2001 DODGE RAM REPLACED EVAPORATOR, NOW ONLY DEFROST.

  • Tiny
  • davidj7479
  • 2001 Dodge Ram
  • 5.9L
  • V8
  • 4WD
  • automatic
  • 205,000 miles

I had to replace my evaporator (and heater core) this weekend. Air nice and cold, but only defrost. It worked fine before I pulled the heater box.

I have vacuum going into the firewall (right past the check valve).

Without starting I disconnected the vacuum line after the check valve, heard vac for a second and stopped, bypased check valve, no difference.

The I disconnected the vacuum block connector under the dash, started the truck, had strong vac for 2 seconds and died down to nothing.

Pinched line maybe?

Assuming I pinched the hose somewhere, where could I run a new hose so I don't have to pull out the hole box, again? What size hose?

Thanks for your input.

Tuesday, July 1st, 2014 AT 2:07 PM

1 Answer

  • Tiny
  • Jacobandnickolas
  • Expert
  • 68,410 posts

That's exactly what it sounds like, a pinched hose. You can run one anywhere through the firewall. Exact hose size, good question. Chrysler uses some rubber hose, some plastic. Take a section with you to the store to match it.

Was this
answer
helpful?
Yes
No
Tuesday, July 1st, 2014 AT 6:12 PM

Please login or register to post a reply.

Similar Questions