Ford 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 Super Duty (1999-2016) :: 2005 F350 - Vacuum Leak - Manual Locking Hub?
So I have an 05 f350 5.4 with the shift on the fly and the auto/manual locking hubs.. I already know I have a leak with the vacuum and I just use the hubs manually, then shift on the fly to activate the transfer case.
I went to use the 4wd the other night in a snow storm and I have no 4wd, light on the dash comes on and i can hear the transfer case clicking in when i hit the switch between 2wd and 4wd.
So I got under the truck while it was on the ground and manually locked the passenger side, Then tried spinning the axle and it wont spin freely, so obviously its locked.
Tried the same thing on the driver side and the axle spins freely while the hub is locked, So obviously the locking part of the hub is no good... So i guess my question is, even with just 1 wheel locking in the front, shouldn't I pretty much get 3wd? or am i missing something...will it not engage at all because both sides arent locked?
Ford Super Duty (1999-2016) :: 2005 - Vacuum Pump Starts Running And Won't Turn Off After Start Up?
I have a 2005 F250 , 4.2 tdi diesel. I just bought the truck recently and still getting to know it.
I noticed recently that when I turn on the key, the vacuum pump starts running and does not go off. It seems to run continuously and will only shut off if I block the white outlet pipe with my finger. Is this normal or is the pump stuffed.
Passat (B5) :: 2000 1.8T Vacuum Leak On Cold Start - Emissions Workshop 1 Code Flashing
I have a 2000 Passat 1.8T. When I start it up in the morning I hear a loud obnoxious noise like a vacuum leak from the engine compartment. It lasts for about 1.5 minutes then runs normally. After about a minute it starts up again and only last for about 7 seconds...ish. When I drive it afterwards, less that a half block or so, the CEL light goes on after 1 beep. Also, at that time I get a messages from the instrument panel that says "Emissions Workshop 1". I've read that it could be a simple damaged vacuum hose to the secondary air pump. Definitely a huge price difference to repair.
This morning is was colder outside than usual and the dash kept beeping and flashing the "Emissions Workshop 1" code intermittently.
Ford - F350 :: Way To Find Vacuum Leak?
My ford's 4x4 will work if I manually lock in the hubs. If i use the auto option it will not engage. I can feel the rear end diff lock when I put it in 4-low so I know the switch is working. I think it is a vacuum actuated system. How to find the leak or diagnose the problem?
View 7 RepliesFord A/C :: Stuck On Defrost - Vacuum Leak?
I know all about vacuum leaks and such causing this problem, and I tend to think that is my problem. But isn't the temp change dial also vacuum controlled (in my case of an 06 f250 6.0) by that valve near the oil fill tube on the passenger side? I ask because, while I am stuck on defrost i can change the temp of the air that comes out still, telling me there is enough vacuum in the system to at least control that.
I also know everyone talks about checking the ESOF system for cracked lines/leaks, but this shouldn't come in to play unless I have 4WD selected or if the EFOF solenoid is bad, right? I just got done tearing the top end of this engine apart, twice, for oil temp problems and am about done working on this POS!!!
Ford :: Repeated Loss Of Coolant - Vacuum Cap Leak
I have a 2005 Ford focus. I haven't even had it 8,000 miles. THREE times it has overheated, and I've had to replace over a gallon of coolant. The first two times, the cause was a leaky 'vacuum' cap. The third time it was a different cap that was leaking. This radiator has two (that I know of) unused ports on it. A 3/8" one on the top left, and a 5/8" one on the bottom left. They are capped off with little rubber vacuum caps, which are quite simple to replace. But, these things don't last long before they start to weather and crack and leak. I just replaced them after 2,000 miles (before they started to leak), and they're already cracked. But oddly, only on the OUTSIDE. Inside they're still smooth and unbroken.
I've asked for advice at auto parts stores, mechanics, and even at a radiator shop. They all say they've never heard anything like this before?! I just got some silicone vacuum caps which are specifically rated for high temps, but they're so thin I'm not sure I wanna install them.
Ford Excursion :: Stuck On Defrost Vacuum Leak
Ok, I have capped off the vacuum lines to the front hubs and replaced the vacuum solenoid on the passenger inner fender. Still stuck on defrost. I know there are several options from this point what would be the next step after what I have just recently done. Going away on a ski trip and would like to have it working properly before I go.
View 14 RepliesFord Fuel System :: PCV Causing Vacuum Leak
So I was was tired of trying to tune my Holley 650 and finally threw in the towel and got a 600 Edelbrock. When the holley was on there the engine had the slightest surge but I was never able to pin down a vacuum leak. The PCV valve made quite the racket while running.
Now the edelbrock is on there and no matter what I did I could not get the idle below 750 (4 speed truck). I checked the carb, manifold, hoses, and boosters and no vacuum leaks. I disconnected the PCV port at the carb and plugged it and it immediately stalled.
I went down to the local speed shop and got a new PCV grommet that has a small opening (restricting) and some foam filter material in it. Got home and popped it in and the idle dropped right down to a near stall. Adjusted the screw and she's running fine.
Now for the question. Did I fix the problem or just band aid it? Has anyone heard of having to restrict the PCV circuit?
Ford 6.0L Power Stroke Diesel :: 2005 - Truck Only Cranking And Refuse To Start
I need to start ford power stroke, 2005 with vt365 engine, is v8 cylinder, front timing cover was change and since then the truck only cranking and refuse to start, what have done so far, test icp power, ground and ecu 5 reverence voltage was ok,crank engine and monitor icp signal voltage was 1.2 and above at a crank,installed 1500psi gauge in icp hole and monitor oil pressure at engine crank reading 800psi and above, fuel pressure was 45 psi and above, check engine rpm was 175 and above, measure cam sensor ohms was 800 and crank sensor ohms was 400, check cam and crank supply power was 1.87v and ground was ok, replace ipr with brand new, no fuse that cut, scan for code i found(221 internal sensor supply voltage low or below normal range FIM4)FMI4,Engine crank but no smoke from silenser, using fluid and yet engine didn't make any attempt to start was only cranking, what could make the engine not to start and which component has failed that display above code.
View 14 RepliesFord - Explorer :: 2006 4.0 SOHC - Small Vacuum Leak
I'm having a little bit of trouble finding the cause of a minor problem on my 06 Explorer with the 4.0 V6 engine. When the engine is running cold at idle, it runs a bit rough and idle speed is high as well. When fully warm, the engine runs and idles fine. I hooked up a scan tool and there are no pending or stored codes. The live data looks ok except the long term fuel trim which is at about +10% on both banks during idle, indicating a lean condition. Short term fuel is right around zero. The MAF and TPS values seem to respond fine when applying steady throttle.
So I assume there must be a fairly small vacuum leak somewhere that the PCM is able to compensate for since the long term is only at 10. I didn't see anything obviously wrong, the vacuum lines look fine along the passenger side near the firewall. I sprayed a bit of throttle cleaner along the hoses, intake manifold and gasket area, but could not spot any vacuum leaks. Any other common areas to check for leaks on the 4.0 V6? Perhaps there is something I am missing?
Ford - Explorer :: Got Code PO442 - Vacuum Hose Leak?
I popped a code this morning PO442 emission control evap [small leak]. Would this be a vacuum hose leak? I did both heads about a month ago. Any way to narrow down the troubleshooting on this problem?
View 6 RepliesFord A/C :: 2004 - Vacuum Leak Under Dash When Control Set To Off Or Maximum?
I have a 2004 F250 CCSB 6.0 diesel. The problem I'm having is that vacuum is bleeding off when the control is set to OFF or MAX A/C. I also have no vacuum at the MAX A/C level to close the heater valve. Looking for a vacuum schematic for an 03 or 04 truck with manual controls or how to know what the malfunction is?
View 2 RepliesFord 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 (2004-2008) :: Small Vacuum Leak In 4WD System
Long story short, I have a small vacuum leak in the 4wd system. I disconnected the lines going to the hubs to prevent grinding them to pieces as they are brand new. This, of course lock the front hubs in and disengages the X-fer case in 2wd.
It is not engaging in 4wd unless I select it, so I don't imagine it hurting anything in the X-fer case or anything. Other than the extra rolling mass, is this okay to operate at until I resolve my vacuum issue, provided I close all openings and places for trash to get in?
Ford Aerostar :: Vacuum Leak - Small Crack In The Hose
Searched several times over the winter. Finally tore each hose out one at a time and went carefully over it before returning or replacing.
Turned out to be the long formed semi flexible vac. hose that runs from the gas fumes purge tank control valve group to the throttle body across the top of the engine. Ripped it out, on one of the bends was a small crack all the way thru, apparently would open up wide when stressed and cause problems. Mainly on hill pulls or hard acceleration but not every time. NO hair left after this one.
Replaced, deleted the codes. Runs like a top.
Still amazed at how much power these 4.0L V6 OHV Fords have from low speed on an uphill on ramp drag race.
stirs the old hot rodder blood.
Ford 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 Escape / Hybrid :: 2004 V6 - AC Defrost Only - Vacuum Leak
I have a 2004 Ford Escape 3.0 V6 FWD, and the air conditioning has been blowing only to defrost for a few weeks now. After many searches online, most sources seem to agree it is a vacuum leak, as the selector switch is vacuum driven if you want anything except defrost. I popped the hood and within one minute I found one open vacuum line that looks like it has been worn in two.
The line in question goes from the vacuum canister towards the passenger side of the firewall, then goes to a T connector, then a line (the one that is broken) continues towards the heater core lines to where the break in the line is. I found a picture online of what it should look like, but I am having trouble accessing the line that goes through the firewall and behind the glove compartment. I am pretty sure this vacuum line continues through the firewall between the two heater lines, but after that I am stumped.
I popped the glove box down out of the way and I see two thin vacuum lines and a small metal "can" nearby. The black line goes from a fitting and into the A/C bundle, and the white line goes from the top of the metal canister and down into the same bundle. My main question is which line controls the AC selector, and how do I pass a replacement line through that part of the firewall to make a good connection, as it seems the break is at the firewall itself with no extra sticking out for me to connect to.
Ford 6.0L Power Stroke Diesel :: Vacuum Leak Under Dash?
I found out by accident that my vacuum pump is now running all the time. It's not the gray line to the heater valve and it's not the vacuum canister as I already checked the easy stuff. I need some direction where to start looking under the dash as I have never been under that part of my truck. Any common issues or where to look?
More information: The pump only runs all the time when the HVAC control is set to OFF or MAX AC.