Got my first CEL @ 74,000 - Ranger-Forums - The Ultimate Ford Ranger Resource


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Old 08-11-2009
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Got my first CEL @ 74,000

My CEL came on today, does anyone know what these two codes are? It's missing very badly.

P 4055 and P0304
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Old 08-11-2009
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p0304 is cylinder 4 misfire
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Old 08-11-2009
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p0455 is evap leak
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Old 08-11-2009
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What is evaporator leak?
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Old 08-11-2009
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its part of your emissions control system look for vac leaks check hoses and manifold for leaks
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Old 08-11-2009
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Quote:
Originally Posted by RangerJacoby99 View Post
its part of your emissions control system look for vac leaks check hoses and manifold for leaks
Thanks man, I'll check those lines. If I've got a leak that could explain the missfire on #4, right?
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Old 08-11-2009
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pretty much check plugs and wires while your at it and it wouldnt hurt to clean the maf
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Old 08-11-2009
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a misfire usually means either plugs, wires, or coil pack
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Old 08-11-2009
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at 74k miles its a good idea to change plugs and wires anyway!! give it a good tune up
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Old 08-11-2009
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Icon3

Don'tSay, the evap code is probably from the hose
that was disconnected at the spare tire location in
your other thread. It appears to be an evap cannister
purge valve, and will trip a code if it's not working
correctly. These evap valves start sticking as the miles pile up.

That's probably not causing the miss, however.
As was stated, maybe check the plug and wire on the
number 4 cylinder (driver's side front).
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Old 08-11-2009
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Quote:
Originally Posted by Runnin'OnEmpty View Post
Don'tSay, the evap code is probably from the hose
that was disconnected at the spare tire location in
your other thread. It appears to be an evap cannister
purge valve, and will trip a code if it's not working
correctly. These evap valves start sticking as the miles pile up.

That's probably not causing the miss, however.
As was stated, maybe check the plug and wire on the
number 4 cylinder (driver's side front).
Thanks alot man, I'm having plugs and wires installed tomorrow.

Let you know then!
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Old 08-12-2009
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Quote:
Originally Posted by Don't Say View Post
What is evaporator leak?
check your fuel cap, i got that a couple of times, just tighten it a little more,. amd it should fix that
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Old 08-12-2009
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Got my new wires and plugs today. What a difference! It's running great now! Must have needed them for awhile.

Thanks to all that helped out.

This is a great site!
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