I am sorting out this 190D and one of the issues was dead cruise
control. When I first got it cruise was completely dead. I pulled the
amp and replaced the caps. It would engage sometimes and will hold for
a minute or so then would drop out. I pulled the amp again and replaced
the solder on every joint. In the mean time I also pulled the
instrument cluster to replace the fuel/oil/temp gauge. When I put it
back together the cruise does not work at all. I pulled the cluster
again and swapped the speed sensor in the cluster with a different one.
Took car out again and it seemed to be working perfectly for a minute.
If I get the car up to, say, 65 and set the cruise while in 5th gear, it
holds that speed fine. After about a minute or so it starts to lose
speed gradually. I can tell the cruise is still engages its like the
set speed just keeps going down. After the cruise is engaged if I push
the stock up to increase speed, it does not increase, it almost acts
like the cruise is disengaged until I let go of it then it engages again
at whatever speed it dropped to. If I push it forward to cancel, then
pull it back to reengage it does not go back to the previously set
speed. It seems to engage and whatever speed it dropped to and will
hold there then start dropping.
When I was on our street car was at about 50 in 4th gear and it seemed
to hold fine there. I really need to drive it some more and play with
it to get a better idea of its behavior but this is my initial
assessment. Any ideas?
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