A/C SWITCH TO DEFROST AT 60-70 MPH, CRUISE CONTROL NOT WORKING

  • Tiny
  • tmaj9447
  • 1997 Dodge Ram
  • 331 miles

I have replaced all vac check valves, vac tested all a/c lines in cab including vac canister. I hear what sounds like a large vac leak when pressing the accelerator but can not track it down. New engine block approx 6K on it, sprayed around engine on change purs like a cat. I am at my whits end please help.

Do you
have the same problem?
Yes
No
Monday, December 19th, 2011 AT 9:56 PM

3 Replies

  • Tiny
  • fixitmr
  • Member

Splice a vac gauge into line and watch what happens.

Was this
answer
helpful?
Yes
No
Monday, December 19th, 2011 AT 10:47 PM
  • Tiny
  • tmaj9447
  • Member

Where do you recommend a good location to splice in a vac gauge, before check valve at manifold, after check valve, or other location. Also what am I looking for?

Was this
answer
helpful?
Yes
No
Monday, December 19th, 2011 AT 11:52 PM
  • Tiny
  • fixitmr
  • Member

Splice into hvac line in cab pre controls.

Was this
answer
helpful?
Yes
No
Tuesday, December 20th, 2011 AT 1:28 AM

Please login or register to post a reply.

Similar Questions