PDA

View Full Version : F350 diesel won't start


Markf
09-03-2005, 02:39 PM
Gentlemen,
We have a 99 F350 diesel, 4x4, auto, 85,000 miles. One week ago, the engine bucked taking off from a stop sign. Similar to being in 5th gear doing 10mph. Floored the pedal and it cleared itself. Just now, same symptoms, however, it will not start. Turns over with no problem but will not ignite. Batteries seem fine. We disconnected both batteries for 10 minutes to no avail. Any suggestions would be appreciated. Thanks.
Mark

wriken
09-03-2005, 02:41 PM
probably your CPS, I have one for sale :)

lwcmattlifter
09-03-2005, 02:44 PM
What does the tach register when cranking? If it's not moving most likely it's a CPS like Wriken said. Did you get a CEL when it started bucking?

Markf
09-03-2005, 02:48 PM
What a quick response. Thanks. But what is a CPS and CEL? I am new to this. What is the $ for the CPS?
Mark

lawnmaniac883
09-03-2005, 04:39 PM
Not as familiar with Fords as I am Dodges with cummins, but, make sure you are getting fuel. Check/change the fuel filter as a starting point. Im assuming a CPS is high pressure fuel pump?

jimslawns
09-03-2005, 05:22 PM
CPS is Cam Position Sensor, A common fault of PSD, many people will keep an extra in the truck.

Ironmower
09-03-2005, 06:07 PM
Definitely sounds like a CPS to me as well. It's good insurance to keep a spare in the glove box.

lawnmaniac883
09-03-2005, 07:47 PM
Ohhh, why didnt you say so lol. Cummins has faulty ones too.

lwcmattlifter
09-04-2005, 02:20 AM
CEL = check engine light. I was asking about the CEL because if your IPR (injector pressure regulator) is not working right it would also cause a no start.

Markf
09-04-2005, 09:51 AM
We tried this AM to start the truck. No luck. The tach register only about two to three hundred RPM. There were no other lights that stayed on. My son does not recall if the CEL was on our not when it started to buck. Thanks.
Mark

kc2006
09-04-2005, 11:26 AM
if the tach moved then its not the cps. If it was bucking its possible that one of your glowplug harness' is burned up. Theres 4 plugs that go into the heads in the valley of the engine (where the intake normally is) pull them out and check them, they burn up and the engine will shut off a cylinder or a whole bank of cylinders. This happend to me before, it was the glow plug one that burned and the injector one started to causing it to shut down that side of the engine. Ran just like your saying. Always go to an international dealer too, ford is pricey, ford wanted 90 i think i got a set of 4 new plugs with the tool to install the little wire pins for 35 bucks. Same with cps's, 200 and some at ford 99 at international or theres a guy on ebay right now seling them for 60 brand new.

Markf
09-04-2005, 05:28 PM
Ok. On the dieselstop.com site, it was suggested that the battery may be too weak to do its job. I have had the charger on one battery for 4-5 hours and the reading has not gone below 4 amps. Is this normal? I have not touched the other battery as of yet. The funny thing is that both batteries show a strong green indicator. Unfortunatley, I do not have a hydrometer.
Mark

kc2006
09-04-2005, 05:49 PM
You should only have to charge the one battery, the primary (passenger side) battery operates the engine. I'd borrow a multimeter and test them, they should be at 12v with the truck off i do believe. I'm bad with electric systems.

Whats the volt gauge on the dash show when you turn the key and let the glow plugs warm up?

SHOWCASE LAWNS LLC
09-04-2005, 07:19 PM
could be overfueling or what about simply a clogged or defective fuel filter. i used to work for a co that had isuzu npr diesels.....if we didnt change the filters evry 2 months the truck would slow down dramatically then all of a sudden the fram fuel filter would burst and dump fuel stalling the truck.

Markf
09-04-2005, 08:24 PM
I got the truck to start using the old batteries. It ran rough, but no smoke. It took about 30 seconds of me holding the accelerator down until the engine ran on its own and it smoothed out. I swapped batteries from my other 7.3 into this one. The truck starts and runs on its own with no help from me, but it takes 4 seconds (we timed it) of turning the engine over for the engine to catch. Before, it caught right away. I hope this enough info for you guys to help me. Thanks.
Mark

lawnmaniac883
09-04-2005, 08:31 PM
Check that dang fuel filter already! Also, it sounds like your glowplugs may not be heating like they should be. I cant help it, Another Quality FORD Product!

Markf
09-04-2005, 08:55 PM
I'm checking!! I'm checking!!! LOL

kc2006
09-04-2005, 09:04 PM
Did you check the 4 plugs in the heads? If its taking along time to start its possible one of those plugs is burned and messing up the glowplugs. Its possible its either those plugs or the harness. Check the fuel filter too, they're so easy to check thats always the first thing i go to.

zim bob the landscaper
09-04-2005, 11:18 PM
the fords have so many problems you should just go with chevy just my opinion

wriken
09-05-2005, 10:22 AM
I have a idea, it could be one of the fuses located under the hood, in a fuse box located, probably by the drivers side fender. Thats where it it on my old 95 f-350. check all the fuses especialy the big ones, 30 and 50 amp ones. Could be a fuse they label # 22 or 20. This happened to my f-350 once.

wriken
09-05-2005, 10:24 AM
I missed you post where you got it started, so forget the fuse theory :)

lawnmaniac883
09-05-2005, 01:34 PM
Ahh, he got it started yes, but it doesnt run right for ~30 seconds. About the time it takes for the cylinders to build adequate heat for proper compression based combustion.

Markf
09-05-2005, 08:02 PM
Looks like it was the fuel filter. Thanks all for the suggestions and the advice.
Mark :waving:

UNISCAPER
09-05-2005, 08:27 PM
Keep an eye that.
Ford had a 99 thru 2003 with galvanization flaking off fuel tanks, going into the transfer pump, then clogging the filter. We could have put a filter a week on the truck and they would keep clogging.
After Ford replaced my fuel tanks the problem went away, but then Ford rejected the claim saying it was sand that caused the flaking whch led to the failure. I got stuck with an $1,800.00 bill that if they had the sense to put a fliter between the transfer pump and the tank, would not have as big of a problem. Funny thing too. They never could show me the supposed sand. I'm betting it was the galvanization all along.

lawnmaniac883
09-05-2005, 09:38 PM
Looks like it was the fuel filter. Thanks all for the suggestions and the advice.
Mark :waving:


How did I know?