Ford 6.7L Power Stroke Diesel :: Truck Makes A Metal On Metal Screech When Downshifting From 5th To 4th And 4th To 3rd Occasionally
Jul 22, 2014
I've had transmission issues with my truck that the dealers can't seem to duplicate. The truck makes a metal on metal screech when downshifting from 5th to 4th and 4th to 3rd on occasion. The two dealers claim they cannot duplicate the issue and there's no CEL so there's nothing they can do. The shifting is also super slow between gears and regularly hangs in 4th until I let off the pedal for a good two or three seconds. All gear changes are slow.
Now the truck is exhibiting a new issue. When coming to a stop, a second after stopping the truck faintly jerks forward. Almost like the torque converter is not fully unlocked.
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Getting the RV ready to go for the summer, and no a/c. I started to add freon, and found the leak right away.
It's on the 3/4" pipe that goes right over the upper radiator hose; obviously rubbing metal to metal caused the pinhole. Now I know where that mystery green snot came from all over my radiator hose coming back from Yellowstone last fall.
First thought was to replace the entire pipe. There's an easy threaded connector on the upper end, but way down on the compressor is a strange fitting that looks like a triangle stuck against a cube. I can't see how I'd get a wrench in there very easy anyway. What is that fitting?
I bought a Dorman 3/4" repair kit, but until it arrives in the mail I don't know if I've got enough straight pipe to work with. Do I need to add oil as well as freon once I charge the system again?
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I am in the process of replacing my water pump. After I removed the pump, I found quite a bit of metal-on-metal wear between the impeller and the water pump housing. Is this common?
I've been running a coolant filter on my system for years now, so hopefully its been effective at collecting some of the metal that has clearly been worn away. Either that, or this is a sign that the filter isn't working at all!
I'm a little worried that the new pump will scrape the scars left from the old pump.
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I have a 2011 Ford F-350 with 6.7L I have had cooling issues when pulling a trailer up a grade it heats up where it hadn't in the past. I had it in the shop 4 times before it went out of warranty and they changed the oil cooler and thermostat. The last time it was in the shop was November which it was to cold out to duplicate problem. It's heating up on just about every grade and now it's out of warranty when it should have been fixed last year.
I'm guessing it's the water pump because when I changed the antifreeze there was metal shavings in it. I told my dealer about it and they said it was probably from manufacturing. I haven't called dealer yet because I think it should be covered under warranty since the problem was never fixed after being in the shop last year!
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While I was changing the oil yesterday, I also changed the fuel filters. The primary filter had some debris that was confirmed by a magnet to be metal. I have seen a little bit of this all three times I have changed the filters. The filter itself is very clean, but there remains a small amount of metal slightly more coarse than filings.
I don't really have any concerns that it could be coming from the HPFP because that is after the secondary filter and would not be returned to the tank. Also anything from the HPFP would have fouled several injectors by now. I don't even think there is any iron in the pump.
I guess it could be useful to put a magnet in the water separator reservoir, but I don't even know what good that would do since the debris is large enough that it is being caught by the filter and of course the secondary filter is even less microns. It would just be nice to know where in the world this stuff comes from.
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I found 2 Ford OEM part numbers for what seems to be the same identical metal CAC Tube for the drivers side.
6C3Z-6C640-AA
and
6C3Z-6C646-BA
I wanted to place an order today for my '06 but want to make sure it's the right one. What is going on here? (maybe one is for a '03-04) I Don't know...
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Changed my filters and this was in the bottom of the filter housing. I looked on the pleats and down in the center didn't find anything. Went to two Ford diesel techs one said is was the hpfp and should do the the whole fuel system. The other said if the hpfp was coming apart the shaving would not be in the bottom of bowl and to check the filter again in 5k miles. No check engine light, drives great, no other problems.
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Are you supposed to reuse the old metal gasket or leave it out?
2006 F350 4X4
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I have a 2016 F350 disel with 2500 miles. It's at the dealer now they are telling me some metal shavings clogged one of the injectors. What should I be looking for?
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I have a 2011 f450 that I just bought and it has the plastic oil pan. I see that the newer 6.7 have the metal lower oil pan. Is there a good reason to change over to the metal pan? Is the 1/4 turn drain plug the problem?
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I have a 2002 Nissan Sentra (manual transmission). I recently started noticing this horrible metal screech/squeal/scraping sound when my car starts moving from a stopped position. It's the worst when the car starts moving after it's been still for a bit. I thought it was due to the cold weather because when it started getting warmer, the noise issue went away. Unfortunately, the weather is warm, and it's back in full force.
The noise almost sounds like the noise that some semi-trucks (or large buses) make when they press on the brake. But my car only makes the noise when it starts moving and it only lasts a few seconds. It also doesn't happen every single time, which makes it even more frustrating.
I've got about 115,000 miles on the car...
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I thought i heard this yesterday when i left work but i was tired and said its in my head, THEN i go to leave right now and sure enough its a real sound, you can hear it very well through the front grill and then if you turn the volume up you can hear a ticking sound ever half a second or so, it also speeds up when i was pulling on the throttle cable. And after the truck fully warms up it goes away.......
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I replace my brake pads and rotors in the fall of 2015 with EBC parts. Now almost 13,000 miles later, I started hearing grinding and metal-on-metal contact in the front. So I went out and got PowerStop pads to replace the EBC (EBC had way too much brake dust). I took off the front wheels and noticed that the DF pads had about 1/32 left on them, ok I guess its time to change them out. Onto the PF pads, I find that there is almost no material left, in fact I could scrap off what was left of the material. I decided to do a rotation while I am at it and noticed that the rear brake pads on both sides look like I never used them!! Is it really that possible to have 2 stuck calipers, both on the rear at the same time?
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What we have is a 2011 F-350 with the ambulance package (obviously) and it has started making a very annoying sound from the front end. It has been into two different Ford Dealerships and they have not been able to remedy this issue. What happens is, when we are backing and turning, the front end makes a bad metal on metal grinding noise. When going straight down the road no issue just turning while backing. I know this is an ambulance and has the ambulance package but I think from the cab forward should just be all ford right?
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I have an '02 Taurus. For the last year or so it has intermittently produced a metal on metal grinding noise while failing to start up. I'm told this is due to teeth being missing on the flywheel between the starter and the transmission. It's taken as many as six tries to get the car going. But the car has always started in the end.
My questions are: Is the problem flywheel worth replacing at this point at this price? Is it likely to fail totally any time soon?
Also, might the March '09 replacement starter be implicated?
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I have intermittent metal on metal grinding noise. Seems to happen when I am at highway speed. Seems to go away when I put it on 4 wheel drive or slow way down. On one occasion though, the grinding noise did not stop even after putting on 4 wheel drive - had to stop completely before it went away (did not come back after I drove off again). Diagnostics so far....
Unhooked the vacuum lines on passenger side actuator and hooked up vacuum gauge. Vacuum held at 20 psi and drops and raises slightly as the truck is being revved. Takes about 10 seconds for vacuum to drop to zero once truck is stopped. Putting it on 4 wheel drive drops it to zero immediately. Exact same scenario on the passenger side.
This leads me to believe my IWE solenoid is ok. So also my check valves. Next opportunity I get, I will raise one wheel, remove the vacuum line on that wheel and apply vacuum with my pump. Want to see if it will turn my half shaft.
2004 F150 FX4 ....
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My father's 1997 F150 with the 4.6 two wheel drive, has me stumped again. I have a lot of mechanic knowledge but this one has got me wondering whats going on. Here is the run down. When you are driving down the road, it rides just fine and makes no noises from 0-20 MPH, after about 25 to 35 mph it makes like a metal on metal noise that is coming from the rear, and forces the truck to slow down, when you try to accelerate through this problem it has a bad bang and it wont allow you to speed up anymore, it does not seem like a brake issue (but I could be wrong) since it does not actually pull to one side or the other.
It seems like an equal force trying to stop the truck. I have heard rear ends that were going out and they make clunk noises or whirring noises etc, but its still some what driveable. I have checked the rear end oil and it does have oil in it, and its probably about an inch from the full level (but that shouldnt cause this issue im sure). My father wants a definite answer before we start tearing this thing apart to try and fix it. Since its mostly used to take trash off, and also get the kids down the dirt road to the bus stop.
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Just last night, out of the blue, I've got an odd rumble at idle. The noise goes away under load and any time the rpm's are up over ~1300. It sounds like metal on metal vibration, but I don't see any loose exhaust parts.
I've looked at threads saying possibly a broken flex plate. Other than the noise, would there be any other symptoms? I don't notice any loss of power. I suppose I could pull the inspection cover and take a look, but I don't have any experience with auto tranny's and don't really know what I'm looking for.
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I have a loose, binding, metal on metal sound on my steering wheel shaft. I have removed the steering wheel, replaced the clockspring, because when I removed wheel clockspring was in pieces and I thought that might be the issue. Guess not, because I'm still having problem. Other than having to remove or replace the whole steering column...
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The brakes were sounding like metal on metal. Three wheels in, some of the pads needed replaced but none were worn out. I got to the right rear wheel and the inside pad is worn to the bracket but the outside pad hardly looks worn at all.
I'm already replacing rotors, pads and calipers (I wasn't going to replace the rear rotors or calipers until I got to this wheel). Is there anything else I need to check because of such uneven pad wear?
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I commute 180 miles a day, 6 days a week. I noticed metal on metal grinding noise(more noticeable) at high speed above 75mph especially on asphalt road. I'm sure noise is there at low speed but not enough to notice. My car has 50,000 miles. Tires? Electric motor?
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