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Cruise control disengages - hard lockup



Hi all,


I have a '95 GMC K2500 Suburban with the 6.5TD.


I'm having a weird problem, propably related to bad connections but I'd like to know your opinions.

When driving off, and engaging cruise control, it sometimes disengages after about ten minutes of driving.

Sometimes when trying to engage the cruise control after ten minutes of driving, it won't.

I notice a hard shift when locking up also.

Almost always it can be cured by shutting off power and restarting.

Then the cruise control works fine and lockup also works fine and smooth.

Another weird problem is that sometimes, but not as often as the cruise control, the tranny won't shift to from second to third.

Again this can be cured by cutting power and restarting.

Does anybody have any idea where I should start looking.


Can anybody tell me where to find a good manual, since their almost impossible to find over here in Belgium.




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