Notices
1999 - 2003 7.3L Power Stroke Diesel  
Sponsored by:
Sponsored by: DP Tuner

Hard start

Thread Tools
 
Search this Thread
 
Old Oct 15, 2012 | 04:14 PM
  #1  
2000F250guy's Avatar
2000F250guy
Thread Starter
|
Junior User
Joined: Aug 2011
Posts: 99
Likes: 0
Hard start

with the tempture droping id like to get this problem fixed its way over due.
The tempture is about 50-60 degreese i turn the key to let the glow plugs warm up and i just get some smoke, I turn the key back and forth a few times to let it warm up longer but still nothing.
i hop out bypass the glow plug Solenoid with a screwdriver and she fires right up.
I dont have this problem with it pluged in.
The Solenoid was replaced about 9 months ago.

Thanks for any information
 
Reply
Old Oct 15, 2012 | 06:38 PM
  #2  
carltonwebb's Avatar
carltonwebb
Cargo Master
15 Year Member
Photogenic
Joined: Oct 2010
Posts: 2,089
Likes: 16
Solenoids are notorious for going out. Take a volt meter and see if its actually working with the key on. Sounds like its dead.
 
Reply
Old Oct 15, 2012 | 08:32 PM
  #3  
1fixitman's Avatar
1fixitman
Laughing Gas
Joined: Aug 2012
Posts: 915
Likes: 3
From: Palatka, FL
Go to the link in my signature and order that relay. I had to fabricate a piece of metal and bend it 90 degrees for a bracket to mount it to but it is rated at 200 amps and continuous duty instead of intermittent duty which means a larger contact surface area and less likely to go bad.
I think I paid 69$ for two of them shipped. I am keeping one on the shelf because I always like to keep a spare. The item price is 28$ but you have shipping also.
Dwayne
 

Last edited by 1fixitman; Oct 15, 2012 at 08:33 PM. Reason: More info
Reply
Old Oct 15, 2012 | 08:36 PM
  #4  
2000F250guy's Avatar
2000F250guy
Thread Starter
|
Junior User
Joined: Aug 2011
Posts: 99
Likes: 0
I went to test it but because the engine was still warm it did not read. i will wait till the Am to test it again.

This is the same thing that happened last time when someone told me it was the Solenoid. Can i test a sensor that tells the engine is cold?
 
Reply
Old Oct 15, 2012 | 09:03 PM
  #5  
1fixitman's Avatar
1fixitman
Laughing Gas
Joined: Aug 2012
Posts: 915
Likes: 3
From: Palatka, FL
You can read Engine Oil Temp or Engine Coolant Temp with AE if you have it.
 
Reply
Old Oct 15, 2012 | 09:05 PM
  #6  
2000F250guy's Avatar
2000F250guy
Thread Starter
|
Junior User
Joined: Aug 2011
Posts: 99
Likes: 0
what sensor tells the computer its cold and to kick on the GP for a bit?
 
Reply
Old Oct 15, 2012 | 09:19 PM
  #7  
Poolguy601's Avatar
Poolguy601
Senior User
Joined: Sep 2011
Posts: 203
Likes: 1
From: Delaware
Amazon.com: White Rodgers 124-105111 Solenoid, SPNO, 12 VDC Isolated Coil, 13.2 Ohms Coil Resistance, Continuous Duty, Normally Open Continuous Contact Rating 100 Amps, Inrush 400 Amps: Electronics
We use these on our school buses. They control all the heaters and they are on all day. I also use them for the intake heaters on the Cats and Cummins and glow plugs on the T444E engines.
We get them from the local Blue Bird dealer but Amazon is faster.
 
Reply
Old Oct 15, 2012 | 09:30 PM
  #8  
BigAlsPSD's Avatar
BigAlsPSD
Post Fiend
Joined: May 2009
Posts: 5,470
Likes: 3
From: Pea Ridge, AR
Club FTE Gold Member
Originally Posted by 2000F250guy
what sensor tells the computer its cold and to kick on the GP for a bit?
Not one specifically at all.

It is calculated by the PCM, using AIT(Air Intake Temp) BARO(Barometric pressure inside the PCM) and EOT(Engine Oil Temp).
 
Reply
FTE Stories

Ford Trucks for Ford Truck Enthusiasts

story-0

This Hennessey Takes the Expedition Tremor's Off-Roading Capability to the Next Level

 Verdad Gallardo
story-1

Top 10 Fords at 2026 Carlisle Ford Nationals

 Joe Kucinski
story-2

3 Best / 3 Worst Parts of Modern Ford Ownership

 Brett Foote
story-3

10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches

 Pouria Savadkouei
story-4

Every 2026 Ford Engine Explained

 Brett Foote
story-5

10 Ugly Ford Trucks That We Still Kinda Love

 Joe Kucinski
story-6

10 Things Every Truck Owner NEEDS (2026 Edition)

 Michael S. Palmer
story-7

Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath

 Verdad Gallardo
story-8

Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer

 Joe Kucinski
story-9

2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)

 Brett Foote
Old Oct 15, 2012 | 09:34 PM
  #9  
2000F250guy's Avatar
2000F250guy
Thread Starter
|
Junior User
Joined: Aug 2011
Posts: 99
Likes: 0
does it need all of them to function correctly to work? so if say the oil temp sensor was fubar, could it not tell the Gp to heat?

And ty all for the help
 
Reply
Old Oct 15, 2012 | 09:37 PM
  #10  
BigAlsPSD's Avatar
BigAlsPSD
Post Fiend
Joined: May 2009
Posts: 5,470
Likes: 3
From: Pea Ridge, AR
Club FTE Gold Member
If the EOT was reading above 55 degrees Centigrade it wouldn't send the signal for very long if at all.

Your issue sounds like a bad GPR though.
 
Reply
Old Oct 15, 2012 | 09:47 PM
  #11  
2000F250guy's Avatar
2000F250guy
Thread Starter
|
Junior User
Joined: Aug 2011
Posts: 99
Likes: 0
GPR? Sorry not sure what that is.
 
Reply
Old Oct 15, 2012 | 09:50 PM
  #12  
BigAlsPSD's Avatar
BigAlsPSD
Post Fiend
Joined: May 2009
Posts: 5,470
Likes: 3
From: Pea Ridge, AR
Club FTE Gold Member
Glow Plug Relay.

What you jumpered, and called the solenoid (Potato, Potatoe)
 
Reply
Old Oct 15, 2012 | 09:52 PM
  #13  
2000F250guy's Avatar
2000F250guy
Thread Starter
|
Junior User
Joined: Aug 2011
Posts: 99
Likes: 0
Ah, I'll test it in the morning.
 
Reply
Old Oct 16, 2012 | 08:16 AM
  #14  
Brother Les's Avatar
Brother Les
Cargo Master
15 Year Member
Joined: Oct 2007
Posts: 2,712
Likes: 107
From: BoCoMo
Originally Posted by 2000F250guy
Ah, I'll test it in the morning.
Get a little plug in digital volt meter that plugs in to the cig port from Wally world.
1) It will tell you the start state of your batts (12.5 v)....
2) It will tell you if the Glow Plug Relay comes on (drops to 11.5v)
(note truck needs at least 10.5v to start)
3) It will tell you when the GPR shuts off (voltage will start to rise slowly)
4) It will tell as the tuck is running and the GPR is shut off the output of the Alt.
(Alt shout be around 14.3 v((around)) output.

When all info looks good put meter away in console.

 
Reply
Old Oct 16, 2012 | 06:16 PM
  #15  
carltonwebb's Avatar
carltonwebb
Cargo Master
15 Year Member
Photogenic
Joined: Oct 2010
Posts: 2,089
Likes: 16
Since u seem to have issues periodically with your GPR, you may benefit by adding the Glow plug led.

Its simple and will let you know when your glow plugs are not coming on. With the LED in the cab, you can look and instantly see if the GPR is functioning.

Here is a really good writeup on it with pictures.

https://www.ford-trucks.com/forums/7...wmriceman.html
 
Reply



All times are GMT -5. The time now is 04:17 AM.

story-0
This Hennessey Takes the Expedition Tremor's Off-Roading Capability to the Next Level

Slideshow: The VelociRaptor Expedition gains a lift, upgraded suspension, Brembo brakes, and trail-ready equipment while retaining the stock 440-horsepower EcoBoost V6.

By Verdad Gallardo | 2026-06-12 11:01:55


VIEW MORE
story-1
Top 10 Fords at 2026 Carlisle Ford Nationals

Slideshow: Top 10 Fords at 2026 Ford Nationals

By Joe Kucinski | 2026-06-09 11:10:08


VIEW MORE
story-2
3 Best / 3 Worst Parts of Modern Ford Ownership

Based on years of owning multiple modern Ford products.

By Brett Foote | 2026-06-09 10:53:36


VIEW MORE
story-3
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches

SPONSORED: From muddy boots to rain-soaked cargo, these upgrades address some of the most common frustrations Ford truck owners face every day.

By Pouria Savadkouei | 2026-06-08 18:50:34


VIEW MORE
story-4
Every 2026 Ford Engine Explained

Here's everything you need to know about every Ford engine available for the 2026 model year.

By Brett Foote | 2026-06-05 12:58:01


VIEW MORE
story-5
10 Ugly Ford Trucks That We Still Kinda Love

Slideshow: 10 ugly Ford trucks that we still kinda love.

By Joe Kucinski | 2026-06-03 09:51:16


VIEW MORE
story-6
10 Things Every Truck Owner NEEDS (2026 Edition)

Slideshow: the best gifts for dads & grads

By Michael S. Palmer | 2026-06-03 15:43:58


VIEW MORE
story-7
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath

Slideshow: Called the Fortress, the 850-horsepower pickup combines Raptor underpinnings with military-inspired features, survival equipment, and a starting price of $285,000.

By Verdad Gallardo | 2026-06-03 11:38:36


VIEW MORE
story-8
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer

Slideshow: 10 most expensive Ford trucks ever sold on Bring a Trailer.

By Joe Kucinski | 2026-05-27 16:24:34


VIEW MORE
story-9
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)

Here's everything that has changed for the latest model year.

By Brett Foote | 2026-05-27 16:17:28


VIEW MORE