Cruise control causes loss of power?

[Pawpaw]

I'm wondering if anyone else has noticed this or can explain it.



For argument's sake, lets say my cruise has been set at 50, then I slow down or stop. When I take off again, if I hit resume at, say 40, it feels like the truck immediately looses power. Not a complete loss of power, it's just not accelerating as fast as it was a second earlier.



If I'm running on cruise, then accelerate with the go pedal, everything seems OK. If I press the cancel button, it almost feels like the turbo kicked in.



In both situations, it is a very noticable increase/decrease in power.



None of my gassers ever acted like this!



Bob

 

[rbattelle]

The situation you describe is hard to imagine, but it could be your transmission being in the wrong gear. Like it's in O/D at 40 and when cruise takes over it stays in O/D, making acceleration sluggish. But when cruise is off and you're using the pedal, the transmission downshifts to 3rd, so you get better acceleration.



Just a thought.

 

[Pawpaw]

On the way home tonight I played with it some more. In 3rd or OD with the TC locked-up, the truck seems to loose power when the cruise is engaged and gains it back when it's disengaged.



It's not downshifting or even going in/out of lockup, it's just a power change. It almost feel like I applied the brake when I engage it. Likewise, it feels like I released the brake when I disengage it.



I have noticed that if I hit "resume" and take my foot off the accelerator before the truck gets up to speed, it seems slow to accelerate. I've never liked a cruise control that "races" to the set speed, but this one seems unusually slow.

 

[ttreibel]

Ive noticed that the cruise is way more than the old brick on the go peddle.



I haven't had the loss of power but i have noticed that the computer must do some injection wizardy while ingage because the truck seems to sound different and I pick some MPG. I haven't got it nailed yet but I think your on to something, my truck had a recall on the computer related to cruise I have a 10/2002 build