[V8] Re: PROBLEM #2: CRUISE CONTROL
knotnook at traverse.com
Thu Jun 24 11:02:43 EDT 2004
If you have a copy of the shop manual, cruise is under "engine electrical" and
it's section 27-120 for troubleshooting the cruise system. On the V8 there's a
strong link between transmission electronics and the cruise.
Some general cruise info I've absorbed: Common problems are associated with
the brake/clutch switches (clutch doesn't apply here), leaky or broken vacuum
lines, failed vacuum motors and their servos, etc. On the V8, there's a rod
connected to the throttle that passes through a plastic grommet that breaks
from heat/age and can cause the rod to jam with the throttle open or closed.
So some V8s have had the rod disconnected. You can buy a new grommet for a
buck or so. This linkage and the servo are accessed from beneath the air
At 07:55 AM 6/24/2004 -0600, Brad Hartman wrote:
> First of all, many thanks to Kneale Brownson for his suggestion to examine
> the wiring going from the main cabin through the opening into the driver's
> side door. Lo and behold, two wires were completely severed, including the
> power cable to the sun roof. PROBLEM FIXED.
> Now, on to my cruise control. Just doesn't work. First of all, could there
> be any wires that pass through the same opening as mentioned above that may
> be cut (and I may have missed)?
> Any other places to start troubleshooting would be appreciated.
> Many thanks,
> Brad Hartman
> 1990 V8
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