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Ford diesel engine hard start but runs great - 1991 Ford F250

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6ya6ya
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Posted on Jan 02, 2017

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zeusfaber
  • 247 Answers

SOURCE: F-350 turbo-diesel hard starting

Imagine the white smoke is unburnt diesel. Anybody standing in the middle of it will be able to tell you soon enough.

Most likely culprit is that one or two of the glow plugs aren't getting hot enough. Usually just that the plugs need replacing, but worth checking first that the busbar which runs between them all is getting +12V at the appropriate stage of the process.

A.

Posted on Jul 20, 2008

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samson-1
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SOURCE: ford focus turbo diesel low oil pressure with no knocks from engine

Possible oil sending unit problem.

Posted on Oct 24, 2008

  • 115 Answers

SOURCE: ford focus engine cuts out when driving. coilm

Hi, You need to plug this into a code reader and see what codes are stored the most common reason for the engine cutting out is internal fuel pump failure will also cause poor starting

Posted on Jul 10, 2009

  • 14036 Answers

SOURCE: 2003 ford f 350 diesel cannot get the engine to

CHECK ELECTRIC FUEL PUMP FUSE THAT SUPPLYS THE INJECTION PUMP FUEL.IF ALL IS GOOD.REPLACE FUEL FILTER AND AIR FILTER.MAKE SURE GLOW PLUGS AND GLOW PLUGS CONTROLLER IS WORKING. IF NOT. THAT WILL CAUSE NO STARTING PROBLEMS BIG TIME.

Posted on Sep 08, 2009

  • 4 Answers

SOURCE: i ahev a 2005 ford f350 with 6.0 diesel, i am

Bad Injectors most likely. I have a 2006 f-350 and was having the same problem. I ended up changing the fuel pump and 4 injectors.

Posted on Jan 29, 2010

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DI have a 1983 ford f250 with 6.9 diesel engine. The previous owner told me that the front fuel tank did not work; he said that he was running the truck on the front tank once and that the truck started...


have you looked into the injectors, or injector balance? glow plugs just preheat the cylinders before you start turning the engine over. if the injectors are dumping too much fuel it will run rich and blow black smoke, lean it will dump white smoke, same as if it has an internal coolant leak, but smell different. Ford has had problems with EGR systems on some of their diesels, being an older truck how many miles is on it? and the front fuel tank could have a bad fuel pump, pretty common for them to do what you have described. Also might want to have the timing looked at on it! It ignites off of pressure, and if the timing is off it will adversely affect the ignition of the fuel which will make for hard starts, and poor running. there is a lot that needs to be looked at to figure this one out! could be quite a few different things. Good luck!

Nov 20, 2013 | Cars & Trucks

1 Answer

91 f350 7.3 desiel starts then dies lots of crankin 2 get started back once its started run great


Check for power on the glow plugs. You have two fusible links on the passenger side by the stater relay and a plug going over to the engine. These plugs get intermittent and that can cause your hard starting; the glow plugs themselves maybe burnt off. I've seen this happen with the other Ford diesels in our tow trucks!

Aug 01, 2012 | 1991 Ford F350

1 Answer

2003 f250 diesel 6.0 hard start when cold, idles rough and dies. runs great once warmed up. Battery light is on but volts are 13.? Not sure if the 2 problems are connected or not


It sounds like your preheat system is not working properly on the cold startup. Haynes has a Diesel Engine Repair Manual, part #10330 that will help you correctly diagnose and repair.
Battery volts at 13 is good but a fully charged battery should be close to 14.2. It would be a good idea to get the alternator output checked and a load test done on the batteries.
Hope this helps.

Jul 12, 2010 | 2003 Ford F250 Super Duty Crew Cab

2 Answers

We think it is the diesel injection pump but not sure


Sounds like not all the glow plugs are working.It should run fairly smooth on a cold start if all of the glow plugs are working..Also you shouldn't drive off on a cold start with a diesel,Its really hard on the motors..At least give them 10 to 15 min on a cold start..The oil in them is a really thick oil and when there drove on a cold start theres no oil lubricating the internal parts and will cause the motor to seize up..You may already no this and dont mean you drive it as soon as you start it i just wanted to let you know..When you get alot of white smoke it could be two things,Theres water in the fuel which will make it not have much power die and smoke..But if it runs fine when its warm theres some bad glow plugs...Hope this helps you and have a great day

Dec 08, 2009 | 2002 Ford F250 Super Duty SuperCab

1 Answer

1999 escort 1800 diesel not starting


For a short term solution, you could run a small electric heater within the engine compartment which will keep everything nice and warm for your early morning starts.
I remember my father using an extension trouble light and leaving it under the engine compartment during the winters.

Jan 29, 2009 | 1999 Ford Escort

4 Answers

F-350 turbo-diesel hard starting


Imagine the white smoke is unburnt diesel. Anybody standing in the middle of it will be able to tell you soon enough.

Most likely culprit is that one or two of the glow plugs aren't getting hot enough. Usually just that the plugs need replacing, but worth checking first that the busbar which runs between them all is getting +12V at the appropriate stage of the process.

A.

Jul 20, 2008 | 1995 Ford F350

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