Howdy folks,
So, I have been having some issues with my AHC recently and I just had the truck serviced at the Lexus dealer when I was visiting my folks over the Thanksgiving weekend where they replaced a wire harness that had ben ruined(the AHC had been stuck in normal for several months and I had tried to download TechStream and in the process I bricked a perfectly good laptop so I took the truck to my local Toyota dealer but they couldn't get into the AHC software)and the AHC worked fine for a few days but it has gotten very cold here and now the truck seems to struggle staying in Normal and won't go into high.
Occasionally when it is trying to adjust on it's own when I leave the truck idle in my garage or in my driveway I hear a groaning sound that sounds like metal rubbing against metal the way a hydraulic jack might sound if it had been sitting for a long time outside.
I have tried searching for what the source of this sound would be and I am busy on PartsSouq trying to figure out which parts would make a sound like that and I am just not sure. It sounds like it's coming from the passenger side but I can never get under there quick enough to see if I can narrow it down.
There must be some sort of hydraulic ram on these but I am too dumb to know which part.
Any insight as to what I should try focusing my attention to?
So, I have been having some issues with my AHC recently and I just had the truck serviced at the Lexus dealer when I was visiting my folks over the Thanksgiving weekend where they replaced a wire harness that had ben ruined(the AHC had been stuck in normal for several months and I had tried to download TechStream and in the process I bricked a perfectly good laptop so I took the truck to my local Toyota dealer but they couldn't get into the AHC software)and the AHC worked fine for a few days but it has gotten very cold here and now the truck seems to struggle staying in Normal and won't go into high.
Occasionally when it is trying to adjust on it's own when I leave the truck idle in my garage or in my driveway I hear a groaning sound that sounds like metal rubbing against metal the way a hydraulic jack might sound if it had been sitting for a long time outside.
I have tried searching for what the source of this sound would be and I am busy on PartsSouq trying to figure out which parts would make a sound like that and I am just not sure. It sounds like it's coming from the passenger side but I can never get under there quick enough to see if I can narrow it down.
There must be some sort of hydraulic ram on these but I am too dumb to know which part.
Any insight as to what I should try focusing my attention to?