No clutch engagement. Jumped low pressure switch, still no. Checked for power at the compressor and the high pressure switch. No power. The hps is 4 wire, what should I have for voltage? History on the system is I put a new napa compressor, dryer, orifice 1 year ago and it has been fine up to now. Where to start?
View 2 RepliesThe fan clutch will come in and out rapidly when NOT in OD and pulling hills with the fifth-wheel attached. Replaced with a new aftermarket fan, then a new OE one. Then had the radiator pulled and all the bugs, etc. blown out. The condition has not changed at all. The original fan clutch was pretty sloppy. There are no codes, the trans fluid is nicely red, the engine does not overheat or even change temp when pulling hills. No check engine light ever. The truck is a 2001 F250 4 X 4 automatic extra cab with 7.3 engine without any modifications and runs perfect except for this. There are about 95k miles on odo. When we use overdrive on the flats, there is no issue.
View 12 RepliesI just bought a 99 f250 super duty with 6 speed and it has clutch problem the clutch pedal goes about 1/3 of way down then drops to the floor and stays. I pulled slave cylinder and it has just as much resistance as a new one. my other thought was a spring internally in transmission. any other thoughts or do I just need to replace the clutch?
View 2 RepliesMy AC has been acting up. It blows real cold most of the time, but every now and then the clutch kicks out (even at highway speeds), and it blows warm. If I accelerate, the clutch engages, and it blows cold again. If I decelerate, it stays disengaged. At idle, it will do the same, sometimes cold, sometimes no clutch. I added a can of 134 last week, didn't make a difference. I hooked up the manifold gauges today, and the low side was 45psi, the high side was 160psi. I let a little freon out of the system until the low side read 35psi, but the high side went down to 150psi. If I'm correct, the low side should be between 30 - 40, the high side 225 - 250? Why I'm seeing 35 and 150???
View 2 RepliesI just bought my first Ford. Its a 2003 F250 SD with 5.4L, 5 speed manual, extended cab, 2WD. The truck is experiencing intermittent problems with the clutch pedal.
If I depress the clutch pedal for a long time, then sometimes it does not retract all the way. It does this, for example, when I am at a traffic light waiting for the next opportunity to make a left hand turn.
The truck runs and operates as it should even when this does happen. The easy response is to place your toes under the clutch pedal and pull it aft to its completely released position.
The master and slave cylinder and the booster spring attached to the clutch pedal assembly have been replaced and this condition still continues.
What EOT temp should the fan clutch kick on at? I've never heard it kick on until a recent trip. It seems to go on about 228 degrees EOT and keeps the EOT below about 232 degrees.
At slow speeds I've found that the trans will heat up to this temp too. I assume because the radiator cooler is at that temp an there's not enough air flow for the air cooler to cool it down much?
Odd question, but the a/c clutch has always engaged randomly even though the a/c is not on and even now when the heat is on. Is this normal?
View 7 RepliesI have a 2003 6.0 and I got a scan gauge recently to monitor the fan speed rpm's.
When the engine is running at 2500 rpms the fan speed is only at around 350-400 rpm's.
I did have a code for IAT 2 circuit high I think I read that the egr is disabled when the iat 2 sensor is getting more than 4.8 volts.
Can a bad iat 2 sensor, egr valve or icp sensor cause the fan not to function properly?
Is this the sign of a bad fan clutch? I can spin it by hand,and it goes round and round.Can I drive it like this until I replace it? I am only driving 30 miles round trip at night, not towing and outside temperature is usually about 100 degrees.
View 6 RepliesIts freaking hot! Only getting about 65 degrees out of the vents at best. If I start up and let idle the a/c clutch goes on and off but not after i rev up the engine or drive a little ways . plenty of freon, and the air gap is tight with .020 and .021 feeler gauge. Should I still pull one of the shims? or is it something else? Last summer the truck was like a meat locker. I did have to add some freon about 6 weeks ago but seems to be holding ok...
View 14 RepliesIn my 99 with a zf6 it seems like when I push the clutch to the floor it's not disengaging all the way. It has a newer valair clutch in it maybe 15000 miles on it. It's really hard to get the truck in reverse or first from a stop. If the truck is stopped and it's in reverse or first with the clutch to the floor it will move in that gear. Is there a adjustment on the clutch? I'm thinking no since its hydraulic....
View 14 RepliesWell, I think my clutch is falling apart. I am hearing an intermittent nasty noise coming from somewhere in the bell housing/oil pan area. It comes and goes, but seems to be more frequent lately. It sounds like a dryer that somebody threw a pair of sneakers and some rocks in; with a metallic clunking noise of something being "churned" around. As I said, sounds almost exactly like the dryer thing.
The clutch does not seem to be slipping, but I do occasionally have difficulty getting it into gear at a stop. I'm guessing that the clutch disc has thrown a hub spring, and its rattling around in the bell housing. Assuming I need a clutch; which I think I do, I need selecting one. I have no history on the clutch or flywheel, so I will assume that I need a new flywheel to match whatever clutch I get.
I can't get a stock replacement, due to the injectors/chip/etc.... I would estimate I am making about 350hp/700ft-lbs. I don't tow currently, but I may pull a car trailer in the future. I DO haul heavy loads in the bed (4,000lbs) on a regular basis. I also drive/shift aggressively, as well as shifting quickly. While I spend a decent amount of time on the highway, I also do a lot of stop and go stuck in traffic driving; so smooth engagement is important. So, no ceramic/ceramic in/out type clutches.
I do NOT want a South Bend. I don't want a super soft pedal. Also, the whole pedal-sticking-to-the-floor thing they mention is unacceptable. Personally, I think they should be ashamed of themselves for putting out a product with such an obvious unsafe design/engineering flaw, and then try to explain it away as "normal". Nope. They need to go back to the drawing board and fix that. As I said, it constitutes a serious safety hazard.
I'm getting ready to swap my clutch and got to looking at the slave cylinder. I read somewhere that you have to rotate and twist it to get it out? Or something else? Also after reinstalling how do you get the slave plastic piece cut that holds the rod in? Or do you just push the clutch?
View 4 RepliesI just finished a cab swap and I'm having a little trouble. Here's a link to what I've done : [URL] ....
KOEO the WTS light, battery light, SES light all stay on and no power to fuel pump. No communication with PCM (using AE). All fuses are good, but no power to PCM fuse (#22). When I apply 12v to #22, the truck will start and idle - but poorly because I still don't think fuel pump comes on. The idiot lights all stay the same.
I did get to pull codes while it was running and got stuff like IAT circuit high (its not plugged in), fuel pump relay short to batttery, and a few other short to battery things (park assist stuff IIRC). I thought that might have something to do with the redneck idea to boost the fuse with an external power source?
Just thinking while typing, I don't have 3rd brake light hooked up yet (just thought of that, I'll hook it up first) and bed/bumper are not installed, so no tail lights or park assist stuff is hooked up. I'm also not using overhead computer, so it's not plugged in.
My next step is to go back through all of the connectors and make sure something isn't 1/2 way plugged in or possibly plugged into the wrong place(s).
Looking thru the wiring diagrams is not a strong subject for me, but I was trying to figure out how power gets to the fuse and how PCM relay works (does it complete circuit to ground to energize the coil?).
I will start with what I have done to my truck. Hutch and harpoon mod, fuel pump, new orings on fuel lines, fuel filter, air box, 4" exhaust. My issue only happens when my engine is warmed up and I put it under a load(driving up a long hill or pulling up a long hill). My truck starts to shudder and feels like missing until it looses all power to where it won't even pull itself and will just barely idle. It doesn't die though. I watch the engine oil temp and it seems to be around 195-200 when it occurs. I can turn the truck off and let the oil temp cool to 150-160 and then start the truck up it will miss for a second then clear up. I will start driving again and it seems fine until the oil temp gets up and start putting it under a load. I have read many posts and can't figure out exactly where I need to start. Some of the codes I pulled are P0603, P0470, P0732, P0542 and P1211.
View 14 Replies1999 f250, 280,000 miles. I use Power Service with every tank, oil changes every 3500. Had a few of the injectors changed several years ago after getting bad fuel. Tranny "built" when rebuilt, about 60,000 miles ago.
Truck starts and drives every time, no miss or rough idle, no smoke. Just not as much power. It downshifts sooner and really seems to resent towing my atv trailer. Where do I start ?
OK . So here's the deal. My 2000 7.3 ford f250 170k miles. Going from phx az to flagstaff az . For some reason I'm hitting about 40 miles per hour with the pedal all the way down going up a decent grade. Seems like something isn't giving the motor power. I'm pulling a 28 ft toy hauler pretty much empty . Under 5800 pounds . What this could be . Also was get pretty close to the red on water temp gauge.
View 14 RepliesAs I'm cruising once I hit about 50mph I start getting a vibration in the peddles and floor board. It's not real bad but noticeable for sure. When I hit 70mph it's worse and the truck even sounds like it's vibrating. As soon as I let off the peddle and coast everything is golden.. Smooth.. So it seems to be a problem only under power..
A little back story : About a year ago I was getting bad vibration and loosing power. I put it in the shop and the mechanic said the filter or screen in the gas tank was clogged so he cleaned it. I went to Korea for a year so the truck sat in government storage for a year. When I got it back in March I put in back in the shop to have the front passenger side hub replaced.
I don't know if any of that has to do with the vibration I'm getting now.
Truck
2003 F250 ext cab
7.3l
179k miles
There was no power getting to the fuel pump on my 2002 Ford F250 73 diesel traced it back to the inertia switch no power in or out but I'm getting power at the fuel pump relay put the code scanner to the PCM and no communication....
View 9 RepliesWhat is failing. I have a 2000 F350 PSD with 116k miles. When I bought the truck last year, I noticed that the clutch pedal would squeak while it was coming off the floor. It doesn't happen when the engine is cold. I need to drive it about 30 min before it starts to happen. On longer trips, several hours, the squeaking is louder and the pedal gets very stiff. When I stop for fuel, I've come close to stalling when coming out of 1st gear. I can push the pedal to the floor, but on the way up, the pedal squeaks, and then once I reach a certain point, say 3-4 inches off the floor, the pedal looses all freeplay. The best way for me to describe it is the pedal travels up faster than it normally does when it's cold, and if I don't compensate with more throttle at that point, it will stall.
I've learned a lot by reading this forum for the past year, but I don't know the first thing about how to diagnose problems like this. I've taken it to 2 mechanics for test rides -- one thinks the clutch is fine and thinks the problem is the slave cylinder or a broken bushing in the pedal.
The other shop is also a small independent shop, but they specialize exclusively in Ford trucks, so I thought they would be more knowledgeable. But now I'm wondering if they could sense my ignorance and are taking advantage of the situation. They also took it for a drive, but they think the slave cylinder is fine and that the clutch needs to be replaced. I questioned him about the slave, and he pulled it to look at it, and asked me to push the pedal slowly while he was under the truck. I still had a little resistance and a faint squeak even in this situation. But he said the hydraulics are so simple that he felt we could rule that out. I can't remember exactly what he said, but I think he believes one of the springs in the clutch plate has failed. I just know they are suggesting a new clutch and they want to machine the flywheel to original specs.
I thought the leading symptom of a failing clutch was slippage under a load. So under strain, I would expect my engine to race occasionally, like I'm in neutral. But I've NEVER experienced anything remotely like this, even when driving hard in the hills pulling my travel trailer.
I know something is wrong, but based on my limited knowledge, I'm not sure what. It's getting a little harder for me to move the shifter into 1st and reverse, but once it's there it's fine. I've never experienced any racing or slippage in any gear. The one definite symptom I have is that squeaky pedal that when driven for a couple of hours, gets so stiff that it can cause near stall outs. With those symptoms, what do you think is going wrong?
On 2500 mile trip, no A/C last 400 miles and we're cooking
Compressor clicking on/off about every 5 secs, clutch smell. Seems to be turning okay.
I brought some tools, including a full socket set.
Can I pull the clutch and remove shims in the campground? Looking for a condensed version of how?
Worst case, how do I replace the clutch- of I can find a dealer with one?
Pulley and clutch fixed, but cycling on and off...adding freon?