|
11-21-2005, 01:43 PM
|
#1 |
|
Registered User
Join Date: Aug 2004
Location: san marcos,tx
Posts: 266
|
heater problems
my heater has stopped blowing hot air. it still blows, so the blower motor is working. any ideas on what to check? this is on a 72 gmc with a 402 also this is an a/c truck.
__________________
72 GMC sierra 3/4 ton 402 bb  68 GMC 3/4 ton  2010 camaro rs: daily driver |
|
|
|
11-21-2005, 02:26 PM
|
#2 |
|
Thats the Hillbilly way
Join Date: Jul 2001
Location: Torrance,Ca
Posts: 5,980
|
Re: heater problems
First thing I would check is to see if I lost vacuum control to the Heater control valve .
__________________
BILL Torrance Calif 90504 Member DUF Club Member Old Farts Club 72 3/4ton Custom Camper BB402/400 trans Dynomax Cerama-coat headers , Hei distributor ,Edelbrock 1411 air,ps,pb,leafsprings ,98 chevy 60/40 seat,S10 shoulder belts tilt,3.54 Dana 60 rear. 16" Eagle wheels with LT265/75 16 tires,Gaylord Lid,H4 headlights with 100W relay conversion. " If I knew I was going to live this long I would have taken better care of myself " Marriage changes passion...suddenly you're in bed with a relative. A GUY'S PRAYER.... Lord, I pray for a nympho with huge boobs who owns a liquor store and likes to fish and hunt and has a Harley .Amen , Last edited by Bill72BB; 11-21-2005 at 06:26 PM. |
|
|
|
|
11-21-2005, 06:23 PM
|
#3 |
|
No,I DON'T have Tourett's
Join Date: Mar 2005
Location: Reno, NV
Posts: 556
|
Re: heater problems
I think I am saying the same thing bill72bb is saying. If you have ac check the vacuum controlled valve that cuts off hot water to the heater core. It should be the little gizmo on the passenger interior fender with the heater hoses coming and going. Mine was plugged solid.
__________________
'72 K5 CST 350/350 Daily Driver '69 GMC3500 Camper Special CST Flatbed 396/400 Upgraded to show truck '69 GMC 2500 L6292, 3spd beater |
|
|
|
 |
| Bookmarks |
|
|
Linear Mode
