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  #1  
Old 06-11-2011, 11:35 AM
clrogers clrogers is offline
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Default 1996 Ranger 2.3l misfire

Coming home from work the other day when it was 97' out my Ranger developed a misfire. It ran real rough & was down on power. I managed to nurse it home & did a quick scan that said there was a misfire in #2 cylinder. I pulled the plug & wire, both looked good (only 4 months old) so I switched a couple around, no difference. I finally was able to do a compression check today & they are all a nice even 135 to 140 across the board so I'm ruling out a burnt valve. The only other thing I can think of is a bad coil pack that was affected by the extreme heat, am I just fishing here or has anybody else had the same experience & how did you fix it?
Thanks

chuck
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  #2  
Old 06-11-2011, 02:10 PM
mehdi1993 mehdi1993 is offline
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Default Re: 1996 Ranger 2.3l misfire

im having the same problem with my 3.0 right now...i changed the plugs and wires and that didnt help, got a new coil pack and that didnt help either. i dont know what it is, but im curious to find out
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  #3  
Old 06-11-2011, 02:52 PM
clrogers clrogers is offline
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Default Re: 1996 Ranger 2.3l misfire

Well it isn't the coil pack, I just finished replacing that one with a new one & it still misses. The problem I had with it possibly being a coil pack was the fact that I still had spark coming out of that spark plug wire that would knock a horse down but it didn't have enough power to pull a sick old lady off a toilet, I should have turned my attention to the fuel injectors before I replaced the coil pack first but other than taking them out & looking at them I have no way of testing them. Has anybody tried going up to the next size larger injector & if so did it mess up the MPG?
Thanks mehdi1993, I'll let you know if the injector was the problem.

chuck
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  #4  
Old 06-14-2011, 06:52 PM
joeaguilar joeaguilar is offline
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Default Re: 1996 Ranger 2.3l misfire

Check your crank sensor. I had the same problem on my 97 2.3. I went thru the same freaking routine! Try that befor you get to your injectors. Worth a try!
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  #5  
Old 06-14-2011, 07:15 PM
clrogers clrogers is offline
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Default Re: 1996 Ranger 2.3l misfire

joeaguilar

Would the crank sensor cause just 1 cylinder to misfire? I will give it a shot before I spend anymore money tho.
Thanks

chuck
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  #6  
Old 06-15-2011, 05:13 PM
joeaguilar joeaguilar is offline
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Default Re: 1996 Ranger 2.3l misfire

I don't know if it would cause just on perticular cylinder, but it will cause the engine to missfire. My truck would run good for about 20 to 30 min then start missing! At idle it was smooth untill I took off. It's only about $20 and pretty easy to install. let me know how it goes good luck.
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  #7  
Old 06-17-2011, 01:16 PM
clrogers clrogers is offline
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Default Re: 1996 Ranger 2.3l misfire

OK, end of story. I took the 4 injectors to a shop that has a machine that can check & flush injectors. They tested all 4 but found 1 that didn't respond electrically or mechanically. I checked with a few parts houses including the Ford garage but nobody had an injector in stock (1 to 3 days out) at $75 to $95. So I went to our nearest wrecking yard & within 15 minutes had another 1996 2.3l injector in hand for $10 which I also had tested & it tested good. Got back home, installed the injectors & got the Ranger back together. Runs fine now. From what everybody told me I would never have figured on a bad injector but this was one of those rare times. Thanks for the help & ideas.

chuck
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  #8  
Old 06-18-2011, 05:57 PM
modelageek modelageek is offline
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Default Re: 1996 Ranger 2.3l misfire

Quote:
Originally Posted by clrogers View Post
Coming home from work the other day when it was 97' out my Ranger developed a misfire. It ran real rough & was down on power. I managed to nurse it home & did a quick scan that said there was a misfire in #2 cylinder. I pulled the plug & wire, both looked good (only 4 months old) so I switched a couple around, no difference. I finally was able to do a compression check today & they are all a nice even 135 to 140 across the board so I'm ruling out a burnt valve. The only other thing I can think of is a bad coil pack that was affected by the extreme heat, am I just fishing here or has anybody else had the same experience & how did you fix it?
Thanks

chuck
definitely could be a coil pack...you can swap the coilpacks and if the truck runs differently then that is the issue...........did you pull both plugs out for the #2 cylinder
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  #9  
Old 06-18-2011, 06:10 PM
clrogers clrogers is offline
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Default Re: 1996 Ranger 2.3l misfire

Replacing the #2 injector took care of the problem, yeehaa.

chuck
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  #10  
Old 12-03-2012, 07:17 AM
PetesPonies PetesPonies is offline
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Default Re: 1996 Ranger 2.3l misfire

I know this problem was solved, congrats. However, it could not have a been a coil pack. I want to straighten this out. A coil pack fires two plugs, either cylinders 1 & 4 or 2 & 3 at the same time. One is a wasted spark. This has nothing to do with the fact that these engines have 8 plugs and two sets of coil packs. In either case, a coil fires 2 cylinders. If you have one cylinder miss firing, it cannot be the coil pack. You would need two cylinders misfiring. I hope this clears up things for future people searching for answers.
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