Join Date: May 2006
Location: Valley City, North Dakota, USA
A few weeks ago I wrote in if anyone had any ideas on what could be wrong with my Factory Cruise Control on my '87 Aspencade. The problem was, after it was set, the speed would drop about a mph every 5 seconds or so.
I used a vacuum hand pump to check the actuator, acummulator, and control with all of them holding vacuum. I took advise to check all electrical connectors-OK. I checked voltages at the controller and individually fired the 3 solenoids-OK. Man...what could it be? I purchased a complete cruise set up less the computer on ebay-$25(oh well) thinking it could be acummulating problem from all total components...WRONG! Still had the same problem! The problem seemed to be pointing at the computer (another $60 to $80 on ebay-NUTS). But before I committed to buy a computer, or buying an aftermarket cruise, I went to check my source vacuum from the engine.
What appeared to be a normal looking vacuum line right off the vacuum tee of the left rear cylinder, was a small 1/2" of rubber vacuum line that stayed collapsed when I squeezed it. It was very musshy in feeling and was at the low dip(probably where crankcase vapors condensed and left laying there eating away at the rubber hose. I cut off the bad spot, and temporary hooked it back up to the tee, until I replace the whole line.
Now, it works perfect! My numb throttle fingers thank me and scolded me for not Keeping It Simple Stupid! Thanks for all the great suggestions, tips, and advise!
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