only high fan - Page 3

crabtruck · 11-04-2009, 02:49 PM

While sometimes the head flash can be caused by
bouncing / jittering the contact while making battery connection,
in your case given the history, I would be looking for poor connection
at the head itself. Try snugging the connector if you have that reach.
If you actually take head out, look for any corrosion on contacts.
That can usually be cleaned with an old fashion pink pencil eraser,
just make sure you hold head at an angle that does not let anything fall into
the head. Basically keep contact side down and blow clean after "erasing"

Pink pencil eraser is excellent for cleaning info or "computer" type connections,
as long as they are the grease free kind. Will also remove skin oils you can't see
but that messes with signal. Gotta love high tech.

Around Decenber 1941, Texas passed a law banning ninjas from state.
That's ok because this AC does not go on the fail list, just unplugged.

Ninja_Lawn_Guy · 11-04-2009, 04:16 PM

How could you ban something you don't even know is there? That's like banning shadows from hallways.

crabtruck · 11-04-2009, 06:15 PM

Booo ! .... Using metaphor too close to described behavior.
IE: The rising sun was like a solar star coming into view over horizon.

It is good for raising post count, but maybe you should
reflash your head (just trying to stay on topic like hotrod said to)

(kidding)

gaftop1 · 11-04-2009, 07:26 PM

reset didn't stop the flashing. back to checking wires.

gmctrucks · 11-04-2009, 08:48 PM

Quote:

Originally Posted by gaftop1

howdy back from port aransas tx

phew had some major fear going there for a while ninja. lol

i must admit to major brain cramp.
apparently when i routed the harness it affected the mode and heater controls. they both use the same plug but when you reverse where they go things don't work as they should.
charged the system mode works fine now, getting 40f at the vents,fan works as it should. only problem now is cold and heater control is flashing all arrows and stays cold. resetting ecm maybe flashing will go away.
thanks all.

We have another Texan

gaf you need to put that down on your profile that your from TEXAS because were taking over this forum. LOL

PS-I had a aunt of mine that lived over there plus I heard that's there is good fishing over there. Your going to have to come to the truck get together we might be having in Brads hometown it's the oldest city in TEXAS.
Nacogdoches, Texas - Wikipedia, the free encyclopedia

gaftop1 · 11-06-2009, 08:21 AM

back again. fan and a/c are working right. first starting the a/c. temp control is normal, arrow will move from cold to hot properly. after about 3 minutes temp indicator starts flashing all arrows. but a/c is still cold. punch max button temp immediately goes to hot.
few minutes later with max off flashing stops but no arrows at all for temp control. a/c is cold and working great.
i'm leaning toward toward the relay but which one controls the temp??????

crabtruck · 11-08-2009, 04:29 AM

Relays are for fan speed and AC compressor circuits, not mode or temp.
Mode (where air comes out) and temp use "motors" for flap type valves.
Head uses two wires to make flap move one way or the other,
and the remaining three wires to see if it did it. (True for either motor.)
The symptoms you are having makes me think you need to give all connections
the once over from scratch. You may have done more tugging than you realize.
Flashing is usually an indication of "no response" from motor.

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11-04-2009, 02:49 PM	#21
crabtruck Senior Member Join Date: Jul 2007 Location: on your 9 Posts: 3,366	While sometimes the head flash can be caused by bouncing / jittering the contact while making battery connection, in your case given the history, I would be looking for poor connection at the head itself. Try snugging the connector if you have that reach. If you actually take head out, look for any corrosion on contacts. That can usually be cleaned with an old fashion pink pencil eraser, just make sure you hold head at an angle that does not let anything fall into the head. Basically keep contact side down and blow clean after "erasing" Pink pencil eraser is excellent for cleaning info or "computer" type connections, as long as they are the grease free kind. Will also remove skin oils you can't see but that messes with signal. Gotta love high tech. Around Decenber 1941, Texas passed a law banning ninjas from state. That's ok because this AC does not go on the fail list, just unplugged.

11-04-2009, 04:16 PM	#22
Ninja_Lawn_Guy Senior Member Join Date: May 2008 Location: Michigan Posts: 413	How could you ban something you don't even know is there? That's like banning shadows from hallways.

11-04-2009, 06:15 PM	#23
crabtruck Senior Member Join Date: Jul 2007 Location: on your 9 Posts: 3,366	Booo ! .... Using metaphor too close to described behavior. IE: The rising sun was like a solar star coming into view over horizon. It is good for raising post count, but maybe you should reflash your head (just trying to stay on topic like hotrod said to) (kidding)

11-04-2009, 07:26 PM	#24
gaftop1 Full Member Join Date: Oct 2009 Posts: 14	reset didn't stop the flashing. back to checking wires.

11-06-2009, 08:21 AM	#26
gaftop1 Full Member Join Date: Oct 2009 Posts: 14	back again. fan and a/c are working right. first starting the a/c. temp control is normal, arrow will move from cold to hot properly. after about 3 minutes temp indicator starts flashing all arrows. but a/c is still cold. punch max button temp immediately goes to hot. few minutes later with max off flashing stops but no arrows at all for temp control. a/c is cold and working great. i'm leaning toward toward the relay but which one controls the temp??????

11-08-2009, 04:29 AM	#27
crabtruck Senior Member Join Date: Jul 2007 Location: on your 9 Posts: 3,366	Relays are for fan speed and AC compressor circuits, not mode or temp. Mode (where air comes out) and temp use "motors" for flap type valves. Head uses two wires to make flap move one way or the other, and the remaining three wires to see if it did it. (True for either motor.) The symptoms you are having makes me think you need to give all connections the once over from scratch. You may have done more tugging than you realize. Flashing is usually an indication of "no response" from motor.