98 7.3 wont start turns over clean fuel
 

I have 98 Ford e350 7.3 ps diesel ambulance. I started the truck drove a couple hundred yards and the motor shut down as if someone turned off the ignition. When try to restart the motor only turns over, there has been no iddication of any problems like running rough or any other sign of fuel problems. I have drained the fuel completly and found no comtamination. I am in Mexico so to find help is diffficult. Also I am have a problem finding a good fuse and relay diagraham online I am hoping for a simple solution to my problem. Hoping for help.

Is the WTS light coming on?

Does the tach move when cranking?

Is there any smoke coming out the tailpipe when cranking?

Thanks for the reply the wts light is not coming on and the digital tach is not reading but gives a Cerr code and no smoke. daves

Sounds like a CPS... They aren't very expensive and really easy to replace.

Check all your fuses also.

And a CPS is a ? And you find it located where?

Camshaft positioning sensor..

It's behind the bottom left pulley, I believe it's 2 bolts holding it in real quick and easy to get from under the truck, just be care full not to strip the bolts

I just found a 30a fuse blown it is number 8 do I just replace and try or would I have to change the CPS first?

Definitely replace a blown fuse... I don't have a fuse diagram in front of me so I'm not sure what that one is for..

The tach not moving usually means bad CPS...

I replaced the fuse but it blew when I tried to start it, would the CPS cause this to happen.

No... Unplug the fuel bowl heater wire at the fuel bowl... If it is shorting out, it will blow the fuse and cause a no start issue.


I found this for you...http://www.motorcraftservice.com/pub.../98ecoog1e.pdf

The #8 30a fuse is being blown because the fuel bowl heater. Unplug it, replace the fuse and you should be good to go... Forget the CPS for now.

Sorry to sound like an idiot but where is the fuel bowel heater?

It is the only wire heading to the fuel bowl...

Attachment 42514

I have disconnected the fuel bowl heater and replaced the fuse but fuse blew again on restart. This try the wst light did come on.

Radio Capacitor(s), Ignition Coil, PCM Diode,
PCM Power Relay, Fuel Heater, Glow Plug
Relay (Diesel)

Those are the only things on that fuse circuit so the short has to be one of these.. The fuel bowl heater is the most common.. Have you looked at that link i posted, click on index and then scroll to page 80-84.. Are you sure its #8 fuse?

Thank you so much for your help I am Forded out for today time for fish tacos and beer. I will try again tomorrow. Hope you have a great evening!
Check out our video on youtube, la paz zodiac charters. It will make you wish you were some where warm. Thanks

Thanks for the link to the web site for some reason I am unable to access it from Mexico, I tried the diesel technician society site and could get into it either. I am going to have somebody download it and email it to me.

Daves... I would look deeper into that fuel bowl heater... Need to follow the wiring and see if it is shorting somewhere. I have a feeling that is what is blowing that fuse and killing power to the PCM.

I have eliminated the the batteries as a possible cause. I am waiting to have a wiring diagram sent to me by the dealer, local Ford dealer will not copy any of there papers for me. Also a problem accessing the motorcraft site you sent me. Thank you very much for your help once I have the diagrams it will be easier.

Also, just for chits and gigs, check your GPR wiring... That is also on that circuit... I guess it could be possible that it is shorted out blowing that fuse... Do you hear a click when you turn the key to the ON position?

Sorry I dont have all the terms down I will know more by the time this thing is running, and a GPR is a ? I will try to get a scanner on it today.

Glow Plug Relay

Glow plug relay. It is located in the just to the left of your fuel bowl... It supplies energy to your glow plugs.

Had the same problem. It was the fuel bowl heater except it was burning fuse #22 disconect wires on fuel bowl and make sure they are not contacting metal tape the ends 97 Obs

Thanks to those of you who helped with suggestions and yes it was a problem with the wiring harness that connects to the fuel bowl heater, the wires are routed to close to the turbo and had melted through causing the short. My Mexican mechanic elimanated one thing at a time, but for 150 dollars he rebuilt my starter, new selenoid, two new relays and wiring harness plus about 6hrs labour. Try that in Canada or anywhere else. So thanks again. daves

You are correct except for fuse 22 is for F series... His is an E series which is why it is #8.

Glad to hear you got it. :c:

hey. See. If. You can shed some light on this problem I have on my 97 powerstroke she runs well , new transmision ,new filters but on take off engine sort of stumbles, slight hesitation engine sounds fine when idle
s

Feel free to do a search on the site... Then post up a thread if you can't find the info you are looking for. We will need more information than that though. Let's try to keep this thread on track.

1997 powerstroke has a slow throtle respond all filters are new , also new lift pump, new trans she starts of well and after 50 mph there's no diference if I accelerate Any tips appreciated

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97 powerstroke loss of power ,slow throtle respond Has new trans,new filter elements She starts up fine in cold or warm weather But at times when driving she don't respond when acelerating

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97 powerstroke loss of power ,slow throtle respond Has new trans,new filter elements She starts up fine in cold or warm weather But at times when driving she don't respond when acelerating

How many miles does this truck have on it? Any smoke when you are having issues? How long since you last changed the oil?

97 slow throtle repsond loss of power
 

There s. 242000 miles on the engine daily driver never towed or pull heavy loads and she gets new oil changed every 3000 miles rotella 15-40 she has a slow respond when I try to speed up and passs trafic. She stumbles. On acccelerstion. I rebuilt trans thinking that was the problem but no difference. Could. Weak injectors or irp valve be the culprit also has new botch fuel pump I instaled 4 mths ago. She starts up fine in cold weather. But there is a slight miss when idle , truck is all stock only KN ftr and 4"exhaust No check engine light comes on. Any tips would greatly be Appreciated. Thanks ,95 powersmoker

Raul, Start up a new thread. Sounds like you have a separate issue.

I have a 1998 e350 diesel 7.3 liter van and I am having similar problems as daves the link that you provided to look at is not working for me to look at those pages is the fuel heater on the side of the van or in the back side? and if you can provide me with a different link that might show me the diagram you were referring to in the reply to daves? thanks

It's the only wire going to the fuel bowl. On the drivers side of the bowl... Unplug it and replace the blown fuse.

where would i find the fuse going to the fuel heater /???????

I believe yours will be fuse 30 but make sure in your owners manual. You can also find a link in the sticks on the forum for an online owners manual if you don't have yours. Im on my phone otherwise id help you find it.

Not true 97's have 2 wires on the drivers side. Heater wire on top and water sensor below.

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