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Car Forum / Chevrolet / Chevrolet Trucks / March 2008Chevy S-10 truck blower problem
I have a new issue with my truck blower, it only blows out the defrost vent now and will no longer change when I turn the switch. It still blows heat and AC but only out the defrost vent. I have heard this is probably a vaccum problem but don't know where to look, or could it be something else. > I have a new issue with my truck blower, it only blows out the defrost > vent now and will no longer change when I turn the switch. It still > blows heat and AC but only out the defrost vent. I have heard this is > probably a vaccum problem but don't know where to look, or could it be > something else. Look at the vacuum lines that go into the firewall. Follow it back to the engine. Make sure they are OK. Also look at the brake booster line and the lines that run to the vacuum reservoir under the hood.  SignatureSteve W. Near Cooperstown, New York Life is not like a box of chocolates it's more like a jar of jalapenos- what you do today could burn your a.s tomorrow! > > I have a new issue with my truck blower, it only blows out the defrost > > vent now and will no longer change when I turn the switch. It still [quoted text clipped - 13 lines] > it's more like a jar of jalapenos- > what you do today could burn your a.s tomorrow! Just took a look under the hold, close to the vacuum resevoir is a "T" connector and it appears the hose coming off the "T" broke off. I don't see any hose laying loose anyway so I guess I'll have to find a diagram to see where it went >>> I have a new issue with my truck blower, it only blows out the defrost >>> vent now and will no longer change when I turn the switch. It still [quoted text clipped - 17 lines] > don't see any hose laying loose anyway so I guess I'll have to find a > diagram to see where it went Check for the sticker under the hood. What year is this truck? SignatureSteve W. Near Cooperstown, New York > >>> I have a new issue with my truck blower, it only blows out the defrost > >>> vent now and will no longer change when I turn the switch. It still [quoted text clipped - 26 lines] > > - Show quoted text - Truck is a 1997, Got the flashlight out and found the broken hose from the small T-connector tucked back behind some wires, took a small piece of hose from the house relaced the broken one and connected to the T-connector, all works well. >>>>> I have a new issue with my truck blower, it only blows out the defrost >>>>> vent now and will no longer change when I turn the switch. It still [quoted text clipped - 27 lines] > piece of hose from the house relaced the broken one and connected to > the T-connector, all works well. Yep, That will do it. SignatureSteve W. Near Cooperstown, New York Most likely a vacuum motor problem way deep under the dash....mine required dealer to pull dash out just to get at it >I have a new issue with my truck blower, it only blows out the defrost > vent now and will no longer change when I turn the switch. It still > blows heat and AC but only out the defrost vent. I have heard this is > probably a vaccum problem but don't know where to look, or could it be > something else. >Most likely a vacuum motor problem way deep under the dash....mine required >dealer to pull dash out just to get at it That's when it's time to look for something else to drive! A vac leak in my air line to the 4wd valve caused the same thing for me. I think any vac leak will cause the vac door motors to inoperate especially under load. This may not be the case for you but it certainly solved my problem with both my 4WD and A/C and/or blower 'issues'. Thanks, Andrew. On 29/02/08 10:44 AM, in article VKVxj.582$pp6.211@bignews3.bellsouth.net, > Most likely a vacuum motor problem way deep under the dash....mine required > dealer to pull dash out just to get at it [quoted text clipped - 3 lines] >> probably a vaccum problem but don't know where to look, or could it be >> something else. |
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