Chrazyman
SDD Junior Member
Good Morning,
I have a 2002 F250 7.3L Crew cab short bed with 139,*** miles on it. About a month ago it began making a chirp / squeak sound under the hood. I parked it and scheduled it to go to my local diesel mechanic. They weren't able to get me in for a few days so I drove my dad's truck. The day before I was to take it in, I drove it to let my dad hear the sound and of course it stopped. I have driven it for the month since then with no issues, even towing my 8000# travel trailer 500 miles round trip in the mountains for a weekend getaway with the family. On my way to work this morning it began again. I have read numerous threads about belts, pulleys, tensioners, etc. but they seemed to have a constant sound. My sound is not rhythmic but intermittent. It is also accompanied by some light rattle sound which I can feel under my left foot. It does it when idle or under power but still there is no constant rhythm to it like I believe you would get with a belt whine. This mornings conditions are as such: 55 degrees and rainy out. The first time it happened it was 50 degrees but dry. There have been colder and wet days in between these two instances with no noises. My first thought is that the belt might be slipping. Any help is appreciated.
I have a 2002 F250 7.3L Crew cab short bed with 139,*** miles on it. About a month ago it began making a chirp / squeak sound under the hood. I parked it and scheduled it to go to my local diesel mechanic. They weren't able to get me in for a few days so I drove my dad's truck. The day before I was to take it in, I drove it to let my dad hear the sound and of course it stopped. I have driven it for the month since then with no issues, even towing my 8000# travel trailer 500 miles round trip in the mountains for a weekend getaway with the family. On my way to work this morning it began again. I have read numerous threads about belts, pulleys, tensioners, etc. but they seemed to have a constant sound. My sound is not rhythmic but intermittent. It is also accompanied by some light rattle sound which I can feel under my left foot. It does it when idle or under power but still there is no constant rhythm to it like I believe you would get with a belt whine. This mornings conditions are as such: 55 degrees and rainy out. The first time it happened it was 50 degrees but dry. There have been colder and wet days in between these two instances with no noises. My first thought is that the belt might be slipping. Any help is appreciated.
Chrazyman! I don't own a 7.3 but my guess would be the belt tensioner. I see you have looked into this, but you have about the right amount of miles on your truck for this to be a possibility. Hope you get it figured out soon.
