leo319
Member
Hey everyone, I'm here to ask for feedback and find any similar experiences. Here it goes..
I just got back from a camping trip this afternoon and I noticed a strange noise when driving uphill and putting the truck to work. The best I can describe the noise is as if the engine fan was turned on at all times, but louder and almost "howling" as the rpms go up and down. These happened as I got close to the lake and started to climb some steep hills (before those hills, I drove about 1 hour of freeway without issues). About 30-45 seconds into the first grade I began to notice the noise.
The noise is definitely different than the regular sound a Diesel engine gives. I did not lose power, and did not overheat. I climbed other grades without issues. As I made it down, I noticed the engine brake was not working and the noise remained. When I arrived to the campsite, the temperature was back to normal but the noise was still there (obviously not as pronounced as the rpms were not as high). I drove around the campground on flat roads and the noise remained. I set up camp, and turned the truck off a few hours later and it was back to normal.
I was doing about 30-35 mph when climbing, 97 degrees outside, A/C was on, coolant temperature climbed from 194 to 206 and stayed within normal range, the turbo worked normally at about 15-20psi, the tow/haul mode was on.
On the way home, the truck seemed normal but the name noise came up soon after the first climb (18-20mph) and the engine brake was stopped working. The temperature stayed the same as there were much fewer climbs, and the temperature was 72 degrees. I also turned off the A/C this time, but no changes\. On the way back there are more downgrades then uphill. The noise when away after 20 minutes of driving a flat road to get to the freeway. Once in the freeway all was normal, including the engine brake.
The truck was at max payload with a heavy camper on top of it, and I was towing a 5k pound boat. Truck only has 4k miles on it, and I've never noticed any other noises. 6.7 with the 68rfe tranny. The tranny recall has been done. Truck is completely stock.
Thank you in advance for reading the post, and I hope I hear some feedback or people with similar experiences. The truck does not make the noise when not loaded, so my fear taking it to the dealer is that it won't do what it did when climbing loaded. They've told me before they can't do anything without codes or if they can't make the truck mimic the problem.
I'm sorry for the long post, thought I'd explain as best as I could.... Thanks again.
I just got back from a camping trip this afternoon and I noticed a strange noise when driving uphill and putting the truck to work. The best I can describe the noise is as if the engine fan was turned on at all times, but louder and almost "howling" as the rpms go up and down. These happened as I got close to the lake and started to climb some steep hills (before those hills, I drove about 1 hour of freeway without issues). About 30-45 seconds into the first grade I began to notice the noise.
The noise is definitely different than the regular sound a Diesel engine gives. I did not lose power, and did not overheat. I climbed other grades without issues. As I made it down, I noticed the engine brake was not working and the noise remained. When I arrived to the campsite, the temperature was back to normal but the noise was still there (obviously not as pronounced as the rpms were not as high). I drove around the campground on flat roads and the noise remained. I set up camp, and turned the truck off a few hours later and it was back to normal.
I was doing about 30-35 mph when climbing, 97 degrees outside, A/C was on, coolant temperature climbed from 194 to 206 and stayed within normal range, the turbo worked normally at about 15-20psi, the tow/haul mode was on.
On the way home, the truck seemed normal but the name noise came up soon after the first climb (18-20mph) and the engine brake was stopped working. The temperature stayed the same as there were much fewer climbs, and the temperature was 72 degrees. I also turned off the A/C this time, but no changes\. On the way back there are more downgrades then uphill. The noise when away after 20 minutes of driving a flat road to get to the freeway. Once in the freeway all was normal, including the engine brake.
The truck was at max payload with a heavy camper on top of it, and I was towing a 5k pound boat. Truck only has 4k miles on it, and I've never noticed any other noises. 6.7 with the 68rfe tranny. The tranny recall has been done. Truck is completely stock.
Thank you in advance for reading the post, and I hope I hear some feedback or people with similar experiences. The truck does not make the noise when not loaded, so my fear taking it to the dealer is that it won't do what it did when climbing loaded. They've told me before they can't do anything without codes or if they can't make the truck mimic the problem.
I'm sorry for the long post, thought I'd explain as best as I could.... Thanks again.
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