Hey all,
I was running my 03 Excursion today coming home from northern Michigan pulling our 33' Jayco trailer when the transmission downshifted while going up a hill and at 3000 rpm there was a high pitched , I don't know if I would call it a squeal but it sounded very metallic. The instant that the transmission up shifted and the RPM's went down the squeal went away. It did this twice. I'm wondering turbo or transmission?
Last year I put a Mishimoto oil cooler on the trans and it had a full flush and filter change about a month ago. Along with new engine oil, filter and I put on one of those hpop crossover tubes in it as well. The camper is about 6500-7000 lbs. The truck has been cared for meticulously by myself and the one previous owner. 245k miles. Is this too vague of a description to the noise or has someone else experienced it also?
I was running my 03 Excursion today coming home from northern Michigan pulling our 33' Jayco trailer when the transmission downshifted while going up a hill and at 3000 rpm there was a high pitched , I don't know if I would call it a squeal but it sounded very metallic. The instant that the transmission up shifted and the RPM's went down the squeal went away. It did this twice. I'm wondering turbo or transmission?
Last year I put a Mishimoto oil cooler on the trans and it had a full flush and filter change about a month ago. Along with new engine oil, filter and I put on one of those hpop crossover tubes in it as well. The camper is about 6500-7000 lbs. The truck has been cared for meticulously by myself and the one previous owner. 245k miles. Is this too vague of a description to the noise or has someone else experienced it also?