what should be here? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

cochino12 · 01-31-2004, 04:21 PM

I think I figured out why the defrost in my Jimmy doesnt work. should there be something that closes the bottom of the floor vent when the switch is moved to defrost? I checked in my truck (non ac) and there is a cable that pulls the vent closed to direct the air up. any ideas

cochino12 · 01-31-2004, 04:22 PM

different side. thanks for any help

r0lf- · 01-31-2004, 05:03 PM

Did you check the vaccum line running to the switch in the engine bay. It should be running from a vaccum source to a little ball. Thats what was wrong with mine... Just wasnt hooked up.

cochino12 · 01-31-2004, 05:28 PM

Quote:

Originally posted by r0lf-
Did you check the vaccum line running to the switch in the engine bay. It should be running from a vaccum source to a little ball. Thats what was wrong with mine... Just wasnt hooked up.

I actually just put that ball in a couple days ago, I dont know about the switch though? where is the switch in the engine bay?

Grim Reaper · 02-01-2004, 02:42 AM

The floor difuser is missing. you can't see the flap from that angle. Reach up into that hole for the linkage that pot on the side moves and see if it's hooked to anything.

The control for the defrosters is on the back of the box. It's a pot like that once you have pictures. To access it pull your glove box door. Once the door is out of the way you will see a linkage. That is the blong doog control cable from the bottom slide on the dash control. Reach over that linkage and the top of the box and you will be able to feel that vacuum pot.

Here is a post going on with a guy at CK5 replacing a heater core. He has a nice picture where you can see the back of the box. The top of the box as it would be when mounted is at the bottom of the picture. The pot that is visable is the one on the back.

Prerunner1982 · 02-01-2004, 07:38 AM

Grim were you already getting ready for the super bowl (drinking) when you typed that? or were just in a hurry? lingage, sid, difrosters, blong doog contorl, slid, controld, op.....

you know i am just messin with ya.. i can type REALLY fast... i just spend more time correcting all the words than it did to type it all in the first place.

Grim Reaper · 02-01-2004, 11:08 AM

Quote:

Originally posted by Prerunner1982
Grim were you already getting ready for the super bowl (drinking) when you typed that? or were just in a hurry? lingage, sid, difrosters, blong doog contorl, slid, controld, op.....

you know i am just messin with ya.. i can type REALLY fast... i just spend more time correcting all the words than it did to type it all in the first place.

Hahahaha Ohhh man that was bad. That's typing when half asleep and distracted byt the TV.

Grim Reaper · 02-01-2004, 11:12 AM

Fixed it up a little. These drugs the doc has me on are not helping matters either.

cochino12 · 02-01-2004, 01:00 PM

Quote:

Originally posted by Grim Reaper
The floor difuser is missing. you can't see the flap from that angle. Reach up into that hole for the linkage that pot on the side moves and see if it's hooked to anything.

The control for the defrosters is on the back of the box. It's a pot like that once you have pictures. To access it pull your glove box door. Once the door is out of the way you will see a linkage. That is the blong doog control cable from the bottom slide on the dash control. Reach over that linkage and the top of the box and you will be able to feel that vacuum pot.

Here is a post going on with a guy at CK5 replacing a heater core. He has a nice picture where you can see the back of the box. The top of the box as it would be when mounted is at the bottom of the picture. The pot that is visable is the one on the back.

thanks for the help, i just have to fing the difuser now.

**N2TRUX** · 02-01-2004, 01:06 PM

Quote:

Originally posted by cochino12 ....i just have to fing the difuser now

What the h3ll did he say....

01-31-2004, 04:21 PM	#1
cochino12 It followed me home? Join Date: Mar 2003 Location: Yup Posts: 5,751	what should be here? I think I figured out why the defrost in my Jimmy doesnt work. should there be something that closes the bottom of the floor vent when the switch is moved to defrost? I checked in my truck (non ac) and there is a cable that pulls the vent closed to direct the air up. any ideas Attached Images __________________ Adam That's why they call it a shortcut Kyle, if it was easy it would just be the way. 86 c-10 SWB 85 CCSB 90 GMC K30 Crew SRW 1985 C30 Dually

01-31-2004, 04:22 PM	#2
cochino12 It followed me home? Join Date: Mar 2003 Location: Yup Posts: 5,751	different side. thanks for any help Attached Images __________________ Adam That's why they call it a shortcut Kyle, if it was easy it would just be the way. 86 c-10 SWB 85 CCSB 90 GMC K30 Crew SRW 1985 C30 Dually

01-31-2004, 05:03 PM	#3
r0lf- Hotwheels? Join Date: Dec 2002 Location: Pleasant Hill, CA Posts: 1,145	Did you check the vaccum line running to the switch in the engine bay. It should be running from a vaccum source to a little ball. Thats what was wrong with mine... Just wasnt hooked up. __________________ 1978 Money Pit - CUSTOM DELUXE!!!!

02-01-2004, 02:42 AM	#5
Grim Reaper Registered User Join Date: Jul 2001 Location: Atlanta GA Posts: 1,704	The floor difuser is missing. you can't see the flap from that angle. Reach up into that hole for the linkage that pot on the side moves and see if it's hooked to anything. The control for the defrosters is on the back of the box. It's a pot like that once you have pictures. To access it pull your glove box door. Once the door is out of the way you will see a linkage. That is the blong doog control cable from the bottom slide on the dash control. Reach over that linkage and the top of the box and you will be able to feel that vacuum pot. Here is a post going on with a guy at CK5 replacing a heater core. He has a nice picture where you can see the back of the box. The top of the box as it would be when mounted is at the bottom of the picture. The pot that is visable is the one on the back. __________________ Grim-Reaper 70 Pontiac LeMans Sport Convertible, worlds longest resto in progress Looking for 71-72 2wd Blazer or Jimmy Project Last edited by Grim Reaper; 02-01-2004 at 11:11 AM.

02-01-2004, 07:38 AM	#6
Prerunner1982 Registered User Join Date: Oct 2002 Location: Edmond, OK Posts: 5,904	Grim were you already getting ready for the super bowl (drinking) when you typed that? or were just in a hurry? lingage, sid, difrosters, blong doog contorl, slid, controld, op..... you know i am just messin with ya.. i can type REALLY fast... i just spend more time correcting all the words than it did to type it all in the first place. __________________ Jon 1982 Chevy Silverado 350/th350.... RETIRED 1993 Jeep XJ 2 door(Cherokee) 4wd 4.0ltr/AX-15 (5spd)/NP231 .... Oklahoma Roll Call

02-01-2004, 11:12 AM	#8
Grim Reaper Registered User Join Date: Jul 2001 Location: Atlanta GA Posts: 1,704	Fixed it up a little. These drugs the doc has me on are not helping matters either. __________________ Grim-Reaper 70 Pontiac LeMans Sport Convertible, worlds longest resto in progress Looking for 71-72 2wd Blazer or Jimmy Project

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