Ford F-150 - 1997-2003 :: Running Loud And Heavy - P0171 - Vacuum Leak?
I've had this problem for a little while now, my 97' F150 V8 4.6L, has been running real loud and heavy. When it starts up it sounds like a race car. It finally shot me a code for P0171 - Bank 1 (passenger side) running too lean. From what I've read, this is most likely a vacuum leak but I don't know too much about it.
A couple of things I've noticed while driving it around:
1. If you are in the engine compartment while its running, you smell the excess gas on the passenger side of the truck.
2. The exhaust also smells really heavy
3. The loud and heavy running is mainly when accelerating, if I maintain a constant speed at for a little while it almost starts to run normal. Cruising down the highway its almost just as quiet as before the issue
4. Engine coolant heats up much more quickly, but doesn't get above operating temperature (read from tuner, never above 200 degrees)
In response to the problem I replaced both the O2 sensors closest to the engine and the PCV and elbow. No change. Have a fuel filter ready to install, but for some reason I don't think that is it either, as it would probably effect both bank 1 and 2.
Like I said I'm not too well versed in the vacuum system but if any of these symptoms stand out I'd love to hear your thoughts.
Ford F-150 - 1997-2003 :: Vacuum Leak When Engine Is Under Load
It has been since the 80's that I have attempted to do any work on a vehicle. How do I find a vacuum leak and where is my vacuum canister. I am assuming that it is a vacuum leak for anytime my engine has a load on it the air stops coming out of the dash vents and goes to the defrost vents. I have an 2000 F150 with the large engine with about 112,000 miles.
View 11 RepliesFord F-150 - 1997-2003 :: 1998 - Vacuum Line Hanging Under Truck?
I noticed a vacuum line hanging under my 98 F 150 4x4 I traced it out to my front axle question is where does the other end go I have looked but no luck to where it goes.
View 5 RepliesFord F-150 - 1997-2003 :: Heater Control Valve Removed / Missing Vacuum Line
02 F150, 5.4 gas motor, about 338k miles. Bought this truck well used so I would have a truck when I needed one. Someone has removed the heater control valve. I've got a new one, but there is a port on the top for a vacuum line, but where this line plugs into.
View 1 RepliesFord F-150 - 1997-2003 :: 1998 - Air From Defrost Only - Vacuum Leak?
This has been on going for the past year. The blend works fine. Fan speed works correctly. The selection for ac, max ac, etc., will only allow air through defrost vents. Vacuum leak?
1998 4.6 auto super cab
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.
Phaeton :: Burning Oil Smell - EGR Vacuum Line Disconnected?
My Phaeton had the typical burning oil smell so I suspected the Camshaft cover gasket. However when I looked at the service history the gaskets were only just changed in 2012.
When I inspected the car closely I found the RH EGR vacuum line was disconnected (pipe cracked through).
Unlike the Audi A8, the VW 4.2 looks like it has 2 EGR valves, and not one. So I reconnected it, and so far, the burning smell is now gone!!
I am a newbie on the VW 4.2 but is a disconnected EGR a likely cause of oil leaks? (ie positive crankcase pressure). It makes me wonder if all the people whom are changing their cam cover gaskets, should be checking their PCV/EGR's instead??
Ford F-150 - 1997-2003 :: Cooling System Leak On Heater Line
Got F-150 4.6 cooling system leak on the heater line (farthest back line) coming out of the block. Fitting looks to be steel. How does it attach/ do I need to remove the Intake to replace?
View 5 RepliesFord F-150 - 1997-2003 :: Vacuum Leak On PCV Hosing - P1131 Error Code
I'm getting the p1131 error on my 2000 xlt f150 5.4l. I know it's usually a vacuum leak on the pcv hosing, which I did have at the back and replaced as well as other softer joining sections(3 to be exact lol), but I'm still getting this error. Changed out my plugs and cops(as they needed it) and the back two plugs on both bank 1 and 2(plugs 4&8) were both white! Since this is an obvious indication of a lean burning cylinder can I make the assumption my most likely problem is dirty fuel injectors on those cylinders?
View 13 RepliesFord F-150 - 1997-2003 :: Vacuum Leak - Error Codes Indicating Bad O2 Sensors
I am having problems with a 2003 Ford F 150 with a 4.2 L V6. The problem is that it is giving me code errors that would indicate bad O2 sensors. I replaced both the upper and lower O2 sensors, and still I get the same codes. I was told by the mechanic with the computer reader that this usually means a bad vacuum seal. He suggested looking for bad hoses, but did not offer much more than that. How to proceed?
View 2 RepliesFord F-150 - 1997-2003 :: Transmission Line Running Under The Radiator Has Started To Leak
The transmission line running under the radiator has started to leak. I took a piece of rubber trans. hose and buy passed the cooler. How much does the cooler support the trans. temperature. I don't tow with the truck. And for the most part drive it around 14 to 20 miles one way to work. Is this something I need to replace now or after the temperature hits the 80s.
View 5 RepliesFord F-150 - 1997-2003 :: 2001 - Truck Tries To Stall Almost Sounds Like Vacuum Leak And Really Bogs Down
So.... here's my issue. I have a 2001 supercrew 5.4 and runs great all day long, no problem starting or anything. After I have driven it for a while and turn the AC on it cools off very good then after about a 1/2hr. the truck tries to stall. It almost sounds like a vacuum leak and really bogs down. I can wait about 2hrs and then with the AC off the truck starts and drives like it should. I am steering to the IAC valve but would like to know if this is it.
View 9 RepliesFord F-150 - 1997-2003 :: 2001 - Coolant Smell - Can't Find Leak?
I have an 01 supercab. 5.4 Triton 135k. I have begun to smell coolant the last couple of days. Have seen nothing leaking and truck doesn't run hot.
Will investigate more this weekend. Where to start looking for this. It has to be leaking somewhere. Windows don't fog and the smell is there all the time. I live in florida so don't use much heat.
Not the heater core. Heat works fine and no smell from the vents.
Ford F-150 - 1997-2003 :: Vacuum Leak / Bank 1 Is Slightly Higher Than Bank 2
I am in the process of trying to chase down a vacuum leak on my 2003 F150 with the 5.4. I have checked all lines and cannot find it. I decided to check the long term fuel trim and noticed that my bank 1 is slightly higher than bank 2 (screenshot attached). Is this enough to assume the leak is on the bank 1 side?
View 14 RepliesFord F-150 - 1997-2003 :: Fuel Line Going To The Engine Was Broken
So Iv a couple weeks ago I bought a 1998 f150 and today I was gonna do the fuel filter and saw the line goin to the engine was broken and they put a rubber hose in line. The hose is only about 6inchs and I work at ford so I got the price on the whole fuel line running up to the engine. I was just wondering if any repairs that work for metal fuel lines.
View 4 RepliesFord F-150 - 1997-2003 :: Check Engine Light On - Rubber Vacuum Lines
I got a question, what is after ac hose vacuum left side on a 10 th gen 4.2l engine bay by the firewall, to the right of the blue thing, right of that on that line their is a 2 end diameter rubber vacuum line? What is that called, I need a replacement.
View 7 RepliesFord F-150 - 1997-2003 :: Cannot Get Engine To Line Back Up With Motor Mount?
I have a 97 f150 4.6 4x4 i cant get my engine to line back up with the motor mounts. Is there a trick to doing this? I've tried to lift the motor several different ways, but still nothing. Its like the motor isn't going back far enough. But it cannot go back any more without hitting the trans?
View 8 RepliesVolvo :: Engine Computer Test - Sputters Unless Disconnect Vacuum Line
I replaced the engine computer (1346107) with one from ebay. Now it runs but sputters unless I disconnect the vacuum line (still sputters but a lot less). with it connected, the timing is off (to about 15-18 instead of 12). the distributor is rotated as far as it will go. Need to recognize these symptoms? Is there a procedure to test the ICU?
View 17 RepliesHonda - Accord :: 1990 - Loud Low Pitch Noise That Varies In Pitch Depending On Engine Speed
I replaced the timing belt an waterpump at 262,000 miles and ever since the engine makes a loud low pitch noise that varies in pitch depending on the engine speed. I replaced the alternator and it didn't work. I don't know if the power steering pump, a/c compressor or something else is making this awful sound.
View 1 Replies