I just changed out my IAC. Truck is still idling too high. When I squeeze the host to the IAC it idles down. When I unplug the IAC the truck immediately dies.
Does the IAC talk to the the Throttle position sensor? Should this be my next part to change?
2002 F250 5.4L ....
I have a 2002 f250 super duty v10 with the manual transmission... It has aloud squeak from under the truck when Im slowing down or maintaining a certain speed. The squeak goes away when I accelerate or if I push the clutch in. It does have a vibration to it when im speeding up. And shakes bad sometimes when I let off the clutch from a stop..
View 1 RepliesIt's an 02 f250 4x4 crew with 7.3, 6 in lift and 35 in tires. It has all ways wandered a little bit and I just accepted it. I changed everything in the steering from ball joints, tie rods and drag links less than 2000 miles ago. Everything still seems good and tight. Recently it has gotten a lot worse so I checked again and everything seems to be tight. Where to or what to check next? It's to the point I don't feel safe letting my wife drive it and I don't enjoy driving it.
View 7 RepliesI have a 2002 F250 7.3l with an aftermarket alarm. I can't read what the third letter is on the decal MV? 2000 Modular Vehicle Security. I added a pic of the alarm decal below. The key fob it had was aftermarket for the alarm and stopped working about a year ago. Today I unlocked the drivers door with the key and the lights started flashing and I can hear a clicking sound. It done this a few times back when the key fob still worked and I just kept hitting lock and unlock until it finally stopped. It won't let me start the truck at all and I have tried unhooking the batteries with no luck.
View 4 RepliesToday I was going to launch my new boat and when I backed down the ramp, the brake went to the floor almost sinking the truck. Long story short, the brake line that runs along the frame to the rear brakes rusted through at a bend that I couldn't see. Seems the line is about 8 feet long. What I'd like to know is can I replace it without dropping the fuel tank which of course I just filled yesterday and can I obtain one at a ford dealer or will I have to order one. My truck is my only transportation.
View 1 RepliesMy 2002 F-250 v-10 sat for over a month with me in the hospital for spinal reconstructive surgery. Battery was dead but has been charged and tested as good. The truck cranks strong but will not turnover. I am unable to do other diagnosis, what might be the problem.
View 2 RepliesI have a 2002 F250 7.3L and it wont start. Its been sitting for the past few days in the cold because the batteries were shot but was plugged in the whole time. I replaced the batteries today and even poured diesel 911 5 hours before trying to start it in case the fuel was gelled. It cranks fine but just wont turn over.
View 2 RepliesI have a 2002 f250 SD v10 4x4. I had a ground wire break fixed that know noon of my instruments work. Dash lights up but nothing moves. Pulse my parking lights stay on when the truck is shut off or when I turn lights on then off. I have to disconnect the battery to get hem to shut off.
View 3 RepliesSo basically I thought it would be a great idea to degrease my motor from the top down.... After washing I start it up and drive down the road to head abunch of misfiring under heavy load or high rpm's.
My problem is that the misfiring won't throw a code. I then proceeded to buy a new ignition coil (thinking this was the problem) but with no code to go off which cylinder was bad I just switched the good ignition coil into each cylinder and starting it.
Up each time. None of them seemed to make it better. Also the injectors all seemed to be good. So what to do ?
2002 Ford F-250 5.4l
I have a 2002 F250 with 189,000 miles. Im having some very bad issues that im trying to fix. The truck idles rough, with fluctuating RPM's. In certain speed reanges it also shakes and runs rough. If I turn the overdrive off the shaking pretty much stops, but it still accelerates pretty slowly. There is also a whistling noise from the front of the truck until the engine warms up, someone told me it sounds like a bad intake manifold? Does that sound right? What could be going on with my truck? All spark plugs and coil packs have been replaced, as well as the fuel injector rails.
View 2 Replies99 5.4 F250
Well, this truck i have had many many codes before. I cleared them and all went away except for p0155. I fixed my manifold leaks and cleared the codes. It came back on and i changed the o2 sensor, twice. Still on.
Ive checked the heater and input wires to the pcm and have .6 ohms each, so they are good with what appears to be no shorts. I dont know how to check the other 2 o2 sensor wires.
Any such system in which they can take the key out of the ignition while leaving the vehicle running? I'd like to be able to do this for security purposes of my brand new 2015 250 if I have to run into a store or something of the like. I don't like the idea of leaving the key in the ignition and locking the doors as anyone could break the window and drive off with the truck.
View 7 RepliesI got a 2000 f250, 5.4l, I got a check engine light bout 2 weeks ago and didn't experience any driving issues. The code was p0171, just recently I've been experience troubles idling, if I let my truck idle for about 3 minutes it will want to shut off, also on acceleration the hole truck bumps, feels like I'm in an earthquake. Where I should start with this problem?
View 11 RepliesI changed the IAC valve 2 months ago because my truck kept stalling when idling down on a cold start and that fixed the problem. A few days days ago when starting it started revving to 2 - 3 K and won't IDLE down now? I changed the IAC again and that didn't work. What else should I be looking at to stop it from revving so high?
2001 F250 5.4 111,000 miles super duty.
I have a 2003 f250 xlt with the 5.4l engine in it and lately my AC hasn't been standing up to the heat of the Midwest. When driving around town or on the highway my AC blows really cold but at idle you can tell a drop off in temp. Is this normal due to extreme heat or is there something I can do?
View 12 RepliesI have a 2008 f-250 4x4 extended cab, I picked up a set of black rock steel wheels 17x9. I now have 265 70 17s on my truck. will these wheels work and with what size tires.
View 4 RepliesOn the F250 trucks, if I changed the mounting frame under the seat, will the passenger side seat fit on the drivers side? Basically, can I turn a passenger seat into a drivers seat?
View 4 RepliesI would like to know what's happening, it seems as if idling for a minute to let my transmission temperature dial raise past the lowest line on the dial fixes or at least drastically reduces a couple issues.
The truck will deliver power much smoother off the line. I've been concerned about this for a while. The degree to which it happened wasn't constant but it seems like the truck is having trouble grabbing on (so to say) to the power coming off the line. I sort of liken it to a rope. When I give it the beans the rope goes forward but it takes a half a second or so for the truck to "grab" on to the rope. Never hard shifts, it's just delivering the power off the line or from a near stop.
Idling for a minute seems to fix this, power delivery is smooth off the line. Transmission dipstick was nice and pink but smelled slightly burnt. This is with the engine cold overnight. Didn't have time to do multiple wipes or check in the handbook for the proper methods of checking fluid, I just pulled it out quickly to take a look before heading out. Fluid covered the whole tip.
Second issue that seems to be fixed is that the battery light doesn't come on nearly as much and not for nearly as long. Typically the battery light will come on and off seemingly on its own whim during the drive. However, it seems to stay more consistently off if I idle right after startup.
Now bear in mind I baby my truck, I don't rev it high right after startup. Just low enough to cruise around the parking lot until I hit the road then I accelerate up to 40 - 60 depending on my route. I'd gladly give it the minute to warm up in the future but if I could get down to the bottom of this that'd be preferred, I doubt this is required behavior.
I do realize that these issues are not tied to startup behavior but I find it interesting that idling for a minute at startup to let the transmission gauge rise seems to mitigate these symptoms.
I noticed my truck makes a high pitched whining noise. It does it at idle and while acceleration up to 40 mph or so. The pitch of the wine increases with RPM'S. It is not the cold start whine issue I have researched on YouTube.
It is in the cold or warmth. No difference. It's always there. My 2012 6.2 did not sound like this at all. I have crawled under the truck and it appears like it is coming from the transmission.
I've been battling this high temp issue for a bit now. Here's the recap on my truck.
2005 F250 6.0
120k miles
Edge insight CTS2
New factory Oil cooler
motorcraft coolant -system flushed
Stock EGR- No leakage
Deltas 3-5 degree apart no A/C on
A/C works great!
-Issue- When I turn the A/C on city on normal driving no loads or towing. The temps have gone up as high as 230 eot 230 etc. Ambient temps 83-90F ....
What is the proper tire pressure for these trucks (F250)?
Sidewall says max is 80 PSI.
Door jam says 71 PSI.
This is coming from a guy who has traditionally driven passenger cars and trucks. I've never even gotten CLOSE to advertised max PSI ratings. 71 seems awful close to max PSI.