2003 Ranger (4.0 L-2wd)...
Codes - random misfire and cylinder banks 1, 2, 3, reads out lean fuel
Will be checking out injectors and rail pressure, however, trouble shooting in general for this issue.
I have a 99 ford ranger xlt 4.0 ohv basically it sputters so bad while driving it sounds like a dump truck but it all started when I changed my o2 sensors but in doing so I broke my heater control valve and when I was going down the road it started sputtering well it started sputtering so I checked the o2 sensors there good and I changed the heater control valve. But nothing so I changed my coil pack spark plugs and wires but still nothing. But on my reader it says cylinders 2,3, and 4 are misfiring and bank 1 and 2 are running lean plus it has a bad aroma of gas in the engine compartment but when it idles its somewhat smooth but when I'm driving it its horrible the sputtering is so bad it takes awhile to get up to speed plus I'm only getting 100 miles to a whole tank that's like 8 or 9 mpg I need to fix this soon. This is my only transportation...
View 11 RepliesThe other day I was driving down the road on a long, flat section and all of a sudden my truck started missing out of the blue. Ever since it started missing it hasn't stopped. The truck is an '89 Ranger, 2.3l, 5 spd. The plugs and wires were replaced last year along with the timing belt and fuel pump. It has been running great since then until now. I thought maybe it might be a clogged fuel filter so I replaced that but it didn't work. Also, it doesn't miss all the time. It doesn't miss when its idling or if you are going down the road while it is missing and slowly release the gas pedal it reaches a point while you are letting the pedal up where it will even out. It definitely seems like it is an "under load missing" scenario. Also, the Check Engine Light is not on. Where should I start looking?
View 4 Replies2003 f150 supercrew with 166,000 miles on it. Daily driver. Service light randomly comes on and when code reader was put to it shows "left bank running lean." Will clear it and will randomly come back on. Truck seems to be running fine. No issues engine. Bad sensor? Or bad injector? Maybe way to test?
View 1 RepliesI've got a 2003 Ranger 2.3L DOHC, 5 speed, 2WD. It has a check engine light with codes :
P0316-Engine Misfire Detected On Startup
P0704-Clutch Switch Input Circuit Fault
P2195-O2 Sensor Excess Lean Signal Bank 1-Sensor 1
P0171-System Too Lean (Bank 1)
The truck runs fine when coasting or accelerating but when holding a steady light throttle to maintain speed the truck starts bucking and jerking. It's doesn't feel like a misfire, more like a fuel cut out condition. When this happens and you come to a stop, you can smell that the exhaust is very rich coming out of the tailpipe. I've already replaced the upstream O2 sensor and I did a tune up about 15k ago. I'm thinking fuel pump or fuel pressure regulator. I doubt if this is related, but on start up (more so on a cold start up) the A/C compressor clutch kicks in and out 3-5 times and makes a terrible racket.
I have a 2003 ford ranger edge with the 3.0l engine. It started acting up today so i brought it to get checked because the check engine light came on. Three codes where pulled p0300, p0306, and p0313. They were multiple/random cylinders misfiring, cylinder 6 misfire, and first misfire at 1000 rpm. I have replaced the plugs and coil and still have the trouble.
View 5 RepliesI've been fighting some issues with the truck and decided to do a compression test to decide if I want to try to keep 'Old Yeller' alive or not. I'm all for working on it until I have to dig into the lower end of the motor. I rented a compression tool and the results were a little shocking. I did this test with a slightly warm motor, fuel pump relay pulled, all spark plugs pulled and throttle @ 100 %. Motor turned over 10 times for each cylinder. I even moved all the rubber o-rings on the tool up on the threads to make sure I was getting a good seal.
Cyl 1 - 40
Cyl 2 - 0
Cyl 3 - 0
Cyl 4 - 80
Cyl 5 - 0
Cyl 6 - 60
Needless to say I didn't even bother doing this wet. My only real question is can this be close to accurate. I drive the truck daily. 160k mi on it.
I'm fighting the dreadful P0171 and P0174 codes and after a couple cycles I will get misfire codes. Its low on power (hard to keep @ 70MPH with some wind) and gets 10MPG right now. However it starts and runs and stays consistent (even though it rumbles like it has a nice cam in it).
Is it time to put Old Yeller down ? Are these compression results even remotely accurate ?
My 2001 V6 Ford Ranger Edge has 124, 000 miles and always ran very well, Shortly after a minimal attempt to pull a vehicle out of a ditch the vehicle began to run poorly. This may be coincidental as problem did not begin straight away. The engine refused to start at first but now appears to run on 2 or 3 cylinders. I have checked AND CONFIRMED the following:
Spark at all cylinders
Fuel filter replaced
Fuel pump checked
Fuel pressure 56 psi at schrader valve on fuel rail
Fuel inertia cut off valve checked
E_Z start sprayed in feed horn did nothing
I hope to avoid towing it to the dealer,as I recently had a very negative experience doing this with the Honda dealer..
1998 ford ranger 4.0 ... fuel running lean ... how do you adjust it??
View 3 Replies]I recently bought a 1990 ford ranger with a 2.9 @187,000 miles. That being said I went through and changed a few vacuum lines, the oil, air filter, pcv/grommet, and fuel filter.
The problem is it hates to start. I could crank on it for 10 seconds and not a single thing. Sometimes if i turn the key to the off position, wait a second, and try again, Ill get the truck to fire. When it does fire up it just reeks of the lean exhaust. It also gives me some hesitation when I rev it. I did a fuel pressure test (KOEO) last night and it gave me 32 psi and within a minute the needle fell to about 25 psi. I hear the fuel pump run for only 2-3 seconds too.
I've already pulled the MAF off and cleaned it, replaced the TPS, and did a fuel pressure test. The fuel filter is brand new
I just finished rebuilding my 1990 2.9 and it wouldn't start. When we did the initial start up, the truck needed ether to start and ran decently while stumbling. I found out that the spout connector was removed from the previous owner so I spliced it but still no starting ...
I installed a new fuel filter, fuel pump, cleaned the injectors, spark plugs, spark plug wires, distributor cap, rotor, air filter and cleaned the MAF. ..
Its not a spark problem because I'm getting good spark from all the cylinders and yes the timing was set correctly. It sounds like it wants to start but just doesn't have something to make it boom. There are also no codes...
My 2000 ranger with the 3.0 is only getting around 10 or 11 mpg. It's got a check engine light on but the scanner just says lean condition. The truck also has a rough idle. I've replaced the fuel pressure regulator and fuel filter.
View 14 Replies1998 ranger 4.0L. I ran my scanner on my truck to day and my 2 bank 1 sensors seem to be bouncing between .150 and .700 but my bank 1 sensor 2 seems to be stuck at 680-720 and not bouncing, is this normal?
I did pull a code po135 heater circuit malfunction BANK 1 SENSOR 1 ...
Also I am not sure where my fuel trims should be...
My
ST1 10.0
LT1 25.0
ST2 12.0
LT2 25.0
closed loop.
When I first got the truck I pulled codes for lean bank 1 and 2 also a cylinder #4 misfire and the bank 1 sensor 1 heater circuit. I reset the codes and the heater circuit bank 1 sensor 1 popped the mil light in 5 min. So I am starting with the o2 sensors. I've not found any vacuum leaks at this point.
Is there something that would make the 3 cylinders on the drivers side of a 1990 2.9l not fire? I have spark to the plugs and pressure/fuel at the schrader valve on the fuel rail. The passenger side cylinders are firing fine and the engine runs (roughly) on these 3 cylinders. Truck was running just fine, then all of a sudden, drivers side is dead. Is there a fuse or something that controls these three fuel injectors?
View 1 RepliesAl right i have a 94 ranger 4.0 4x4 auto 186k ... The truck has new bosch double plat plugs gaped .054, new wires, MAF, TPS, FPR, O2 sensors, ECTS and I checked the intake air charge sensor and is fine ....
My issue is cylinders 4,5 and 6 dont fire... the coil is sending a spark, i can pull the plugs one at a time and watch them fire (strong blue spark)... All fuel injectors do not leak and spray a perfect cone out of all 4 holes and noid light test is good ...
The truck runs like crap back firing and no power under 4k and i can pull off all 3 wires for bank one and it make no difference and when i unplug the injectors no more back fire....
My car runs fine when it's cold, but once it warms up during idle it will try to cut out and start missing very, very badly. CEL came on and it wouldn't shift into third gear, so had the codes checked, and it said cylinder 1 misfire, cylinder 2 misfire, random multiple misfire. So, changed the spark plugs and air filter, but it's still doing the same thing. Almost didn't make it home, but once I turned the air conditioner off, it ran much better. What should I check next? what could the problem be?
View 5 RepliesI'm working on a truck for a friend's mother and all of the tests that I've done point to the fuel pump. However, to make sure the pump is getting voltage past the large connector block under the cab, I would like to do a pin-out test before I pull the tank (or the bed). The pump will not run/prime in KOEO test, the relay is good, as are all of the fuses and the inertia switch.
Looking for a wiring diagram handy for this purpose? I've look all over this forum and searched quite extensively and I haven't found one for this year. Since it isn't my truck, I don't feel like purchasing a manual. I'm working on a 2003 3.0 2WD Auto.
If a wiring diagram isn't available, what colors are the wires going to the fuel pump? That way I can at least test the ground and the positive.
Just replaced fuel pump and now it turns over but won't crank. I have checked the fuel rail. Pressure is fine. Checked coil pack I'm getting spark. Still won't crank. Checked inertia switch it wasn't tripped. What next? 2003 Ranger edge...
View 1 RepliesIts a 1994 with 4.0, automatic, 4x4. Running fine, parked it, a week later I'm getting a bad but sporadic miss that according to the stealership is the 3 cylinders on the right bank dropping in and out. Driving down the road you can feel them drop out and when they come back its a kick in the pants like a turbo kicked in.
Shop says wires are good, plugs are good, and then lost me when they started talking around in circles and not making much sense.
What could make 3 cylinders all on the same side of the engine drop in and out? This wasn't anything that slowly came on. Fine one day, crap the next. The only thing I did prior to was replace the IAC because it was idling high, it was cruddy inside, and it looked like it was original. It was running fine after that till this issue popped up out of nowhere.
Mileage was claimed to be 178k but I'm beginning to suspect it's probably 278k.
I have a 98 Ranger with a 3.0 (5 speed) that has 254,000 miles on it. I drove it to town this morning (8 miles) and it ran normally. I stopped for just a few minutes at a house and when I re-started the truck, it was missing very bad and the CEL came on. It wouldn't haul itself in anything higher than 3rd gear. I decided to try to make it back home. I drove it less than two miles and it cleared up and started running perfect again. I came home anyway and read the code with my scan tool.
It said that I had a miss fire on cylinder #5. I erased the codes and shut the CEL out and its been running perfectly ever since. (I have put about 150 miles on it so far) If it does it again, I will start by replacing the plug wires. I have already done that but its been a long time ago. The plugs have been replaced twice as well. I was wondering if it could be something other than electrical like a dirty injector or maybe the compression rings lined up and it momentarily lost compression.
I have a 2001 ranger 2wd with a 2.3. It has a miss when acceleration. There is no check engine light. I have changed: fuel filter. Plugs, wires, crank position. Sensor, cleaned mass air flow sensor. Ran 2 bottles of injector cleaner in it. Still missing???? It runs and idles great. Just has a miss in the lower RPM's 1000-2000 then goes away. I really don't wanna take it to a shop. What do you all think??
View 11 Replies