Question about 2005 Ford F 350 Super Duty

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I have a 2005 ford f350 diesel that won't start.the glowplug lite goes off,you can here the fuelpump,and the engine turns over,but it won't fire.

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  • Ford Master
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Would hav the fuel injection pump inspected-its located in engine area n is really important-think u can run some type of computer scan also-ask discount or zone

Posted on Sep 05, 2009

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Transit tipper 05 won't start first time when cold I have just had a Diesel pump fitted for 600 pound as this fault was coming up but it still does exactly the same it will start if it is warm but after...


With a Diesel there are additional parts that you have which affect the Cold start. There is a timer between the glowplugs and the Power relay on the start circuit. The timer cycles the glowplugs off/on for a variable time period. The more cold, the longer the cycle period.
Glowplugs go bad. You remove them like sparkplugs. Testing them is a matter of comparison. When power is applied they can melt, so test with care. Hook battery jump cables to each glowplug taking care to attach one lead to the base (avoiding the threads) and then briefly touch the top of the glowplug.
The quicker the plug glows, the better it is. The darker, the worse it is.
But the timer must provide the juice to the glowplug for it to work. A bad timer will not properly heat the glowplugs. The timer must get its' power from the Power relay. So you can have acceptable glowplugs, and a bad timer.
Ultimately once the engine cylinders have run hot enough, a Diesel fires by compression and not by spark as a gas motor does. That is why once you have a hot diesel, it will start freely.
It is why I explained the needs of a Cold Diesel engine and I hope this helps you.

Jul 30, 2013 | Ford Cars & Trucks

1 Answer

2002 Ford F450 7.3 Diesel. Will not start. I use to have to keep truck pluged in all the time for it to start. Now it will not start at all. Turns over fine. Fuel is fine just will not start?? Please...


Hello, Most likely your Glowplug Relay is bad, and it supplies power to the Glowplug Timer which also may be bad.

Just follow the wires that are on the Glowplugs up to the Glowplug timer. Use a Voltmeter and check if the power wire that goes into this Timer has fire when the Ignition is turned to the RUN position. If there is fire going into the Timer from the power Relay, pull off one of the Glowplug wires and ground 1 end of a testlight and put the other end on the Glowplug wire.

The Timer itself will kill the power after a predetermined time based on Temperature. The colder the engine, the longer the Glowplugs stay lit. If you have power reaching the Glowplug, your power Relay is fine. You just have to observe how quick the Timer stays on.

The Glowplugs only have 1 or 2 chances to do their job at the Start-up. They are needed to make a Diesel start cold. Cold meaning at outside AIR temperature, and engine block temperature. There should be clicks under the hood and the lights should flicker in rhythm to the clicks if the Timer is working.

If you find that both the Timer and Power Relay are working, the Glowplugs need to be tested. They come out like sparkplugs. But you test them either on a special machine or use battery jumper cables. To test, hook one battery cable to the Glowplug base, avoiding the thread. Then take the other cable and arc it on the top of the Glowplug.

Caution, you can melt the Glowplug. If you get a bright glow, the Glowplug is good. If the Glowplug is dark or very slow to glow, it is bad. This should be all you need. Would appreciate a note after you fix it.

Jul 06, 2011 | Ford F-450 Cars & Trucks

1 Answer

I have a 1995 ford f350 turbo diesel snow truck, and when i turn the key dosent start and makes like a clik clik under the hood


Okay, If this noise happens when you turn the Key to start, your Starter Relay is bad. Now the other possibility is the Glowplug Timer. When you start a Diesel there is a pause in the initial cold start. You turn the Igniition Key to Run, then let the Glowplug Timer cycle. This cycle sound will be a series of clicks which also may cause the lights to dim.

The glowplugs absolutely must warm up to start a cold diesel engine. There should be a light on the dash which either goes off when the glowplugs are ready or a light will turn on when they are ready. It is only after that activity that you will turn the Key to Start.

Since Diesels take more power to Start, there are 2 batteries. As with a single battery system, every connection must be clean. If the Glow-plug Timer is working and you only get clicks by turning your Key to Start, check the things I said earlier. Your Starter Relay and the big cable connections.

If after all of that, the engine will not turn over and only clicks, jump the Starter Relay with 1 cable from a jumper cable set from the Positive Battery cable post to the Starter Relay on the Starter wire connector. Make sure the truck is in Park or Neutral. If the Starter jumper cable sparks and the Starter does not turn, the Starter is bad. If the Starter spins it confirms the Relay is bad.

I hope my Solution gets you going and that you consider this helpful.

Jan 27, 2011 | 1995 Ford F350

1 Answer

A relay in the dash board ic clicking and truck wont start its a 1999 f250 super duty diesel. it turns over but wont start. i just installed new fuel pump its working fine


It sounds like the "Timer" for the glowplugs, but you may want to prime the Fuelfilter to provide a draw for the fuel. One of the problems is you lost the fuel in the lines as soon as the fuelpump was disconnected.

If you installed the fuelpump because of a "NO start" condition it may have been the Glowplug timer all along. You may have taken a wire loose for the Timer or broken a wire. The Timer box needs feedback from the Glowplugs.

Disconnect one of the Glowpug wires and put in a test light to the wire. Observe when you put the engine in RUN position if the Testlight will light up. If the Testlight does not light, you are not getting power to the Glowplugs.

Diesels need Glowplugs only for starting. After that, the compression operates the engine. The Timer for the Glowplugs regulates how long the Glowplugs work each cycle. You may have to test the Glowplugs if they get power but do not work.

Each Glowplug is like a sparkplug. You would need to pull them and connect 12 Volts to each. Use a jumper cable and do not touch the threads. Use power sparingly or you can melt them. But 1 by 1 you can see a difference in a bad or good glowplug by how each gets hot.

Aug 14, 2010 | 1999 Ford F250 Regular Cab

1 Answer

2005 f350 6L deisel shut off and wont run. will try to start on starting flued. fuel in fuel fillter is full can hear the pump.


You should check the Glowplug Timer. Most likely it is the Timer because the Diesels need the Glowplugs working to start. Then they fire from compression.

So even though the Starting Fluid reached the cylinders and the Fluid has a better Ignition point, it still needs hot Glowplugs.

You can check a few wires on the Glowplugs by using a voltmeter or Test light. Unplug each wire and then turn the key to On and observe if the Tester pulses a few times before your Ready Indicator goes out on the dash. If the Timer is not firing the Glowplug, test the power wire TO the timer. There should be a Relay for it.

You can jump the Power lead to the Timer and let the Timer heat the Glowplugs. Remove the jumper after the "Clicking" stops. Then repeat. Now hit it with a spray of Starting Fluid and see if she will run.

Then backtrack the Power wire to the Relay and see if the Relay is getting power. There could be a fusible link to the Relay that is burned out.

Would be interested to learn what you found. Autozone and Oreillys can sometimes pull up locations for the components they sell.

Jun 26, 2010 | 2005 Ford F 350 Super Duty

1 Answer

I have a 2006 super duty f250 diesal.It cranks,but will not start.What do I need to do? I replaced both batteries with new ones.


Get a voltmeter or Test light and take off one of the Glowplug wires. The Glowplug is similar to a sparkplug and is not connected to the Fuel rail. You want to see if the Glowplug wire is getting power. The wire should have at least intermittent power, full power for a initial Cold start. This power lasts under 2 minutes.

Diesels need a Hot Glowplug to start the engine. All of the Glowplugs are connected to a timer box. The timer box is also Temperature controlled to stay on longer in the coldest weather. You should hear a "clinking" noise and the lights should dim in sync with the clicks.

If you are not getting spark to the Glowplugs check the connections to the timer box. If you are getting spark to the Glowplugs you may need to check them. Pull a few out and use jumper cables to briefly energize them. Watch out not to damage the threads. As you test do not overdo it. You can melt them!!

Finally, the fuel. Take off the fuel filter and observe if the fuel filter is empty or full. If empty you have a bleedoff problem in the fuel lines or a bad fuelpump.
Replace the filter with a new one and prime the filter with fuel. If the engine starts and then dies, you must find the bleedoff hole in the fuel line or check the output of the fuelpump with a gauge.

Diesels are harder to work on. I have read about crankshaft sensors causing problems. But for the most part, diesels are still primitive and the basictests have to be done by hand.

Jun 05, 2010 | 2005 Ford F 350 Super Duty

1 Answer

2000 F350 7.3 diesel extended crank before starting


Check glowplugs, if they aren't staying on long enough it will have extended crank. Might try cycling ingnition a couiple of times. May aeve some bad glowplugs, relay or possible glowplug wiring harness issue.

Feb 10, 2010 | 2000 Ford F350 Super Duty Super Cab

3 Answers

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.

Jan 11, 2010 | 2006 Ford F 350 Super Duty

2 Answers

Engine smoke and doesnt start easy when it is cold


Ones the diesel engine gets weak its thn a hard start!, becausea diesel engine mainly fires up on good compression, i guess its time for an engine overhaul .

May 06, 2009 | 2005 Hyundai Santa Fe

1 Answer

2005 F350 DIESEL,WAS RUNNING,SHUT IT SHUT OFF,WON,T START


first check the oil and see if it is full. the injectors are fired by oil pressure so check those things first.

Jan 31, 2009 | 2005 Ford F 350 Super Duty

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