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

Engine will not start

Thread Tools
 
Search this Thread
 
Old Sep 26, 2011 | 10:06 PM
  #1  
ltnflvr's Avatar
ltnflvr
Thread Starter
|
New User
Joined: Sep 2011
Posts: 14
Likes: 0
Engine will not start

Ok. So I have been reading posts for days now trying to troubleshoot my issue. Here goes.

It is a 2003 E-450 7.3 Turbodiesel shuttle bus. It has 335k miles. I was driving it and it just shut off while driving. It would not start. An hour later it started and then shut off .5 miles down the road. Now, it will not start at all. It cranks and I jump start it to keep battery strong, but it wont start. Starter fluid helps it fire a little bit, but not enough.

I changed the fuel filter, CPS sensor. I disconnected the ICP sensor. I filled up the HPOP. The wait for engine to start light is working. Also, the oil light is on, but no check engine light. Oil is full.

So today, we are using starter fluid to try and start it and the fluid catches on fire and blows up. My friend is ok. No harm. But I guess at this point, I am asking for advice. Next step, etc. Let me know what you think. It is football season and this bus needs to tail gate! Thanks in advance.
 
Reply
Old Sep 26, 2011 | 10:37 PM
  #2  
BigAlsPSD's Avatar
BigAlsPSD
Post Fiend
Joined: May 2009
Posts: 5,470
Likes: 3
From: Pea Ridge, AR
Club FTE Gold Member
First off, keep the ether away from this engine. There are really only a few requirements to start the engine, good RPM signal to the PCM. ICP pressure of 500+, fuel, and 10.5+ volts while cranking. That is with an understanding that the compression is good too. Dying while driving usually points towards something electrical, but how did it die? Like someone turned off the key, or stumbled to a stop?
 
Reply
Old Sep 26, 2011 | 10:44 PM
  #3  
ltnflvr's Avatar
ltnflvr
Thread Starter
|
New User
Joined: Sep 2011
Posts: 14
Likes: 0
Well, the dash lights came on and it just shut off quickly. Not even like sputtering. Just off. Oh yah and I completely forgot to say this since things have just been frustrating and full of obstacles. The bus has a new starter. However, the part the bolt goes through snapped off when it initially shut off. The bolt on bottom fell off completely. I reattached the bottom bolt and got the bus started for the .5 mile drive til it shut off again. Then, I returned the starter and put a new one in. But maybe that helps with ideas.
 
Reply
Old Sep 26, 2011 | 10:46 PM
  #4  
BigAlsPSD's Avatar
BigAlsPSD
Post Fiend
Joined: May 2009
Posts: 5,470
Likes: 3
From: Pea Ridge, AR
Club FTE Gold Member
Where did you get the CPS?
 
Reply
Old Sep 27, 2011 | 06:31 AM
  #5  
ltnflvr's Avatar
ltnflvr
Thread Starter
|
New User
Joined: Sep 2011
Posts: 14
Likes: 0
advance auto parts. it is black in color.
 
Reply
Old Sep 27, 2011 | 07:15 AM
  #6  
gdn's Avatar
gdn
Senior User
15 Year Member
Joined: Nov 2006
Posts: 150
Likes: 0
From: Vermillion, SD
Get one from Ford, the one's from auto parts stores have had quality problems.
 
Reply
Old Sep 27, 2011 | 07:52 AM
  #7  
ltnflvr's Avatar
ltnflvr
Thread Starter
|
New User
Joined: Sep 2011
Posts: 14
Likes: 0
Man... seriously? I mean I understand the item not working as well as the OEM. But not at all? OK, I will call the dealer. Havent there been posts about this part initially being quoted at hundreds of dollars and then the dealer being talked down in price?
 
Reply
Old Sep 27, 2011 | 09:25 AM
  #8  
ltnflvr's Avatar
ltnflvr
Thread Starter
|
New User
Joined: Sep 2011
Posts: 14
Likes: 0
So I searched for this topic, but didnt find it. Should I be jumping the auxiliary battery with a second vehicle for max jump power? Battery is a few months old, but the car jump start just doesnt seem to be giving it great juice.
 
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 Sep 27, 2011 | 01:08 PM
  #9  
BigAlsPSD's Avatar
BigAlsPSD
Post Fiend
Joined: May 2009
Posts: 5,470
Likes: 3
From: Pea Ridge, AR
Club FTE Gold Member
Yes definitely get the ford/international CPS, should be around $25. As far as jumping, usually the passenger's side battery as it is closer to the starter is a little better, you might have corrosion/connection issues as well, clean up all the connections and terminals, mix baking soda and water to make a paste to clean the terminals and posts, rinse with water and apply noalox or petroleum jelly to prevent further corrosion.
 
Reply
Old Sep 27, 2011 | 03:31 PM
  #10  
mikeyc0120's Avatar
mikeyc0120
Senior User
Joined: Nov 2009
Posts: 230
Likes: 0
From: Tampa, FL
I notice nobody suggested and you didn't say you check it, but fuel pump? When you cycle the key do you hear it prime? If not, check fuel pump reset switch in pass side kick panel. If good check the fuse/relay. I hate when nobody thinks about the simple things first...
 
Reply
Old Sep 27, 2011 | 07:11 PM
  #11  
ltnflvr's Avatar
ltnflvr
Thread Starter
|
New User
Joined: Sep 2011
Posts: 14
Likes: 0
It still makes the buzzing noise when i cycle the key, which I believe is the fuel pump. Right now, I am thinking IPR. But I will get the OEM CPS tomorrow and try that instead of advance auto one.

So can I hook 2 cars up to it when jump starting? I was thinking one car to the aux. battery and the second to the main battery. My starter connects directly to front battery btw.

I did fill the HPOP with oil, but maybe it is leaking right out. I guess I should check to see if it still has oil in it....

Any reason why the oil light would be on? I do not recall that being on when the key is in ignition prior to turning to start...

BTW, Vehicle has 335k, but engine has about 90k. Not sure if any of these details help. ...
 
Reply
Old Sep 27, 2011 | 07:27 PM
  #12  
BigAlsPSD's Avatar
BigAlsPSD
Post Fiend
Joined: May 2009
Posts: 5,470
Likes: 3
From: Pea Ridge, AR
Club FTE Gold Member
If you open the fuel bowl and there it is likely that the fuel pump is running, you could open the drain and turn key to on, to see if you have flow, does the wait to start light come on?

Technically you could hook 2 cars to the batteries, yes, i would just be patient with one though IMO.

Without the engine running your Oil pressure light will be on, you do not have oil pressure. Some the oil pressure goes right up while cranking, others, like mine, about 1/2 a second after running before it goes out.

Definitely swap the CPS, keep the Advance one in the glovebox if this is not the issue as it may get you by if you have another CPS failure.

If your issue is not the CPS, there are still alot of possibilities, IPR is one of them, quick check would be to insure that the "tin nut" on the back of the IPR is on.

One thing to consider is that in order for the commands to be given to try to start the parameters in my earlier post have to be met, most of them are easiest determined by the use of a proper diagnostic scanner.
 
Reply
Old Sep 27, 2011 | 07:28 PM
  #13  
F350-6's Avatar
F350-6
Post Fiend
Joined: Mar 2007
Posts: 26,966
Likes: 50
From: Texas
I agree getting a CPS from Ford is the right thing to do. We've read too many threads where an aftermarket CPS resulted in a no start. For $25, it's worth knowing for sure.

When you turn the key on, we need to know if the fuel pump comes on for about 20 seconds and then shuts off. This isn't necessarily about fuel, but the circuit that powers the fuel pump also powers parts of the PCM, so a dead fuel pump can mean the computer is not getting any power either. I know you said you hear a buzzing, but please verify if it's the fuel pump. The fuel pump looks a lot like a fuel filter for a gas engine except for the wires attached to the front of it. It's mounted on the frame rail below the driver seat.

If you had to re-fill the HPOP reservoir, you need to find out if it's still full or has drained back down again. If it's low, top it off, crank, then check the level again. If something is causing the reservoir to drain down or not fill, it can cause a no start.
 
Reply
Old Sep 27, 2011 | 07:29 PM
  #14  
mikeyc0120's Avatar
mikeyc0120
Senior User
Joined: Nov 2009
Posts: 230
Likes: 0
From: Tampa, FL
Originally Posted by ltnflvr
It still makes the buzzing noise when i cycle the key, which I believe is the fuel pump. Right now, I am thinking IPR. But I will get the OEM CPS tomorrow and try that instead of advance auto one.

So can I hook 2 cars up to it when jump starting? I was thinking one car to the aux. battery and the second to the main battery. My starter connects directly to front battery btw.

I did fill the HPOP with oil, but maybe it is leaking right out. I guess I should check to see if it still has oil in it....

Any reason why the oil light would be on? I do not recall that being on when the key is in ignition prior to turning to start...

BTW, Vehicle has 335k, but engine has about 90k. Not sure if any of these details help. ...
Ok just be careful because theres a "buzz" that comes from the engine compartment which is the vacuum pump. The fuel pump is much quieter and comes from underneath towards the rear.

As for the batteries yes you can. Since you're not connecting them in series, you're not changing the voltage but simply supplying more amps. The longer you crank tho the more you chance burning up the starter, and obviously disconnect quickly if it does start.

Check your oil level on the stick to make sure its not telling you its empty. Otherwise the oil light might be on just cause theres no pressure when its not running.
 
Reply
Old Sep 27, 2011 | 07:43 PM
  #15  
ltnflvr's Avatar
ltnflvr
Thread Starter
|
New User
Joined: Sep 2011
Posts: 14
Likes: 0
I did not notice a dipstick on the hpop. Just the allen head to remove. Which I do remove to stick my turkey baster in there with oil. I will check the fuel pump tonight. I assumed that buzzing was it, but I will get under the bus and have a friend turn the key.
 
Reply



All times are GMT -5. The time now is 01:04 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