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#1
12-27-2009, 10:30 PM
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94 GMC Jimmy Heater issue
ok, right now I have another post of my Jimmy running funny and I just noticed this and its really weird, when I got to start it and get it warm I turn on the heater but no air blows out and after it runs for about 1-2 minutes it starts blwing good and has no problems until it sits over night again, do you think it could be a vacum problem- not gettin enough vacum to open the vents or something- does this every morning and the exact same way
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#4
12-28-2009, 05:54 PM
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Re: 94 GMC Jimmy Heater issue
On all speeds?
If bower motor is quiting check power to it and grounds. Make sure fuse is good and power both sides when it quits. What engine and if 4.3 v6 with or with out VCM?
__________________
Remember proper testing gives us the answer to many problems. MT
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#5
12-28-2009, 08:13 PM
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Re: 94 GMC Jimmy Heater issue
its the 4.3 vortec engine code W 94 jimmy 4X4, if it does has somethingto do with the vacum could that also be my hestiatio problem in my other thread?
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#6
12-28-2009, 08:17 PM
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Re: 94 GMC Jimmy Heater issue
Automatic Climate Control or manual?
__________________
You have to know how it works, to figure out why it doesn't.
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#9
01-02-2010, 09:17 AM
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Re: 94 GMC Jimmy Heater issue
If blower motor quits yes it could.
Check power and ground to blower motor and go from there.
__________________
Remember proper testing gives us the answer to many problems. MT
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