Ford Ranger / B-Series :: 2002 - Cylinder 2 Misfire Code / Idle Rough When Warms Up
Mar 10, 2013
I bought this from my brother in better than mint condition. Always maintained. Its generating a cyl #2 misfire code.
It starts and runs like new when cold, but when it warms up, it idles rough, and generates the code. after 1500 rpm it smooths right out and runs fine.
He had it to the dealer just before I bought it and they told him needed a new engine.
I am thinking bad injector, since what seems to be happening is, when cold it gets more fuel, or when u rev it gets more fuel, but at an idle and warm, it doesn't seem to be getting enough maybe. And I see from the maintenance records, a couple of other injectors have been replaced as well.
I think the dealer got tired of replacing injectors under warranty and tried to milk him for a new engine.
2002 ranger extended cab 2wd, 3 door, 232,000 kms 5 speed 3 liter V6, new glass and clutch..
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I have a 2002 ford ranger xlt 3.0 i just rebuilt the entire motor about a month ago and was having a high idle problem for the longest time. turns out i had the iac on backwards. but now that it idles down around where its supposed to it has a rough idle has a little shake to it. starts up right away but when i drive down the road around 3000-3500 rpms its missing on cylinder #3 from what the code I am getting "multiple cylinder misfire, #3 cylinder misfire" I've replaced plugs and wires. camshaft pos sensor. I am getting 65 lbs of fuel pressure. spark on all cylinders. I am really at a dead end here. Also every time I take the plugs out to look at them they look brand new.
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So I have a 2001 ranger 2.3l . Runs very rough at idle.code says misfire in cyl.#1. I have changed plugs, wires, coil packs all motocraft. I did a compression test..
#1.170
#2 180
#3. 185
#4 . 180
Compression seems fine,but where do i go from here? Anything else i can check/replace to solve this?
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2000 4.2....Last year I had to replace the coil pack when it started running rough and had a code for a misfire on cylinder 3. It is doing the exact same thing now, same code, same cylinder. Is there something wrong that is causing this?
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I have an 02 ranger xlt 3.0, it started having a rough idle, codes say cylinder #2&3 misfiring, changed plugs, wires, coil pack, didn't work, still same code, checked injectors on right side, all 3 had ohm reading of 15.8-16.5, the injectors were clicking like they are supposed to, sprayed carb cleaner around the intake ports, didn't change the idle at all,what else can I check or do? with out tearing the engine apart, unless of course I have to, the truck has been very good to me, it's got 205,000 miles on it, I need it to last at least another year...
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I have a 2003 Ranger edge 3.0 flex fuel 183,000 miles. I have been having a misfire problem, only at idle, always cylinder 3. Replaced the fuel filter. Just replaced fuel pump assembly. With the old pump my fuel pressure was 49psi key on engine off, and running at idle it was 59psi with a shaky needle. With the new pump, when I turn the key on it jumps to 60psi then imedietly drops to 49psi, when the pump shuts off. Running it is at 60psi with steady needle. Koeo the pressure holds good at 49psi but does slowy decrease, about 5psi in 15 minutes. What would be causing the pressure to drop to 49psi? I am checking pressure at the fuel rail. Pressure according to the haynes manual should be 60-65psi koeo and the same while running at idle.
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I have a 1999 ford ranger 3.0 6 cyl with 211,110 miles It started running rough without any previous warning signs. In idle its barely noticeable, once i put it in gear it gets rougher and when driving around 40 to 45 mph it roughly shakes and shimmies. Once I get past the 40 to 45 mph range it settles back down. Is there a specific issue that would cause that at that speed. When going up over a bridge the check engine light blinks.
I changed the spark plugs and new wires and it offered no success even though one of the plugs were black (to much gas). I have borrowed a diagnostic tool and got P0305 cylinder 5 misfire, I am thinking fuel injector to replace, what else should I be looking at?
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1999 ranger 155k 3.0 flex fuel. 304 is misfire in cyl number 4... I replaced the plugs and wires and checked the coil. the compression in cyl 2, 4, 5, 6 and got 80-90 psi so they are consistent but consistently bad right, it may be my compression tester.
The #4 plug was spotless after running 5 min, the #5 plug had some black on it already. Its hard to tell but it seems I had fuel residue on the plugs on cyl 5 and 6 but none on 4? Whats next pulling the intake to get to the injector?
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I have a 1995 ford ranger 2.3 L dual coil packs new plugs, wires, coil packs, tps, idle air sensor, internal temp sensor, and a replaced mass air flow sensor from wrecker. That all said my one son missed a plug when i replaced it , it had no tip left on it , but since then i now have a misfire in cylinder 2 where the olther plug was found and replaced ...
Gap for plugs are .44
Used the wrecker maf to see if it would clear a p0113 which it did. I am stumped on why at approx. 30 minutes of driving that the cel will flash then set a p0302, no other codes no fuel smell. rechecked plugs all are clean haven't been able to check fuel pressure yet, and i out a can of seafoam in the tank to see if it clear out injectors.
Besides all, I will check injector to see if I hear anything but I'm stumped. Also we have to have an emission test so is it best to fail the test and will it show me what I'm missing.
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I have a 2003 ranger and have had ongoing problems with misfire cylinder six and have had three different mechanics diagnose the problem as a bad ground. I have replaced all plugs, wires, coil pack, injectors and am constantly pulling the plug on cylinder six, cleaning and often replacing, I also disconnect the battery so it resets the check engine light and it runs fine for about 100 miles and starts running rough again and on goes the check engine light. I have 134000 miles and have maintained it since new.....
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Got a 1996 Ford Ranger with the 4.0L in it that has a misfire on the #3 cylinder and giving check engine code: P303. Have tried new plugs, wires, distributor, switching out the coil pack with a known good, checked injectors for pulse, checked injectors, moved injectors and still the misfire remains on #3. Removed the valve covers and all appears to be well.
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I recently bought a 00 Excursion v10 2wd everything looked right no major problems. I noticed it has a rough idle and i thought it could be the EGR i went under the hood and there's no EGR in sight. I plugged the OBD reader to see if it would give any codes since the there was no check engine light on and wanted wanted to make sure it worked, It showed a P0304 code its Cyl4 misfire i checked plugs/coils and i noticed there's a little insert inside Cyl4 plugs hole in the head that it has the plug screwed on. I decided to change all the plugs and the coils and i still have the rough idle and code i can hear a ticking noise around the engine in the passenger side.
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I just bought a 99 Ranger 3.0 L. Truck runs great while cold. After it warms up however it has a misfire. I knew that when I bought it, and bought it cheap enough that I figured even if its down on compression or something serious, I could afford to throw a long block in it. It also is throwing a check engine light. I have not read the codes yet, waiting on a scanner I purchased. Ive got new plugs and wires for it, not yet installed. Also, have not checked compression yet. Been too busy to work on it much so far. Just curious if there is anything I can look at before the new scanner arrives.
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Misfire is on #6. Feels like a partial miss, not every revolution, and there's no noticeable miss while cruising or holding a higher rpm in neutral. It's a B3000 with 97k miles. New Motorcraft plugs, new wires, 10.7k ohms across coil terminals (1-5, 2-6, 3-4).
I've swapped plug wires between cylinders and side-to-side on the coil. I also sprayed MAF cleaner all around the intake looking for a leaky gasket. I feel pretty confident I'm looking at a bad/dirty injector or valve issue. I plan on doing a compression test next and hopefully nail it down to one or the other.
I'm asking for input on my diagnosis so far. And how difficult is it to replace the injector? Will I need to remove the upper intake?
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I have a 3.0 Ranger, AT 2WD, from 2001 with 175K miles on it. I have a CEL on, with Misfire cylinder #5.
Also when the truck is cold and I step on the gas, it seems to run on like 3 cylinder for 2-3seconds and then it somehow fixes itself and runs great until it warms up.
After it warms up, it shakes violently at idle. The shaking goes completely away once I'm past 1200 rpm or while driving. What I tried so far:
- All new Motorcraft filters (Air, fuel)
- Motorcraft Plugs
- Motorcraft Wires
- Motorcraft Coil
- Ran thru two cans of SeaFoam
- Checked injector resistance
- "Reset" the ECU
- Cleaned MAF sensor
- Cleaned IAC
What else I need to check?
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Steam out the tail pipe, misfire codes, rough idle. No water in oil, no over heating. Head gasket ??
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My friend has a 2003 Toyota Echo that is throwing a cylinder misfire code. Original code is P0302 and P0302PD. The car is idling rougher, kind of sounds like "put-put-put". Also, the car has no power at all. He lives on a hill and he can't even pull out of his driveway. Lastly, the smell of the exhaust is gassy.
We have changed out the spark plugs...no change. Next, we bought a new ignition coil for the number two cylinder...no change. So, maybe its the wiring. Put the new coil onto the number 3 cylinder and the number 3 coil onto the 2 cylinder. Low and behold, the misfire code changes to P0303 and P0303PD.
Thinking we might have gotten a dud of a coil, we bought another. Same thing...new coil on 2 code is P0302...new coil on 3, code is P0303. Could we just have gotten two bad coils? Oh, coils were a BWD brand coil and Duralast brand. Should we just go OEM from dealer? OR Denso from Advance Auto?
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I have a 2006 Ford Ranger with the 3.0L v6. The check engine light came on and the code it is blowing is a P0171. It runs rough at idle or when I let off the accelerator and "fine" at speed.
The code told me to check/clean the MAF which I have done. Next on the list that I saw was the PCV valve. I disconnected the electrical to it and then disconnected the hose. Some oil poured out of it... not a lot but some... The valve still seems free, it clicks when I rotate/shake it and I can blow through it (I know, highly scientific). I can replace this (if I can find it, Napa and Advanced Auto don't have a part that looks like it...) but I'm wondering what else could be wrong.
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Quick back story I bought a 1999 Ford Ranger It is a 4 cyl with an auto trans the guy said it had some trouble with the tranny (major understatement) he also forgot to mention he cut out the CAT. so running a 4 banger off the header.
When you start the truck it rough idles but you have to hold the gas down til it warms up. You can shift into reverse but it labors the motor and the motor will not up the rpms kinda stays at idle and wants to die no matter how hard you accelerate and you can't move up a slight incline.
When you shift into drive you have to rev the motor to 3 grand an it will catch then move slowly forward. no matter how high the revs go. The fluid levels are a tad above the full level and a bit dark for my liking.
Ok, I used an OBDII scan tool from the parts store and it came up with 3 codes P0351, P0352, P0500. From my internet search the first two seem to be coil related which explains why the motor is running like garbage. The last may or may not have to do with what the tranny is doing.
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2001 Ford Ranger 4.0L V6... Okay so I bought my truck last September with 100K on it. Ran perfectly fine. No problems for for the first two months and then it started to misfire when at idle. Check Engine Light came on. Scanned and got a random multiple misfire code. I then changed the plugs and wires. Had to repair the threads for cylinder two. Did all that and it kind of but not really solved the problem. A few weeks later got another check engine light. Cylinder 3 misfire. Changed ignition coil. No better. Shortly thereafter I checked again whilst at work and read misfire on 3 and now 2. Currently replacing the intake manifold o-rings and cleaning out intake.
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This has been an issue for about 8 months now. I'm getting a misfire on cylinder 4. So far compression test, new gas filter, fuel injectors cleaned, spark plugs and wires replaced. coil pack replaced. Heater valve was leaking but was replaced.
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