Ford Super Duty (1999-2016) :: Running Rough - Check Engine Light Came On And Got Codes P0171 And P0174
My 1999 F350 SD V10 that would crank but not start. I ended up checking numerous things because before it decided to truly stop running, it would run rough for a time and then be fine. The check Engine Light came on and I got the codes P0171 & P0174. Well, I bought MAF Cleaner and took the air cleaner housing off, disassembled it and thoroughly cleaned the sensor and replaced the air cleaner. I continued to get those same error codes, but before I could go any further, the truck totally died. It sat for nearly 2 months with the bed in the air as I had decided to lift the bed to check the fuel pump vs. drop the tank.
Fast forward a bit and I have since replaced the fuel pump and put $40 of Premium Gas along with Royal Purple Fuel Treatment in the tank because I figured things got stirred up and could use a bit of cleaning. I do not drive much, and during the first few trips, it ran perfectly. Then today, it started again with the rough running and trying to die if I let it idle. If I pushed on the gas, it would completely smooth out. If this were a carbureted engine, I would think the low idle was set too low, but since it is not, I am guessing it is one or more of the sensor/s that is/are causing the issue.
I am disabled and can’t play parts swap until I hit on the right part, so I was hoping that I might get some guidance here to narrow things down to the most probably causes so that I won’t go broke changing things until I hit the “right one”. The truck has 153,000 miles on it and I had bought it from a retired couple who used it to pull their 5th wheel travel trailer, so it had mostly highway miles on it. It was immaculate when I bought it and ran perfectly, needing only normal maintenance (oil changes, etc.) over the past 12 years that I have owned it. In those 12 years, I have put about 60,000 miles on it.
Ford F-150 - 1997-2003 :: Engine Service Light - Codes P0171 And P0174
2001 F150 5.4L Triton Motor. Everything seemed o.k. then got the Engine Service Light. Checked with reader and above codes only appeared. Read numerous articles/videos and pulled the PCV hose/boot assembly and replaced the whole thing with oem part. Visually checked for disconnected tubing = none found. After this and with the new hose assembly in place I performed a reset. With the scanner still connected restarted engine and read values: ST FTRM1&2 = -.08~+2.3, both oxygen sensor voltages are varying and the LT FTRM1&2 hang around +26 and +28.
From what I understand the ST seems o.k. but the long term is WAY OUT OF WHACK. Started it up again and took carb cleaner spray and covered all the connections I could see = no change in engine rpm. No cracks in the air cleaner body. Big plug to the MAF was inserted and plugging the hole. I am thinking of making a smoke "machine" and trying that or removing the hoses from the throttle body and plugging the holes in the throttle body and see if that clears them up. IF it does then connect one by one and keep checking the values. Lot more work but I am at a loss.
Ford Super Duty (1999-2016) :: 2005 F250 - CEL Codes P0171 And P0174
My 2005 f250 5.4 with codes p0171 and p0174. I have replaced fuel filter, MAF, Checked for vac leaks by smoke and water test.
I don't have a way to check fuel pressure on this thing since it must have been to much trouble to put that test port on the fuel rail!!!
Ford Super Duty (1999-2016) :: Service Engine Light Came On While Driving Doing Around 65 Mph
1999 F250 Super Duty. My service engine light came on while driving doing around 65 mph. Truck seems to be running normal, no loss of power or acceleration. It's a 5.4L with 104000.
View 6 RepliesFord Super Duty (1999-2016) :: Service Engine Soon And Flashing OD Off Light
2000 F250 V10 Auto/Rebuilt Tranny... This weekend, I noticed my truck wasn't shifting at lower RPMs like it has been. I'm not hitting much higher RPMs per shift then normal. Very soon after, I get a "Service Engine Soon" light and my "OD OFF" light on my shifter handle started flashing.
View 8 RepliesFord Super Duty (1999-2016) :: 2011 F350 - P0171 And P0174 Codes / Spark Knock Pretty Bad
Have a an 11 f350 6.2 gas throwing p0171 and 0174. Driving the truck it has spark knock pretty bad. Ive parked it at this point. Its a tow truck so I need it fixed and back on the road. I've checked the hoses going to the pcvs they appear to be ok.... Also upon starting the truck it just sounds weak.....
View 1 RepliesFord Super Duty (1999-2016) :: 2011 - Service Engine Soon Light Came On - Hesitate While Throttling?
I have a 2011 f250 with the 6.7l diesel. Overall it's been fabulous. Descent mileage, and never ending power. The service engine soon light came on the other day. I have checked the fuel and dropped some additive in the tank. Have also checked the air filter which is good. There is a hesitation when giving it throttle. Then it shoots like a rocket.
View 6 RepliesFord Super Duty (1999-2016) :: 2001 F350 - Service Engine Soon Light Keeps Coming On
2001 f350 7.3 diesel and I come up with the codes for upper and lower dual generator fault. I have only one alternator not the dual.. I checked the gauge and it is running at 14 consistently. But the service engine soon light keeps coming on...I clear them and they come right back... Alternator is only 2 years old and not a rmf..
View 1 RepliesFord Super Duty (1999-2016) :: 2003 F250 SD 4x4 - DTC Codes P0171 / P0174 - Loose Fitting Oily Hose?
I've had DTC P0171 & P0174 (lean in bank 1 and lean in bank 2) for a few weeks now (check engine light cued me on it). Autozone scanned it for me. It's on a 2003 F250 SD 4x4 5.4L.
My first step was to clean the MAFS. Light came back on in about 30-40 miles. I then replaced the MAFS. 30-40 miles and the light came back on.
My first thought was disconnecting the battery wasn't resetting the comp and thats why the light was comming back on.
I went and picked up an Actron cheapy OBD II Scanner today at lunch. Cleared the codes with the scanner and drove back to work.
Checked the codes when I got back (no light on but was curious) and it shows P0171 & P0174 pending.
I've checked and the dipstick is seated properly. The hoses on the air intake appear to seated properly as well. The top hose is a pretty loose fit but it was seated all the way down. The top hose was oily. Not sure if this is normal or not. Could the loose fitting oily hose be the culprit?
Also, what is the lower hose? It comes off the back of the air intake and goes to the driver side valve cover. I know it's not the PCV hose as that is on the passenger side valve cover....right?
Ford Super Duty (1999-2016) :: 2003 F250 - Service Engine Light Keeps Popping On And Putting Out Code P0401
I just bought a 2003 F250 from a used dealer. Unfortunately the service engine light keeps popping on and putting out the code P0401, I have replaced the EGR, cleaned the inside, and cleared the code. However it continues to keep popping up and then it will turn off after a couple of days. I mostly drive in the city and the code generally only pops on when I drive on the highway. I have also noticed a lack or delay of power, when I really hit it hard, I think its because the computer is keeping the egr valve open. What it could be?
View 3 RepliesFord Super Duty (1999-2016) :: 2011 F250 XLT - Check Engine Light On / Codes P2098 And P2272 Came Up
2 weeks ago I had the check engine light come up on my 2011 F-250 6.2 XLT. Did a diagnostic check and Codes P2098 and P2272 came up. Did some research and found out the second O2 sensor on passenger side had gone bad. I replaced it with a Motorcraft O2 sensor and cleared the code. It has not came back since. But still not getting the fuel mileage I got before. What else could be wrong?
View 5 RepliesFord Super Duty (1999-2016) :: 2011 F350 - Check Engine Light And Codes P2020 And P20E8
I own a 2011 F350 dually with the 6.7 in it. It has 136000 on it and zero mods. I was driving over the weekend and the traction control light, brake light, and the ABS lights all came on and the information center displayed Check Brake System. We were towing our 5th wheel when this happened. The brakes on the pickup and trailer both work and we have no problems stopping. About every 15 minutes or so this message pops up and it chimes again. My insight is reading a U0418 code. We are stopped now and the code and alert message is still popping up without the trailer. All fluid levels are where they should be.
We are also getting a check engine light and my Insight is reading the codes P2020 and P20E8.
I can reset the codes dealing with the reductant leakage and low pressure, but not the codes dealing with the brake system.
I have had my pickup in to 2 different ford dealers for these issues and they cannot find anything wrong. I did notice that this time when the Check Brake system warning appeared that the pick up started lunging a bit, we lost power to the stereo and the windshield wipers came on. Our fuel mileage has remained the same and the pickup still tows like a beast.
Ford Super Duty (1999-2016) :: Service Engine Soon And Anti-Lock Lights Stays On In The Cluster
Problems my truck seems to be having for one thing sometimes when I'm going thru the gears (6 speed manual) the truck won't wind up all the way it's like it is rev limiting at about 2000 RPMS, been doing that for a while , it does that most of the time but not always. Problem #2 the anti lock lite stays on in the cluster, and just yesterday the service engine soon lite is now on, my truck is a 1999 F250 7.3 6speed manual with 77000 miles on it ...
View 1 RepliesFord Super Duty (1999-2016) :: F450 - ABS Light On / No Codes
I have a 99 F450. I have an ABS light on. No codes (at least not that my code reader can pickup), but I am also not having any issues. Brakes work fine. What to swap out or where to look?
View 7 RepliesFord F-150 - 1997-2003 :: 1999 - Check Engine Light Codes P0171 And P0174 Lean On Bank 1 / 2
I have a 99 f150 with the 4.2l v6 with a 5 speed 173000 miles. I picked it up not to long ago. When I first got it it had both the P0171 & P0174 lean on bank 1&2 it was also siting for a while. I replaced the fuel filter which was filled with black fuel, also changed the PCV valve, cleaned the MAF sensor, and changed the oil. I cleared the code, drove it for a little bit and the light came back on after 20 miles.
I then proceeded to replace the upper and lower intake manifold gaskets. Upon doing that i noticed that i was missing one of the linkages for the IMRC. I went to the junkyard and pulled off another linkage rod off the same motor. ordered new plastic clips, put the IMRC on cleaned everything up and began putting it back together. I also cleaned the Injectors while i had them out as well and put in new spark plugs and wires.
Put everything back together. code was cleared since the battery was disconnected. drove it and then the engine light came back on again. this time it was only the p0174. so i then both the upstream and downstream O2 sensors on bank 2, reset the code and it came back on again. I'm lost.
Ford 7.3L Power Stroke (1999-2003) :: Service Engine Soon Light - No Codes In Torque
The SES light in my 2001 7.3 came on about a month ago while I was towing a light trailer in the SoCal mountains. When I got home I spent about 2 weeks replacing the injector o-rings and glow plugs. I discovered while I was in there that the head bolts on the driver's side where loose. I retorqued them to spec.
Both batteries were disconnected for the 2 weeks. When I started the truck the SES light was still on.
My Torque Pro app isn't showing any error codes, and is reading live data correctly. (I didn't have the app when the light first came on; I only purchased it after I finished the repairs). Am I missing something? Is the SES light not necessarily connected to fault codes? If so, wouldn't it reset after 2 weeks with the batteries disconnected?
Ford Super Duty (1999-2016) :: 2003 V10 - Slight Miss With Pending P0171 Code
I just purchased a 2003 F250 Super Duty with the 6.8L V10 It has really high miles on it as it was a landscaping companies fleet truck. I'm sure that it was pretty well serviced as it has 300K miles on it and it's still running pretty decent.
I picked up the truck and I have to get the smog done soon. It idles with what I can only describe as a slight miss and it runs and drives great. seems to have plenty of power for the miles that's on it.
There is no active CEL on but I scanned the OBDII system and found a P0171 Lean bank 1 code in the pending codes list of the scanner. I guess this year engine doesn't have an EGR Valve or DPFE sensor because I've looked high and low for it and there non existent on this engine.
I've checked for vacuum leaks by spraying brake cleaner or carb cleaner all over the place and it makes no difference and all the vacuum lines and connections look okay.
When it's running It does sound like a vacuum leak right behind the top of the plastic throttle body but I can't find it, I don't know if this big *** engine just sucks that much air or what.
Like I said I need to smog this thing soon and I don't want it to fail if it's missing or has another issue. The fuel injectors look new and one coil pack looks like it's a replacement...
Ford Super Duty (1999-2016) :: 2002 F250 - P0171 Code Only / Coughing And Running Rich
2002 F-250 5.4l 4x4 ... I am getting a P0171 code only, with strong fuel smell. No P0174 code. So it has to be something effecting just the one bank? Sprayed engine with starting fluid, no charge in idle. Replaced upstream O2 sensor, no change. Truck was running fine, and then just started this all at once.
View 5 RepliesFord Super Duty (1999-2016) :: 2004 - Clicking Noise After Engine Shut Off / Codes P0683 And P0404
I bought a 2004 excursion 4wd 6.0 EB Excursion a few weeks ago and I noticed it making clicking noises after I shut the engine off yesterday.
Its been throwing codes P0683 and P0404 intermittently. (they clear themselves after a day or so and dont reappear for another three or four days)
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