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#1
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85 300SD Cruise Control
I checked the DIY links but could not find anything there so here goes. The cruise control work intermittently. If I am going down the road and engage it sometimes the throttle will increase and as soon as I release the stalk it goes off. Other times it works like a champ. Does anyone have a diagram for the layout of the cruise control. Is it vacuum controlled ( replace all vac lines ?)
electrically controlled ? Where does it get input from etc. Thanks Alan
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92 500E Silver 66k 82 Porsche 911SC 84K 68 Cadillac ( Gone Now ) 03 Suburban Z71 200K 85 300SD 217k From Original Owner ( Dad ) |
#2
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The usual culprit is a failing amp, (cold solders, I would think) located on the steering column. It's all electronic.
A pic here Cruise control amp 83 300d A silver box with a smaller one attached, it's easier to take 'em both out.
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83 SD 84 CD |
#3
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Bob, Thanks. I will take a look at it. As I said it works intermittently.
Alan
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92 500E Silver 66k 82 Porsche 911SC 84K 68 Cadillac ( Gone Now ) 03 Suburban Z71 200K 85 300SD 217k From Original Owner ( Dad ) |
#4
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Some place will fix 'em, only if you didn't try first. I have those two laying around.
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83 SD 84 CD |
#5
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If you are at all handy with a soldering iron you might try resoldering all the amp connections..I did 3 years ago and it is still working fine...
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83 300CDTurbo 307,000 2005 Honda Element 266,000 56 Nash Ambassador Country Club Special 34,000(under restoration presently) http://www.peachparts.com/shopforum/car-audio-multimedia/125099-123-install-extreme-dynamat.html |
#6
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Do you on the circuit board itself or the connectors ?
Thanks
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92 500E Silver 66k 82 Porsche 911SC 84K 68 Cadillac ( Gone Now ) 03 Suburban Z71 200K 85 300SD 217k From Original Owner ( Dad ) |
#7
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Search for "cold solder".
Here's one, I meant re-flow, not re-low. http://www.peachparts.com/shopforum/sitemap/t-278861.html
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83 SD 84 CD |
#8
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I had the same problem with my 86 SDL
I thought it was the switch (lever) so i got one from the PNP since it was cheap the "new switch" made it work more often but it would speed surge sometimes sometimes it didn't work at all other times it would catch and work so i put a cruise amp (AL. box about 9in.x4in.x 1in. located behind parking brake release and a little to the right..for those who might not know where it is) from an 85 SD and now it works everytime |
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