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Stutter at idle...

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Old Aug 20, 2008 | 10:20 AM
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Stutter at idle...

Here are the details:

94 Ford F150 XLT 2WD 5.0

Truck was stuttering pretty bad at idle when in drive, reverse or neutral only. in Park it dis not stutter. It got worse with the A/C on.

Change the Spark plugs and replaced Bosch Platinums with Motorcraft stock plugs.

Ran a 2 full tanks of 93 octane gas with FI cleaner.

Truck still stutters the same.

I have the fuel filter but was unable to remove it myself and do not have the tools to cut the hose with.

Before I go pay someone to change the fuel filter, has anyone experienced something similar?

Filter is stock filter and truck has 138,XXX miles...

Does not stutter in acceleration or in park.

Please advise...
 
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Old Aug 20, 2008 | 10:26 AM
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Did you replace the cap, rotor and wires with them plugs?
 
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Old Aug 20, 2008 | 11:19 AM
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nope... just the plugs... I inspected the cap and wires and they checked out ok...

I did notice that one of the wires didnt "CLICK" when i plugged it in, but it isnt lose as I tugged on it a bit and couldnt pull it out without the normal work it takes to take it out...
 
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Old Aug 20, 2008 | 11:32 AM
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when you say "inspected" what does that mean to you?
 
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Old Aug 20, 2008 | 11:44 AM
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removed, looked for cracks,breaks,corrosion
 
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Old Aug 20, 2008 | 11:55 AM
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Looks can be deceiving, if you're not sure how old they are or if you know they have 30-40k on them, replace em with new stuff.

I would also check the base timing with a light, as well as hook up a vacuum gauge to it and see what it tells you.
 
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Old Aug 20, 2008 | 11:58 AM
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I know for sure they have over 30K miles on em. Will change em out today and see what happens... Should i also go the fuel filter route?

Thanks
 
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Old Aug 20, 2008 | 12:12 PM
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Yes replace the filter, it never hurts to do so but I doubt it the problem here.

Do not cut the lines, they are high pressure and can not be spliced with hose clamps.

You can buy a set of line release tools for around 12 bucks to release the line to get it off. Just ask at the counter when you buy your parts, the guy/gal should know exactly what you need.

Takes a little patience working to get them to release with the tool once the line has been undisturbed for a long period of time.

Be sure to push the tool in all the way before trying to pull the line out. Pulling on the line without fulling inserting the tool has a tendency to bend the fingers and they bite in making even harder to undo it.
Take your time, use a little lube like WD-40 to aid in getting the tool to slide in, also flushes dirt out. At the same time be sure to keep your hands clean and dry so you can get a grip!
 
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Old Aug 20, 2008 | 12:17 PM
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Bought both the metal scissors looking tool (broke it trying to use it) and the plastic color tools to remove. Was at it for over three hours. Had my brother come over and give it a go to make sure i wasnt doing it all wrong... Neither of us was able to get them hoses off!

Do have some nice scars on my hands to show for it though
 
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Old Aug 20, 2008 | 01:01 PM
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many tips on how to do this.

i break them off at fuel filter can and then pull lines down to get the rest off.

replace the wires and cap/rotor that is probably the cause.

unless you check resistance then looking them over was just that.
 
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Old Aug 20, 2008 | 01:12 PM
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Originally Posted by quicklook2
many tips on how to do this.

i break them off at fuel filter can and then pull lines down to get the rest off.

replace the wires and cap/rotor that is probably the cause.

unless you check resistance then looking them over was just that.
https://www.ford-trucks.com/forums/6...-mechanic.html

 
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Old Aug 20, 2008 | 06:06 PM
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so I changed the wires, cap and rotor....




No more stutter HELL YES!!!!Thanks!
 
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Old Aug 20, 2008 | 06:17 PM
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glad that helped.

i just changed plug wires on my subaru legacy and it runs even better then it did before.

smoother idle and more pep.
 
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Old Aug 20, 2008 | 06:36 PM
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Now I need to putz with the suspension. Not sure if I want to lift it or lower it...
 
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