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Old Dec 24, 2008 | 07:10 PM
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fuel filter

How tight do you put it on? Hand tight? Or tighter?

Reason Im asking is ever since I changed mine the truck is not starting the same. I put the new one on as tight as I could with my hands. Filled with clean deisel. Truck started right up and ran fine.

The next day I went to start the truck and it sounded like it was going to start but wouldnt. Even had smoke from the exhaust but just wouldnt catch.Same thing this morning.

It does eventually start. Gp's are fine. Any help would be great.

Lee
 
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Old Dec 24, 2008 | 09:31 PM
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White smoke means you are getting fuel. How do you know the glowplugs are fine? How long does the wait to start light stay on?
 
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Old Dec 24, 2008 | 11:25 PM
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Did you oil the gasket before you installed it?

I put mine on hand tight plus about 1/2 turn with a filter wrench.

You may be getting white smoke, but you may have enough air leaking in to make it hard to start.

What year engine?
How long is the wait to start light on?
 
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Old Dec 25, 2008 | 07:44 AM
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Wait to start light is on for about 8-10 seconds. I checked all glow plugs using test light as read on this site. Ill use a multimeter as I know this test is not fool proof. They are all motorcraft ZD1s that I replaced last spring.

Its a 86 6.9l. I have never had any starting problems before this. Even the coldest mornings it will start. Both batteries are brand new with all brand new cables. Between the batteries, down to the starter. ground straps. I replaced it all.

When its trying to start its more of a greyish black smoke.

Yes I put fresh oil on the gasket.

Could this be a clogged injector?

Thanks for the help.

Lee
 
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Old Dec 25, 2008 | 07:55 AM
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How much fuel pedal are you using after setting the fast idle solenoid, key on...... 1/2 3/4 or full pedal. How fast is the engine cranking over..... if you can count RPM it's NOT fast enough.
 
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Old Dec 25, 2008 | 08:20 PM
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Full pedal. Cant count the revolutions.

Lee
 
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Old Dec 25, 2008 | 11:38 PM
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Have you tried running any Diesel Kleen in it? My 88 sure loves that stuff.

Try plugging in the block heater for a few hours then try to bust it off.



On a side note, WTS light comes on 8-10 seconds?? Isn't that a little short mine (brand new ZD-9's) stays on for at least 15 seconds.
 
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Old Dec 26, 2008 | 12:19 AM
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Dean, he has an '86, those use the ZD-1s, which should glow for 10-seconds or less.
 
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Old Dec 26, 2008 | 12:36 AM
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Thanks for the input. M.L.S.C., not trying to hijick, but could putting ZD-1s in a 88 that is supposed to have ZD-9s cause them to burn out extremely fast. Cuz when I got my 88 the gps worked for a few weeks, and it was supposed to have recently new GP's, but then they burned out fast and quick. So I'm wondering because they guy said something about ZD-1 glow plugs.
 
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Old Dec 26, 2008 | 02:39 AM
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how long did you run the engine after you replaced the filter and started it
 
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Old Dec 26, 2008 | 03:44 AM
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Dean, sure you can swap glowplugs, they got the same thread, but their connectors are different - ZD1s are spades, the ZD9s are bullet type - so if you go from one to the other you gotta swap either the harnesses, or the harness end connectors. Look at your harness, see what ends it got, this will tell you what gloplugs are in there.
 
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Old Dec 26, 2008 | 08:02 AM
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I plowed with it for several hours.
 
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Old Dec 26, 2008 | 08:05 AM
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I use Stanadyne products every time I fuel up.
 
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