Ford F-150 - 1997-2003 :: 2002 4.6L Windsor Won't Stay Running - Codes PO171 And PO174
This truck has been running fine then as my son was getting off the interstate it started acting like it was running out of gas then died. I went to tow him in and it cranked right up and never had another problem for a week. Yesterday he drove 80 miles away when the same thing happened shortly after he got off the interstate. He replaced the fuel filter which it probably needed but still won't start and stay running. It cranks right up the immediately dies.
First time this happened it was throwing codes PO171 and PO174. Now it is not showing any DTC's at all and none pending. We see no frayed or bad wires and all vacuum hoses seem fine. He cleaned the MAF with no change in behavior.... If it were an outboard motor or some kind of boat I'd say the problem is in the ignition switch except it does run a very short time before dying. If I immediately try to restart it won't stay running. If I let it sit for a while then it will run for about a half minute.
Ford F-150 - 1997-2003 :: 2001 5.4L Throwing Codes PO135 / PO155 / PO174 And PO171
I have a 01 f150 7700 with a 5.4L and its throwing codes po135, po155, po174, and po171. Here is the history, last year had same code and found it was a bad ELLBOW on pcv hose, replaced and that fixed it, I also had a crack on egr valve and I replaced that too. This Jan truck was running bad in the morning and I traced it to a bad idle air controller, replaced it. I got a code and guy said I had a bad pcv valve so I replaced it.
About 3 weeks ago check engine light came back on with the 4 codes listed above, I replaced both front o2 sensors, 250,000 mile so I thought that was it but came back same code, I took it to a local mechanic and he said that the intake gaskets need replaced, but he call me later and said I had no leaks on the intake and that he did find another vac leak. He didn't charge me anything and sent me on my way.
I drove the truck about 50 miles and same codes back, so to recap I have cleaned mad sensor, replaced both front o2 sensors, a new egr valve, a new idle air control, pcv valve, pcv hose and ELLBOW, don't know what to look at next. Any clues?
Ford F-150 - 1997-2003 :: Truck Cranks For 3 - 4 Seconds Before It Finally Fires / PO171 And PO174 Codes
I have the notorious PO171 and PO174 codes on my 2003 5.4L that come back whenever I erase them. I cannot figure out the problem. Whenever I start the truck it cranks for 3-4 seconds before it finally fires, then rpm's are very low, then they finally pick up. I have noticed a loss in power as well. I have completed a full tune-up (spark plugs, coils, boots, filters, etc.)
I have checked the vacuum and PCV lines numerous times, I have yet to find a leak. MAF appears clean. I am running a K&N CAI setup. O2 sensors a good, replaced the gas cap. The only other problem I can see is a bad PCV valve? I hope it isn't a manifold gasket. The truck has been very well maintained and still looks brand-new throughout at 250,000 miles.
Ford F-150 - 1997-2003 :: 2000 - Rough Idle / Codes PO304 And PO174
I have a 2000 F150 4.2L and I have 2 codes PO304 & PO174 so far I have changed my plugs & wires,fuel filter,mass air flow sensor, and coil pack...it is still running rough under a load and a little rough on idle..
View 9 RepliesFord F-150 - 1997-2003 :: 2002 V8 Running Rough - Codes PO353 And PO171
2002 F150 5.4 v8,,, I had troubles just over a month ago with a po305 code. i got the truck fixed with 2 new coils n some gaskets. I am having these po353 & po171 codes pop up now. The truck is running rough and I am curious to if its just another coil problem or if their is something I am overlooking or just don't know about?
View 1 RepliesFord F-150 - 1997-2003 :: Truck Running Rough And Hesitating - Codes PO141 And PO171
2001 F150 4.6. Just replaced all 4 oxygen sensors and spark plugs. Replaced rubber grommet on brake booster as it was leaking vacuum.
Truck is still running rough hesitating.
Pulled codes came up as PO141 oxygen sensor heater circuit. PO171 passenger side cylinders running lean. Fuel trim outside limits.
Ford F-150 (2009-2014) :: 2011 - Code PO171 / PO174 And PO300
Does the 2011 6.2 have a DPFE sensor? If so where is it located? Codes are lean bank one and two and random misfire. Suggestions I have read online are replace DPFE sensor. I don't think maybe there is one on a 2011 6.2. Who have had it and had it fixed. Other things I see are clean the MAF sensor. Look for vacuum leaks.
View 1 RepliesLincoln :: 2002 - Idles Wildly / Getting Code PO171 And PO174?
My 02 navigator does not idle right when in park or sitting at stoplight. I've gotten codes po171 and po174. The truck ran fine for a good 3 months after the (service engine soon light) came on and I got these codes so I decided to do nothing.. Now it idles bad and has even shut off twice on me while pulling into driveway. I changed the MAF and that did nothing.. Should I assume its the o2 sensors or is there a chance my CAT is shot.
View 2 RepliesFord F-150 - 1997-2003 :: 2002 - Got Error Code PO174
Looking for some experience/recommendations for the "what to do" and "in what order" for an error code. Recently the "SERVICE ENGINE SOON" light came on and has stayed on for the last 2 weeks. It has don this before after a heavy rain but went off after a few days but not this time. I took it to Advance Auto who hooked it up to a Trouble Code Reader and got back "PO174- Bank 2 system to lean". From what I've read from the Haynes book and other forum postings this is either a O2 sensor issue or a intake manifold gasket issue? Does this sound right? Next is how to go about addressing this issue in a systematic manner so as not "fix" 10 things that don't need fixing and not running to mechanic and paying a buttload for something I can do myself for less.
View 1 RepliesAlero :: 2003 - Codes PO141 And PO171
03 Alero 2.2 with no maf sensor.
I have both codes 141, 171. I am trying to figure out if I should just change rear oxygen sensor or something else.
Ford F-150 - 1997-2003 :: Lighter / Power Point Door Stays Open All The Time
Stays open all the time. I'm guessing there is a spring somewhere that closes it. Is there a parts breakdown I can look at? I've looked around some but haven't found anything that looks related to this. 1997 F150....
View 1 RepliesFord F-150 (2004-2008) :: Vacuum Leak Causing Erratic Idle - Codes PO171 / 174?
I tugged on the little hose on the back pass. side of the engine,(5.4),...
and I could hear the vacuum leak that is apparently causing the erratic idle, and PO171 & PO174 to come up.
I know this hose is hooked to the Charge motion Control Valve on the back of the manifold,..I can't imagine what it does, as it terminates with some kind of plug or check valve??? Haynes say's to remove the entire manifold to get to the CMCV.
I can see it with a mirror,. I am thinking maybe long needle nose from Harbor freight,...bend the tip short,..maybe be able to change it out?????
Santa FE SM (2001-06) :: Codes PO171 And PO401 - Car Starts To Bounce A Little Until Let Off The Gas
I am getting two codes, p0171 and p0401. Both point to something with the fuel are mixture I believe. My problem is that I can not figure out what the problem is. As far as I can tell there is not a vacuum leak. My MAF sensor looks clean and close to brand new. The codes come on and the car seems to want to jump. It does not stall, just starts to bounce a little until I let off the gas. And it does not do it until the car is warmed up. 2001 Santa Fe .....
View 4 RepliesCelica :: Extremely Sluggish With Codes PO300 / PO302 And PO171 Constantly Popping
I have a 1.8l 1zzfe that has been rebuild because of the oil consumption problem. Right before it was rebuilt, it became extremely sluggish and was popping po300, po302, and po171 constantly. When the motor was torn down #2 cylinder had a burnt valve, rings were stuck, and carbon everywhere. All bearings were in spec, but they were still replaced. Pistons, rings, timing set, and plugs were replaced. I am still getting a sluggish acceleration, and popping codes po171, and po300. I have tested the injector resistance, seemed ok. Tested spark, seems ok. Tested the wiring harnesses, cleaned the maf, intake, and checked all of the vacuum lines. Not sure what to try next?
View 2 RepliesFord 7.3L Power Stroke (1999-2003) :: 2002 7.3 - 43 PSI EBP All The Time - Codes P0472 And P0475?
As title says, the EBP stays at 43psi key on running or not. MAP is at 13.7psi like it should be. tried a new sensor and also unplugged and no diff. Wiggled engine wiring harness and it never dropped. No tuner. Codes are P0472 and P0475. Truck runs very sluggish. 4.7v on EBP plug
View 5 RepliesFord F-150 - 1997-2003 :: Codes Came On Again - MAF?
1997 f 150 4x4 5.4 right now has a 145k miles.
About a year and half ago (120kmiles) the check engine light came on, checked the codes; 1 left bank to lean. 2 right bank to lean. Cleared the codes drove for about 3 weeks and the light came back on same codes, cleared the codes, drove for about 3 weeks and the light came back on, this continued with shorter times between the light coming on. Did this until sept 2012 took it in and Ford replaced the MAF, all good until today Jan.8, 2014. The light came on today I checked the codes 1 left bank to lean. 2 right bank to lean, cleared the codes today, the light staying off for right now. My best guess is that the MAF is again bad, my question is; how long does a MAF last, why would it fail in just over a year? What can I do to make the the MAF last longer.
Ford F-150 - 1997-2003 :: A/C And Heater Out At Same Time
Last summer my A/C and blower stopped working while I was driving on a hot day in July. After replacing blower resistor, the fan works but still no A/C. I tried recharging refrigerant but the pressure in the lines was too high. Also it didn't seem A/C compressor was working either. I suffered through the hot summer only to find when winter came the Heat quit working as well. I noticed antifreeze smell in cabin and put liquid aluminum to stop the leak and still no heat. I planned on pulling the dash and replacing the heater core but wondered while the dash is off could there be something to replace in here on the A/C as well?
View 5 RepliesFord F-150 - 1997-2003 :: CEL Came On / 5 Different Fault Codes
The check engine light came on in my truck and while I suspected it was a misfire (driving along it will misfire like crazy at certain RPM). What I cannot figure out is exactly which coil is causing the problem. I get these codes:
P0306 - Cylinder 6 misfire --> Easy enough, cylinder 6
P0356 - Ignition Coil F Primary/Secondary Circuit --> Which cylinder is this?
P0356 - Ignition Coil G Primary/Secondary Circuit --> Which cylinder is this?
Assuming that cylinder 1 is the front left (when facing the vehicle) am I right in that cylinder 6 is the 2nd from front on the right (when facing the vehicle)? Would Ignition Coil F also be on cylinder 6? and therefore ignition coil G be cylinder 7?
The other code I am getting are both the same:
P1740 - Powertrain
P1740 - Powertrain - Transmission System Problems
I suspect these 2 are related to one another, the odd piece is it drives fine other than the misfire. Hoping to cure the misfire so that it drives smoothly and I can then figure out the P1740 code.
Ford F-150 - 1997-2003 :: Got Codes After New Engine?
We sold a customer a 5.4l engine and he installed it and it idles just fine, but falls on its face when put under load. Truck is a 2001 f150 and is not around here. Cus gave me these codes:
P0135
P1130
P0174
P0308
P0351
P0352
P1131
From all I have found, it appears to be a lean condition and cop #1 and #2. All of these codes pop up all at once after r&r ing an engine? I am thinking bad intake gasket and possibly bad coils.