[PENER]

Originally Posted by roadking3

ANyone find the part number for the tube that connects the thermistor to the front of the heater box for this swap. I have done everything but drill for this tube and connect it since I cant find a part number for this? It seems to work fine without it? Anyone care to comment on what its for and if I actually need it.

Thanks tons

it works in the following way:

the air from the evap case blows out through the fitting. due to it's design (venturi tube) it causes the air to be drawn (sucked) from the plastic tube connected to it (that goes to the temp sensor).

the effect: temp sensor can constantly sample the cabin temperature. the faster the fan, the quicker the cabin temp changes, the quicker the feedback on those changes from the sensor.

think of it as a difference between mechanical air circulation and gravitational air circulation (which in fact is even worse than that in your case)

you may think the system is working fine, it is not. most of the time you will be OK in the manual mode. there are rarely some occasions when the system may get confused due to it's inteligent design.

the Auto mode, however, WILL NOT function properly without the proper air flow through the temp sensor.