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  #1  
Old 11-22-2010, 06:15 PM
guyguy88 guyguy88 is offline
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Default Long Time Ranger Owner

Hello everyone, I bought my 93 Ranger and it currently has 265,000 miles. It is a super cab with a 4.0. I'm new to this site and hopefully can get some assistance in a problem I am having with mine.
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  #2  
Old 11-22-2010, 06:15 PM
STL STL is offline
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Default Re: Long Time Ranger Owner

Welcome to FRF
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  #3  
Old 11-22-2010, 06:17 PM
mazdab2300 mazdab2300 is offline
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Default Re: Long Time Ranger Owner

welcome to frf what is the problem
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  #4  
Old 11-22-2010, 06:22 PM
guyguy88 guyguy88 is offline
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Default Re: Long Time Ranger Owner

My 93 Ranger 4.0 idles very rough, and runs like it is on about 4 cylinders. Long as it is 3/4 to full throttle it seems to run fairly decent. If cruising at steady speed it bucks and jerks as if cutting in and out. Replaced catalytic converter, coil pack, plugs & wires, TP sensor , fuel filter. If I unplug one of the vacuum line on the throttle body the rpm's pick up and it smooths out somewhat. Even when running as it does, after engine gets to temp it will then not restart until it cools. Turns over as if not firing at all. new plugs are carboned up really bad already. had someone suggest crank sensor or ICM, but I can't just keep replacing parts. I'm here for your help please!!
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Old 11-22-2010, 06:26 PM
richarddhoward richarddhoward is offline
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Default Re: Long Time Ranger Owner

Quote:
Originally Posted by guyguy88 View Post
My 93 Ranger 4.0 idles very rough, and runs like it is on about 4 cylinders. Long as it is 3/4 to full throttle it seems to run fairly decent. If cruising at steady speed it bucks and jerks as if cutting in and out. Replaced catalytic converter, coil pack, plugs & wires, TP sensor , fuel filter. If I unplug one of the vacuum line on the throttle body the rpm's pick up and it smooths out somewhat. Even when running as it does, after engine gets to temp it will then not restart until it cools. Turns over as if not firing at all. new plugs are carboned up really bad already. had someone suggest crank sensor or ICM, but I can't just keep replacing parts. I'm here for your help please!!
Welcome to the FRF from the Travelin' PNW Crewman

Sounds more like an EGR valve to me, or a HUGE vacuum leak, check your vacuum lines, they tend to crack and break over time
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97 Ranger - 4.0 V6 auto, 4wd, 31x10.5x15s Wild Country XTX Sport All Terrains, Warn locking hubs, Pioneer deck with iPod attachment, Snugtop Topper, K&N filter, scan gauge II, Hella 500 Lights, More parts coming, waiting for the paycheck to get bigger!

Truck built in loving memory of Norm Howard
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I think Henry just shit himself
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Originally Posted by Radness View Post
Its kind of like that carnival game "Whack A Mole" but with guns! Haha
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  #6  
Old 11-22-2010, 06:36 PM
guyguy88 guyguy88 is offline
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Default Re: Long Time Ranger Owner

I have checked all the vacuum lines, neighbor even sprayed a carb cleaner around trying to detect a vacuum leak with change in rpm's, but no changes unless line is pulled lose to create vacuum leak. So you think possible EGR?
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  #7  
Old 11-22-2010, 06:38 PM
richarddhoward richarddhoward is offline
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Default Re: Long Time Ranger Owner

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Originally Posted by guyguy88 View Post
I have checked all the vacuum lines, neighbor even sprayed a carb cleaner around trying to detect a vacuum leak with change in rpm's, but no changes unless line is pulled lose to create vacuum leak. So you think possible EGR?
Tis possible, although not 100 percent certain, also a PCV valve could be suspect. How about your air filter, how's it look?
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97 Ranger - 4.0 V6 auto, 4wd, 31x10.5x15s Wild Country XTX Sport All Terrains, Warn locking hubs, Pioneer deck with iPod attachment, Snugtop Topper, K&N filter, scan gauge II, Hella 500 Lights, More parts coming, waiting for the paycheck to get bigger!

Truck built in loving memory of Norm Howard
Outcast Racing
PNW Crew!!!
Afterhours Clan!!
Quote:
Originally Posted by aaron_ariens View Post
I think Henry just shit himself
Quote:
Originally Posted by Radness View Post
Its kind of like that carnival game "Whack A Mole" but with guns! Haha
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  #8  
Old 11-22-2010, 06:41 PM
guyguy88 guyguy88 is offline
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Default Re: Long Time Ranger Owner

Air filter is just couple months old and PCV is a bit older, but I can remove it with no changes noted.
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  #9  
Old 11-22-2010, 06:46 PM
Clinton Clinton is offline
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Default Re: Long Time Ranger Owner

Welcome
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  #10  
Old 11-22-2010, 06:48 PM
guyguy88 guyguy88 is offline
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Default Re: Long Time Ranger Owner

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Welcome
Thanks!!
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  #11  
Old 11-22-2010, 06:53 PM
02maz 02maz is offline
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Default Re: Long Time Ranger Owner

Welcome to FRF!
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  #12  
Old 11-22-2010, 06:54 PM
guyguy88 guyguy88 is offline
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Default Re: Long Time Ranger Owner

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Welcome to FRF!
Thank you!
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  #13  
Old 11-22-2010, 06:57 PM
richarddhoward richarddhoward is offline
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Default Re: Long Time Ranger Owner

Quote:
Originally Posted by guyguy88 View Post
Air filter is just couple months old and PCV is a bit older, but I can remove it with no changes noted.
It may have to do with the diaphram for your fuel regulator then. Your fuel regulator diaphram dies it can cause this. I'd start there. Been working with diesels a lot lately. Gotta remember the auto side lol
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97 Ranger - 4.0 V6 auto, 4wd, 31x10.5x15s Wild Country XTX Sport All Terrains, Warn locking hubs, Pioneer deck with iPod attachment, Snugtop Topper, K&N filter, scan gauge II, Hella 500 Lights, More parts coming, waiting for the paycheck to get bigger!

Truck built in loving memory of Norm Howard
Outcast Racing
PNW Crew!!!
Afterhours Clan!!
Quote:
Originally Posted by aaron_ariens View Post
I think Henry just shit himself
Quote:
Originally Posted by Radness View Post
Its kind of like that carnival game "Whack A Mole" but with guns! Haha
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  #14  
Old 11-22-2010, 07:40 PM
2002 2WD Edge 2002 2WD Edge is offline
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Default Re: Long Time Ranger Owner

Some people swear by blocking off the EGR valve...some warn against that. Just searched and saw about an equal number of both. A possible cheap fix. Have you had a code reader used yet? It might show something useful. EGR valves can fail/stick when the vehicle isn't too old. For sure you don't want to keep replacing things..likely have replaced a few already to no good effect. Code reader...and Google lots on the EGR including blocking/bypassing it. It's simpler to block it with a BB than bypass it. (yes BB as in BB gun)
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  #15  
Old 11-23-2010, 12:30 AM
TerrenceStuart TerrenceStuart is offline
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Default Re: Long Time Ranger Owner

welcome to FRF, Guy!
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some kind of vehicle.
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