speedo eratic does it effect cruise control?

[RESTORE89]

my speedometer is 10 mph over actual speed and the needle fluctuates from 1-3 mph. will this make my cruise control surge?, or do i have a cruise problem?

It needs a bigger motor.
what's in it now?
doen't matter it NEEDS A BIGGER MOTOR
89 350tbi/700r4h/np208/4.11's

 

[TorkDSR]

i know mine runs off engine vacuum, and i think the tbi does too, so no it shouldnt matter


beligerence doesn't justify intelligence.
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<font color=red>79k15/400/700r4/205/38.5</font color=red>

 

[dyeager535]

When the cruise went electric, (early to mid 80's on trucks IIRC) I'm 99% sure that VSS was integrated, so yes, cruise is affected by a bouncy speedo. (cable) Vacuum was still used however, but just to hold the throttle position.

Dorian

Dorian
My tech/links page: <a target="_blank" href=http://www.dorianyeager.com/index2.html>www.dorianyeager.com/index2.html</a>
Why insist on counting when the ring gear has the tooth counts stamped in?

 

[pcorssmit]

Yes, the bouncing needle will. The speedo error will not.

Pete

'83 K5, 350 TBI (ex 6.2), 700R4, NP208, Dana 60/14 bolt, 4.56s, Detroits, 3" lift, 15-39.5x15 TSLs
'97 Dodge 2500 4x4 CC LB Sport, Cummins 5 spd

 

[Thunder]

Yes it will.The cruise on My 89 surged real bad espically on a cold morning I had about a 5 mph fluctuation. I took out the spedo cable, cleaned and lubed it up good. That stopped the bouncing spedo needle and the surging also stopped. Cruise works great now.

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