Ford F-150 - 1997-2003 :: 1999 - Truck Throwing P0174 Code Intermittently?
I have a 1999 F-150 with the 4.2L engine. I recently did a motor swap as the original motor was bad. I bought this truck as a project truck and have enjoyed working on it.
When I did the engine swap back in May of this year, it took a while to work out all the little bugs and quirps. However, after a while of running the truck it threw a few codes. I replaced a lot of the emission components and no more codes for several months until last month the truck started throwing the infamous P0174 "too lean bank two"... I have replaced the pcv valve and all the hoses to include the little rubber boot under the front of the intake, all 4 O2 sensors, MAF sensor, EGR, DPFE, IAC valve, new wires and plugs to include coil pack, fuel pressure regulator, and all the vacuum lines that are under the hood.
The truck runs fine, has power, but about every couple weeks or so it throws this P0174 code. I know there are alot of threads on here about this problem and I have read many of them. It only throws the P0174 and not the P0171. I am wondering if there could be a problem specific to "bank 2" that I am over looking.
Ford F-150 - 1997-2003 :: Throwing Code P0171 And P0174?
97 F150 4.6 200xxx on recent rebuild. My truck is throwing P0171 & P0174.
I think I tracked it down to leaky IAC and EGR gasket. I sprayed both with carb cleaner and the RPM's dropped.
My question is, wouldn't the RPM's rise instead of drop? I was under the impression that they would go up if the gaskets were leaking. Or did I use the wrong spray?
Ford F-150 - 1997-2003 :: CEL Came On When Coasting Down A Steep Hill - Code P0174
I was coasting down a steep hill yesterday when the CEL came on. I pulled the code this morning and got code P0174, system too lean bank 2.
I cleared the code. Should I just wait to see if it happens again? The truck is running great. There is no sign of a problem. BTW, it's 99 F150 5.4.
Ford F-150 - 1997-2003 :: Code P0171 And P0174 - Vacuum Leak
I had my fuel system cleaned by the dealership last weekend and I feel like I gained 50hp+ ... Now its throwing a P0171 about a week and a half later. My computer also listed P0174 under the pending codes or whatever the section was.
2003 F150 5.4L ... I cleaned the MAF sensor a couple weeks back which stopped a rough idle and I have put some 300+ miles on it since. about 200 miles since the fuel system cleaning.
I got home and popped the hood and it sounded like a vacuum cleaner. Guess it is a vacuum leak. I might need to stop using this ford house. I swear this is the second time there was a vacuum leak(I think, first time they said it was spark gap issue). I'll be heading back in the morning now.
Ford F-150 - 1997-2003 :: 2002 F150 5.4 - CEL Came On For Code P0174 - Misfire On 7 Of 8 Cylinders
So the past few weeks my truck has been sputtering a lot. It seems to do it more so in low RPMS but when I lay on the throttle I didn't really notice it. I haven't had time to look into the issue but yesterday the issue got drastically worse and the CEL finally came on. Registered P0174 as well as a number of other codes including misfires on 7 of the 8 cylinders.
So far I have replaced the fuel filter. Spark plugs are only a few months old. I didnt think it would make sense for all of the coil packs to go out at once so I was thinking either a fuel issue or vacuum leak. Why would it only spit out P0174 (Banks 2) and not show P0171 (Banks 1) along with it? Fuel pump? Vacuum leak? Where should I start? 2002 F150 5.4L...
Ford F-150 - 1997-2003 :: 1998 4.6L - Misfire On Cylinder 6 / Code P0171 And P0174
P0306 (ok #6 missfire) with P0171 & P0174 --- Do I chase electrical or fuel or both. Afraid to assume anything but probably would normally address the misfire electrical first.... Don't want to go down that 'primrose path' if others have been there first!
View 4 RepliesFord F-150 - 1997-2003 :: 1999 - Misfire / Running Rough - Code P0305 And P0174
Here is my situation : I have a F150 1999 4x4 ext cab with 326 000 km. A little while ago I got a P0401 code so I decide to clean the TB first and at the same time change plugs and wires since they were overdue. The same code came back and a misfire. Ordered EGR valve, DPFE sensor and selenoid. Realize that I had ordered crappy plugs by mistake. I change all plugs. Had to wait for the EGR valve and others to arrive. I drove the truck for a while since I did not have the time to change the valve and others, during that time the misfire did not come back. Yesterday I change the EGR and others. Today I get a truck that runs really rough and got new codes , P0305 and P0174. I'm really confused now on what should be my next step, should I change the coils, can a P0305 cause a P0174. Should I change vacuum hose going to the EGR , selenoid and DPFE.
View 12 RepliesFord F-150 - 1997-2003 :: 1998 - Suddenly Died / Cranks But Won't Start - Back Link Error Code
My 4.2L died all of a sudden, it cranks but won't start. Checked the harness side to coil packs, pos. signal but no neg. Tried a code reader keeps coming back link error. Does this mean PCM is fried?
View 4 RepliesFord F-150 - 1997-2003 :: 2001 Truck Will Not Start And Clicking Noise Coming From A Relay In Cabin Fuse Box
I am having trouble with my 2001 F-150. Starting yesterday it would not start. At 1st i thought it wa the battery, so i took it off, charged it, put it back in the truck and still no start. There is a clicking noise coming from a relay in the cabin fuse box, disconnected the battery, removed relay to inspect and everything looks good. After plugging it back in, and connecting the battery, the truck still wont start and there is a clicking sound coming from the dash near the radio. Rhis is my work vehicle!!!
View 3 RepliesFord F-150 - 1997-2003 :: Truck Has Random Misfire Code
I was involved in a light accident over the weekend. I was hit in the rear by a Prius which didn't do body damage except for the 7 blade harness for my trailer towing. But, now the truck has a random misfire code. You can feel the truck jerk when you go up any grade. We changed the fuel filter and dumped in some cleaner already. One guy says its fuel and one thinks its coils. It is a 2003 F150 extended cab 5.4 with a nearly new motor. The truck has about 175xxx on it and I have had it for about 40xxx. I have not changed coils. We did check the inertia switch on the passenger side and it was not tripped.
View 2 RepliesFord F-150 - 1997-2003 :: Truck Won't Communicate With Code Reader
Truck had a rich on bank 2 code about a month ago, I cleared it and the service engine light stayed off for quite some time.
Last friday on the way home from work the truck started shaking badly right from idle, and at one point on the freeway the service engine started flashing. I couldn't pull over as I was on a bridge but once I dropped my speed the light stayed on but the flashing stopped.
I went to plug the truck in today and first shot it didn't communicate with the code reader at all, I talked to someone who told me that the cigerette lighter fuse is also the OBD port fuse, I pulled a fuse from somewhere else and plugged the reader in again. This time it started communicating with the truck but didn't display any codes while all the while the truck is miss firing and the service engine light is lit up on the dash.
One other weird thing: The fuse had an LED indicator to show that it is blown, when I push the cig lighter in the led gets a hell of a lot brighter, if there is always power drawn through the circuit shouldn't the LED be constantly bright all the time? I'm wondering if there is a short somewhere. Where to look next??
Ford Ranger / B-Series :: 2003 - Cleared Code PO117 But It Keeps Coming Back
Which one is the ect? One is the ect and one is a switch for something?
Just gone done switching that POS plastic thermostat housing thing, both sensors were replaced not sure which one is throwing the code.
I have cleared the code and it keeps coming back.
Ford F-150 - 1997-2003 :: Truck Wants To Stall When Coming To Stop
I have a 2000 f150 with 210000 miles. The truck wants to stall when coming to a stop. I have noticed this from a higher speed and more when at operating temp. The truck runs great and idles at a stop great, but when coming to the stop the rpms drop to300 or so then it catches itself and revs up. I have cleaned the maf sensor the iac and checked throttle body all seem to be in working order and no obvious vacuum leaks.
My power steering pump is going and it's time to change plugs, but don't believe these would only effect the truck at braking. Have heard maybe torque converter is stuck this does make sense cause usually happens after getting out of first gear. Would changing the fluid solve this or should i look at sensors? Fluid starting to turn slight brown probably been in there 80000 miles.
Ford F-150 - 1997-2003 :: Truck Dies At Stop While In Gear - Code P0443
I have a 1997 Ford F-150 with the 4.6L auto trans 189,000 miles
Ok.. there was no problems until the other day when I unplugged the positive side of the battery to replace it's clamp. I Put the new one on and drove to the store but when I came to a stop, the rpm's dropped to 0 and the truck died. I restarted it and every time I would come to a stop it would die unless I give it a little gas also if I start the truck and leave it in park it idles fine until I give it some gas then let off.. the idle drops and dies! If I give it a little steady gas the idle will return to normal.
The check engine light works fine but never once lit up because of this problem! I used a code scanner and if the truck was off and the key forward, it would have no codes. With it running it had the code P0443. I found and replaced a blown fuse and still have the same problem but it reads no codes at anytime. I checked all the vacuum hoses and there seems to be no leaks and the mass airflow sensor looks clean. I have allot of miles but it has been taken care of well and has had a ton of parts replaced over the last few years.
I am wondering why this happened out of the blue and If there is something I am missing that I should be looking at. I don't want to replace the purge control valve if thats not the problem.
Ford F-150 - 1997-2003 :: Transmission Leak Coming From Back Side Of Pan Gasket
I replaced the filter and gasket on my transmission about a month ago, it had a slight leak when I changed it, that appeared to be coming from the back side of the pan. So changed it and everything seemed good, today I noticed a small puddle of fluid under the truck after setting only a few minute's. Got home crawled under it and sure enough it was coming from the pan gasket again, now last time when I replaced it. I put a small amount of Permatex on the gasket back there, but it is still leaking there.
I checked when i had it apart the other day for a crack or anything noticeable but figured it was just the gasket was bad ( was a cork type gasket). Its hard to get the pan in there between the cross member and the transmission so I am not sure if i scrapped the permatex off or not, I am gonna take it all back apart and check it again and put a new gasket in and put the permatex under the gasket and on the transmission then hope for the best... 97 4.6 4x4
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 F-150 - 1997-2003 :: 2002 - SES Light Came On - Showing Codes P0171 / P0174
2002 F150 - 5.4 ... So just bought this truck about a month an a half ago. No problems but the other day the SES came on. It is showing P0171 and P0174. And P0000 (almost forgot that one) was told that's generic though. Haven't really noticed a difference in the way it's running. Has been extremely cold here in WV but the only thing I can notice (or think I notice) is the gas mileage has gone down a little. After reading some on this forum I'm looking for a vacuum leak correct?
View 10 RepliesFord F-150 - 1997-2003 :: Shaking And Idle Bounces Between 500 And 750 - Codes P0172 And P0174
2003 f150 5.4, 4x4 ... Truck is shaking pretty bad, idle bounces between 500 and 750, and its throwing p0172 (rich on bank 1), P0174 (lean on bank 2), and it looks like a misfire on cylinder 8 judging by that power graphy thingy. I'm going to check for a vacuum leak tomorrow on the PCV.
View 2 RepliesFord F-150 - 1997-2003 :: Code P1260 Indicating Attempted Theft Which Disabled The Truck
I have a 1999 F150 with a 5.4L. I recently replaced the PCM with a new unit from autocomputerexchange.net that was programed for my truck. I installed the PCM but the truck did not start. The theft light is also flashing rapidly during cranking. I ran a code scanner a recieved the code P1260 indicating an attempted theft which disabled the truck. I read that if you have two keys you can sync the keys with the new computer but unfortunately one of the keys stopped working a couple years ago (not sure why, stopped for gas and it never started back up). Since i do not have two working keys do i have to tow the truck to a dealer and let them reprogram the keys and reset the PATS or can i have a locksmith recode the keys and sync the keys myself.
View 2 Replies