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wild vents solved!!!!

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  #21  
Old 12-13-2020, 12:03 PM
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Yeah, the cruise servo is under the battery, and it suffers from that location. Best bet is to have a look at it, and see if it hasn't been damaged.
 
  #22  
Old 12-13-2020, 12:56 PM
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Originally Posted by HeyYou
Yeah, the cruise servo is under the battery, and it suffers from that location. Best bet is to have a look at it, and see if it hasn't been damaged.
When it stops raining I plan to look at it again. How can I tell if the servo is bad?
 
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Old 12-14-2020, 08:42 AM
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If it was damaged by the battery, it will be obvious.

Otherwise.... I think it is two solenoids, and a vacuum servo.... PCM just manipulates the solenoids to hold the throttle where it needs to be.
 
  #24  
Old 12-15-2020, 06:47 AM
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Originally Posted by HeyYou
If it was damaged by the battery, it will be obvious.

Otherwise.... I think it is two solenoids, and a vacuum servo.... PCM just manipulates the solenoids to hold the throttle where it needs to be.
I checked the servo and it appears to be good. The vacuum line is good and the cable to the throttle body is good. Where are the servos located and can I test their functionality?
 
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Old 12-15-2020, 07:57 AM
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Solenoids are on the cruise servo. No clue how to test it..... might be something in the service manual though. (do you have one yet? If not, get yours here.) Think I would be tempted to test the switches next.
 
  #26  
Old 12-15-2020, 08:22 AM
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I just downloaded the shop manual for my truck and discovered there is a vacuum reservoir under the cowell grill. I plan to look at that after the sun comes out and it warms up a bit, this texas boy gets cold easy.
 
  #27  
Old 12-15-2020, 08:31 AM
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Couple check valves in the lines as well.
 
  #28  
Old 12-15-2020, 09:37 AM
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Originally Posted by HeyYou
Couple check valves in the lines as well.
Yep, the first thing I did was replace the check valves.
 
  #29  
Old 12-17-2020, 03:06 AM
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So I replaced the vacuum reservoir with a new one and still no luck. I've heard the brake light switch can sometimes cause the cruise to not engage.
 
  #30  
Old 12-17-2020, 03:24 AM
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Originally Posted by HD Kowboi
So I replaced the vacuum reservoir with a new one and still no luck. I've heard the brake light switch can sometimes cause the cruise to not engage.
Only if your brake lights are on. You sure it's not the switches or a vacuum leak?
 


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