01 f250 7.3 chirping??? - Ford Powerstroke Diesel Forum
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Old 04-29-2011, 03:23 PM
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01 f250 7.3 chirping???

i know im probably beating a dead horse here...but i didnt really see anything exactly like what im hearing.


when i start the truck cold or warm, there is absolutely no chirp...but when i put it in gear and start to go, its kind of faint chirping, and gets steadily louder as it warms up.


it wont do it in park or neutral even if revving it all day long

its the loudest around 1300 rpms while driving and if i give it more gas you cant here it, and if im coasting along and you hear it, i can put it in neutral and it goes away.

ive checked the pulleys, none of them seem to have excessive play, but this is my first diesel, so im a newbie to the problems that arise from these.

also, its got a diy intake, 4" turbo back, and ts 6 pos chip....8 inch lift, with 37s.
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Old 04-29-2011, 10:07 PM
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mine chirps too when in gear, but it's the belts. my 04 scion xb does this as well, and only when in gear. in park you don't hear it, and you can't really hear it as much if you put the emergency brake on while in drive, and get out, and pop the hood, but when at a light i hear it, idling in reverse, and sometimes on accleration. they quiet down a bit after it gets warm, and i mean very warm like after at least 10 minutes of driving.


ever check the water pump though? mine made a weird noise, but it made it always whether in park or drive or reverse.
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Old 04-30-2011, 04:51 AM
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i might just change the belt for peace of mind, but im pretty positive it wont be that. belts like to chirp whether theyre in gear or not. i dont hear it when im in gear and sitting at a stop, i have to be under a slight load or a moderate load to hear it.

ive thought about the water pump, but dont know how to check it to make sure, and ive learned my lesson about buying things that seem like they fix things, and find out it something super easy and cheap.
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Old 04-30-2011, 07:09 AM
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try putting a screwdriver near the water pump, and listen. the belts on mine chirp when i start it up, and when i'm in gear. i don't know why. i have had to replace my water pump like 4 times in the last year. well maybe a little over a year. i think the end of 09 was the first time, and it was some cheap brand i've never heard of. it was around christmas time. it had been in the truck before i bought it. the owner said he had just replaced it when i bought it at 91k miles, and the truck was in the upper 140s then so it got 55k-60k miles. i replaced it with the northern auto parts pump my buddy recommended me, and it has a warranty, and i've replaced that 3 times under warranty. most recent time was only 2 maybe 3 months ago. the bearings will start making a really high pitched noise. i already said if it goes again i'm gonna eat the warranty, and just buy another brand. my buddy says his has over 60k miles on the pump, and it's still good. i haven't had one last more than 5k or 6k miles yet.
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Old 04-30-2011, 09:06 AM
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what doesnt make sense is why it only does it in gear and moving? and if it was the waterpump, i dont see why it wouldnt do it all the time.
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Old 04-30-2011, 04:31 PM
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bump*******



im also going to note, i washed my truck today and afterwards the chirping stopped for a few hours...no chirp at all, so im kinda leaning towards a belt right now...no i didnt spray the engine, guessing a bit went through the grill or from under
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Old 04-30-2011, 09:03 PM
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my 04 scion xb only does it in gear, but it's very quiet. it does make a little chirp when starting the car as well. it does it idling in gear as well, but not in park. that car does a lot of weird things in gear like the air box shakes like it's having an aneurysm in gear. still shakes out of gear, but real bad in gear.


i hear the belts on my powerstroke sometimes, but very quietly. the water pump was a nasty whine at all times. i don't have a video phone, but if i did i could have gotten some good footage of the 3 times it's gone out on me!
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