE SOLID STATE UNIT (03/2000 BUILD DATE) OR IF THE NAPA GPR 110 WILL WORK FOR ME...THANX IN ADVANCE [img]/ubbthreads/images/graemlins/shrug.gif[/img]

[/ QUOTE ]

If you have 2 relays behind the fuel filter, then the GPR 110 or GPR 109 (much cheaper will work).

If you have only 1 relay and an aluminum box with cooling fins on it, then you have a Glow Plug Controller and will need to buy that, if it's truly the controller gone bad.

I think that the Excursions had the GP Controller instead of a GPR.
02-16-2006 01:30 PM
installking
Re: Hard/No Start? Check here first.

IM HAVING THE GPR PROBLEM AND WAS WONDERING IF ANYONE CAN VERIFY WHAT THE STEALERSHIP JUST TOLD ME WAS ACCURATE....HE SAID MY TRUCK TAKES THE MORE EXPENSIVE SOLID STATE UNIT (03/2000 BUILD DATE) OR IF THE NAPA GPR 110 WILL WORK FOR ME...THANX IN ADVANCE [img]/ubbthreads/images/graemlins/shrug.gif[/img]
02-14-2006 07:35 AM
Cool_Canuck
Re: Hard/No Start? Check here first.

[ QUOTE ]
Do the glow plugs only function when the motor is being started, or do they play a part on how the motor runs long after its running?

[/ QUOTE ]
They are only a starting aid. Depending on temperatures, they may stay on for up to 2 minutes.
02-14-2006 03:04 AM
cat235d
Re: Hard/No Start? Check here first.

Do the glow plugs only function when the motor is being started, or do they play a part on how the motor runs long after its running?
02-11-2006 12:49 AM
Vindicator
Re: Hard/No Start? Check here first.

[ QUOTE ]
I have a "California" 1999 F-350 with 196,600 miles. I changed injector #3 and installed new Bosch glow plugs on that side while I was there. Following that the SES light came on and I pulled code po1395. I then changed the glow plug controller (Napa GPR 110) (cleaned and lubed all connections), check all wiring and connectors. The SES light and po1395 came up following each time I erased the code.

Yesterday, I pulled the valve cover and checked the ressitance of each of the four glow plugs, valve cover wiring harness, wiring from valve cover harness to controller, and the controller itself. All were within the specs that I found on this site. The SES light came on again with code po1395.

I parked the truck outside and it fired right up this morning (23 degrees F) with no difficulty or smoke.

I must be missing something simple. Thanks in advance for any help you might have.

[/ QUOTE ]

Alpine, our "CA" trucks DO have a Glow Plug Controller, but not the Glow Plug Relay...The Controller looks like a small box with heat fins on top and 2 plugs that plug into it. Its located behind the first relay that you replaced. I'm trying to find a way to test the GPC as well...
02-10-2006 12:20 PM
ALPINESMITH
Re: Hard/No Start? Check here first.

I have a "California" 1999 F-350 with 196,600 miles. I changed injector #3 and installed new Bosch glow plugs on that side while I was there. Following that the SES light came on and I pulled code po1395. I then changed the glow plug controller (Napa GPR 110) (cleaned and lubed all connections), check all wiring and connectors. The SES light and po1395 came up following each time I erased the code.

Yesterday, I pulled the valve cover and checked the ressitance of each of the four glow plugs, valve cover wiring harness, wiring from valve cover harness to controller, and the controller itself. All were within the specs that I found on this site. The SES light came on again with code po1395.

I parked the truck outside and it fired right up this morning (23 degrees F) with no difficulty or smoke.

I must be missing something simple. Thanks in advance for any help you might have.
02-09-2006 04:09 PM
klhansen
Re: Hard/No Start? Check here first.

[ QUOTE ]
What is the part located next to the GPR which looks like it?

[/ QUOTE ]

That would be the Intake Air Heater Relay. Controls the IAH to reduce smoke on extended cold temperature idle.
02-09-2006 11:41 AM
Highlander
Re: Hard/No Start? Check here first.

What is the part located next to the GPR which looks like it?
This thread has more than 15 replies. Click here to review the whole thread.

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