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  #1  
Old 05-23-2009, 07:51 PM
Bryan_leonard Bryan_leonard is offline
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Default 2.3 missing

I have an 03 2.3 and today at the redlight the check engine light came on and started to miss really bad. got it to autozone and changed plugs and wires in the parking lot but still missing. not no where as bad as it was before the plug change but still pretty bad. but when i get in a higher rpm it does better and doesn't seem to miss anymore. i need help. can't figure what it can be.
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  #2  
Old 05-27-2009, 02:50 PM
tippy tippy is offline
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I just replaced the coil in mine with a similar problem. i pulled the wire off the 1st plug and the engine sounded the same as before. that is how i identified it. i would have kept going down the line if that had made it change.
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  #3  
Old 06-03-2009, 06:00 AM
bwheeler bwheeler is offline
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I am having the same issue on my '01 2.3L. Although it sounds not quite as bad. Replaced the plugs and wires as well. Still, intermittently, one of the cylinders isn't firing (mainly at cruising 2,000-2,500 rpm). You can actually feel the extra power when it kicks in and out.

After a little research - my car might have 8 plugs. Anyone have a link on how to replace the other '4'?

How do you identify which cylinder? Could it be a bad distributor?

Hard part is - it only does it sometimes, so it would be hard to identify which one by pulling the plugs one at a time.

Thank you,

Brandon

Last edited by bwheeler; 06-03-2009 at 03:17 PM.
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  #4  
Old 06-03-2009, 07:57 PM
Sky King Sky King is offline
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I've had this issue with my 1991 2.3 (8 plugs) for years. Usually when the check engine light comes on, I replace the plugs and it goes out for good and my mileage returns to normal. I've replaced both coil packs and wires and it still does it quite often. The only thing I have not replaced is this little electronic wafer box (white square) mounted on the intake manifold. This may be the problem for me or it may be the computer. On the 1991, the computer system does not do a good job of telling you what is wrong. My truck was missing badly and I put the computer on it and it said everything was fine even though the motor was about to jump out of the truck. After a few minutes, the engine got happy again and ran fine.

This has been going on with my truck for years and...it has never killed out completly always corrects itself after a couple of minutes. I've talk to allot of mechanics about this and no one can figure it out and...I'll never bring it to the dealer.

Now...maybe one of you guys can help me. I've never, in 18 years been able to find my PCV valve to replace it. This may be my issue. Who knows ? Where is it ?

Take Care,
Gene
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  #5  
Old 06-08-2009, 07:36 AM
Bryan_leonard Bryan_leonard is offline
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is your check engine light on bwheeler?
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  #6  
Old 06-08-2009, 07:40 AM
Bryan_leonard Bryan_leonard is offline
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Quote:
Originally Posted by Sky King View Post
I've had this issue with my 1991 2.3 (8 plugs) for years. Usually when the check engine light comes on, I replace the plugs and it goes out for good and my mileage returns to normal. I've replaced both coil packs and wires and it still does it quite often. The only thing I have not replaced is this little electronic wafer box (white square) mounted on the intake manifold. This may be the problem for me or it may be the computer. On the 1991, the computer system does not do a good job of telling you what is wrong. My truck was missing badly and I put the computer on it and it said everything was fine even though the motor was about to jump out of the truck. After a few minutes, the engine got happy again and ran fine.

This has been going on with my truck for years and...it has never killed out completly always corrects itself after a couple of minutes. I've talk to allot of mechanics about this and no one can figure it out and...I'll never bring it to the dealer.

Now...maybe one of you guys can help me. I've never, in 18 years been able to find my PCV valve to replace it. This may be my issue. Who knows ? Where is it ?

Take Care,
Gene
you need to get a Chilton's book. It will tell you how to do everything, and show you where things are at...
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  #7  
Old 06-10-2009, 09:04 AM
Sky King Sky King is offline
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Quote:
Originally Posted by Bryan_leonard View Post
you need to get a Chilton's book. It will tell you how to do everything, and show you where things are at...
That would be cheating. Besides that's what forums are for. ha ha.

Thanks,
Gene
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Gene
1991 Ranger, 2.3L (400K miles)
2000 Ranger, 3.0L (280K miles)
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  #8  
Old 02-07-2010, 06:52 AM
WALBERS53@YAHOO.COM WALBERS53@YAHOO.COM is offline
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Advanced auto will check sevice enginge light codes
then you need to check sensors or mechanical parts
replace parts that are out of range according to the tests.
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  #9  
Old 02-09-2010, 12:59 PM
fatapia fatapia is offline
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I'm new to the forums so if im little to no help sorry =/

I had that problem to, i have an 03 2.3l ranger(manual) and it started misfiring BAD but when i was in 4-6 rpms no problem at all. what the solution ended up being for me was actually changing the oil. idk why or how but that was it. I checked my plugs, replaced the wires and the problem persisted until the oil was changed.
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  #10  
Old 02-09-2010, 05:40 PM
cwc ranger cwc ranger is offline
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ok here are some problems

-the plugs are shot (easy fix)
-you have a leaking head gasket (happend to my 3.0 and i ignored the problem and i blew up my engine)
-timing chain/belt is stretched so its not lining up (not so easy but not too bad)
-coil pack/distributer is junk (easy fix)
-wires are no good (easy fix)
-injectors are no good or dirty (easy fix get injector cleaner)

also hook it up to a computer and get the codes that its reading and figure out whats wrong useually if all your stuff is in working order ie the wires, coil pack/distributer, plugs, injectors, etc then its your timing chain/belt if you have a belt i would be willing to bet that its the problem, and be sure to check your head gaskets cause if they are leaking or not sealing right thats a problem but yet not a bad fix just be sure to machine out your head if you take it off and put a new seal on.

Hope that helps i apologize for the novel
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R.I.P. 1999 Ranger XLT 3.0, 206,000 stock drivetrain
-Totaled after accident 2009.10.30 with brand new engine and tranny

1998 Ranger XLT 4X4 4.0, 200,xxx stock drivetrain
-Still running like a champ
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  #11  
Old 02-14-2010, 05:31 PM
kschaffner kschaffner is offline
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I recently had something to this effect happen to my truck. I was driving home truck was working great but misses badly at a stop light but works fine while moving. On the front of the intake manifold there is supposed to be a rubber cover for a butterfly rod so excess air doesn't come into cylinder 1. A dime fits perfectly in this spot and I covered it up with some epoxy. Might be worth checking out.

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