97 International vent air update

764614

{"text":"Well I took the tube from the unit through the floor to the dash out again and checked for blockage, but nothing. There's only one filter inside the unit and then the option for outside air. It does seem to blow better, but doesn't seem like it's blowing like it should. But then again I'm used to newer climate systems. Maybe it is ok now. Guess I'll have to find someone else with a truck like mine and see how there's does. Thanks for the help from the ones who have it.","videos":"[]","link":"{}","pics":"[]","canComment":true,"externalShare":false}

1012464

{"replyToPid":0,"replyTo":"","text":"did you check resistance of the blower motor at high speed?  blower motor resistor could be bad. very common on those years.\nunplug resistor and use a paper clip to run power on the high speed wire only."}

1012464

{"replyToPid":401136,"replyTo":"

764614 发表于 2020-10-05 14:45:11 Blows great with lid off and with the tube from the unit to under the dash off.

","text":"then you have a blend door stuck closed. or huge rats nest in ducting.\nfollow the cable to hvac box behind glove box. probably cable broken or rod for the door stripped.  that truck should be all cable mechanical operated"}

1012464

{"replyToPid":0,"replyTo":"","text":"."}

764614

{"replyTo":"","text":"Blows great with lid off and with the tube from the unit to under the dash off.","replyToPid":0}

764614

{"replyTo":"

1012464 发表于 2020-10-05 15:07:05 then you have a blend door stuck closed. or huge rats nest in ducting.\nfollow the cable to hvac box behind glove box. probably cable broken or rod for the door stripped.  that truck should be all cable mechanical operated

","text":"Ran cable down through yesterday and it's all open. All doors work properly too.","replyToPid":401138}

764614

{"replyTo":"

147103 发表于 2020-10-05 16:49:49 check your evaporator core and heater core. sounds like they could be plugged with dirt and debris.  my  old truck had same issue. I would pull cover and clean them.

","text":"Evaporator is out waiting on new one. Going to change heater core soon. Would the heater core being clogged be the issue not letting enough air? Side flap that closes beside the heater core is open.","replyToPid":401146}

1012464

{"replyTo":"

764614 发表于 2020-10-05 16:56:19 Evaporator is out waiting on new one. Going to change heater core soon. Would the heater core being clogged be the issue not letting enough air? Side flap that closes beside the heater core is open.

","text":"only when setting is on heat would a plugged heater core be an issue. if put on a/c it closes the door and air flow through heater core and then the air flow will be just through evaporator.","replyToPid":401149}