1998 Dodge Truck cruise control

Tiny
DONNIE LAWS
  • MEMBER
  • 1998 DODGE TRUCK
  • V8
  • 4WD
  • AUTOMATIC
  • 10,900 MILES
My 98 Dodge 1500 pickup cruise control will not hold to set speed when going up hill or down. It works fine on level road, but drops sharply on grades.
Monday, July 27th, 2009 AT 10:21 AM

1 Reply

Tiny
DR LOOT
  • MECHANIC
  • 2,311 POSTS
I believe it may be a vacuum leek, check all your hoses make sure they are in good condition and your connections, due to the reason that when you go up hill you lose vacuum, and also going downhill you lose vacuum also, you also may have a bad diaphragm in your cruise control unit unless its computer-controlled?
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Friday, July 31st, 2009 AT 9:43 PM

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