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  #1  
Old 09-05-2010, 08:10 AM
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Default Starting/Cut Out Problem

2003 3.0 5 spd. I have had a problem with my engine cutting out on acceleration for a couple of years now. As I accelerate hard (like onto the freeway) at about the same rpm the engine will cut out until I let off the accelerator. It is almost like you turn off the key. In addition, when it is warmer outside and after the engine is warm and I shut it off and then try to start the engine it will not start. If I wait 20 to 30 minutes it will then start and might not do it again for weeks. I have not had the check engine light come on and no codes. Any help would be appreciated. Thanks, Robert.
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  #2  
Old 09-06-2010, 05:11 PM
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Default Re: Starting/Cut Out Problem

Is your problem similar to this?......the accelerating part....not the part about it not turning back on when you turn it off.........

quote::
When i want to drive accelerate normally my engine carry's out through the rpm's just fine and my transmission gives no problem....

BUT! as soon as i want to start passing other cars or suddenly pick up speed i would push down on the accelerator some more and my transmission would kick down one gear (as it is sopposed too) but once its in this gear and it starts going up to say 4000 rpm it suddenly starts kicking violently and it wont go past 4,000 rpm.

ANOTHER INTERESTING THING......is that when i decide i really want to push the pedal all the way down from say a dead stop....She will take off just fine and if i am already rolling then she would just kickdown a gear and continue....its when i am completely stepping on it that it does not buck around 4000.....i think to my self that its actually working...but when i get to around 5 ish it suddenly kicks back.....but for a very short moment.......and after that it continues perfectly fine and i can continue to speed up as much as i want ( until i hit that 92 mph limit of course)
end quote::
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  #3  
Old 09-07-2010, 07:49 AM
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Default Re: Starting/Cut Out Problem

Thanks for the reply. Yes it is similar to your scenario. It cuts out when I get to about that rpm but if I back off the gas and continue with less gas it will be ok past that point.
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  #4  
Old 09-07-2010, 09:27 AM
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Default Re: Starting/Cut Out Problem

Sounds like a lack of fuel. Replacing the fuel filter would be a good start, then check fuel pressure if it still does it. If fuel pressure sucks, there is a regulator that could be bad or the pump is shot.
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  #5  
Old 09-07-2010, 09:27 AM
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Default Re: Starting/Cut Out Problem

Sounds like a lack of fuel. Replacing the fuel filter would be a good start, then check fuel pressure if it still does it. If fuel pressure sucks, there is a regulator that could be bad or the pump is shot.
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  #6  
Old 09-07-2010, 12:39 PM
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Default Re: Starting/Cut Out Problem

Quote:
Originally Posted by robertgrindle View Post
Thanks for the reply. Yes it is similar to your scenario. It cuts out when I get to about that rpm but if I back off the gas and continue with less gas it will be ok past that point.
alright then cool. Lets stick together on this one and see if we can figure this out
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  #7  
Old 09-07-2010, 12:40 PM
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Default Re: Starting/Cut Out Problem

Quote:
Originally Posted by FireRanger View Post
Sounds like a lack of fuel. Replacing the fuel filter would be a good start, then check fuel pressure if it still does it. If fuel pressure sucks, there is a regulator that could be bad or the pump is shot.
Ok i get your idea. When i first bought the truck from the used dealer i did a tune up on it. Including the fuel filter. So i know for sure it cant be that. How would i go about checking the fuel pressure?
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  #8  
Old 11-05-2010, 07:01 AM
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Default Re: Starting/Cut Out Problem

Hey all, my 2002 3.0 ranger has very similar problem, doesn't want to accelerate over 4000 rpm (misfires or dies until you let off the gas). I have changed coil pack (after testing resistances), spark plugs and wires, cleaned mass air flow sensor, air filter, and fuel filter. My fuel pressure reads 65psi at idle and have 180psi compression in all cylinders. I have heard that bad electrical connectors could be the culprit, so today i will try running the truck and just wiggling all appropriate wires (in ignition system). Sure can't wait till someone figures this out! I'll let you know if I find the problem.
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  #9  
Old 11-05-2010, 01:28 PM
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Default Re: Starting/Cut Out Problem

Quote:
Originally Posted by MacRanger View Post
Hey all, my 2002 3.0 ranger has very similar problem, doesn't want to accelerate over 4000 rpm (misfires or dies until you let off the gas). I have changed coil pack (after testing resistances), spark plugs and wires, cleaned mass air flow sensor, air filter, and fuel filter. My fuel pressure reads 65psi at idle and have 180psi compression in all cylinders. I have heard that bad electrical connectors could be the culprit, so today i will try running the truck and just wiggling all appropriate wires (in ignition system). Sure can't wait till someone figures this out! I'll let you know if I find the problem.
auto or 5 speed?
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  #10  
Old 11-06-2010, 08:44 PM
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Default Re: Starting/Cut Out Problem

5 speed manual. Loses power at 4000 rpm in 2nd or 3rd, but more like 3750 rpm in 4th gear.
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  #11  
Old 01-14-2011, 04:24 PM
03' Edge 4.0
 
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Default Re: Starting/Cut Out Problem

I have the 03' and have the same problem. At about 3500 rpm, the engine cuts-out hard, causing the entire vehicle to jump. THought I had a tranmission problem, but the tranny shop said the engine was cutting out. My mechanic had no ideas. ... looking for a new mechanic now I serached the web and found a couple of reports of similar problems linked to a bad cam sensor and syncronizer. the pcm stops reading the cam senser over 2500 rpm So if the sensor goes bad you won't get a check engine light because it isnt being read. I haven't checked into this more but I am going to crack the Hanes manual this evening and see what I can learn.
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  #12  
Old 01-17-2011, 08:47 AM
03' Edge 4.0
 
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Default Re: Starting/Cut Out Problem

Found the fuel filter was clogging at RPM. FireRanger was on the money with that call. Replacing the filter, then seeing if the problem is corrected.
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  #13  
Old 01-17-2011, 09:45 AM
03' Edge 4.0
 
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Default Re: Starting/Cut Out Problem

Replaced the fuel filter and problem still exists. Diagnosis at dealership is the Cam position sensor and syncronizer. This CPS has a history of failure on the Rangers. Once that is replaced I will let the community know if problem is resolved. Seems like others are expierinacing similar engine cut-out at 3-4K RPM.
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  #14  
Old 01-17-2011, 10:14 AM
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Default Re: Starting/Cut Out Problem

Another thing you may want to check is your coil pack. When I had my dealership that was the most common issue. The coil packs get wet from engine washing or underbody splashes and will crack (good ol' plastic). Lots of times the problem would pass through diagnostics scans and to the eye the pack would look fine.
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  #15  
Old 01-18-2011, 09:40 AM
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Default Re: Starting/Cut Out Problem

Yeah about 2 months ago i went through the same ordeal (as you can see from my previous post). Changed fuel filter, found a crack in my coil pack and replaced it, checked for vacuum leaks, cleaned maf sensor... I was going crazy. The took it to a dealer and they diagnosed faulty sychronizer. Replaced the unit myself and have full range of acceleration again. Be sure you by the motorcraft replacement, it's too important a component to have a cheap one fail on you. Hope this helps.
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Last edited by MacRanger; 01-20-2011 at 06:53 AM.
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