Topic: Heat/A/C fan speed
in Forum: C3 Cooling and Heating Systems
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Lifetime MemberModerator
Duncanville, TX - USA
Joined: 11/8/2003
Posts: 20214
Vette(s): #1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/
Am-Fm/map light National/Regional/Chapter NCRS "Top Flight"
#2-1985 Bright Red/Carmine Cp.L-98/auto
Member: NCRS, NCRS Texas, Corvette Legends of Texas
[QUOTE=Brown78] I installed a new resister and corrected the 3 bottom wires connection on the relay. Now I have low and mid no high speed. I asked around and was told that there is a fuse-able link somewhere between the fuse block and the relay. If this is true. I can't find it. The only fuse-able links I can find is connected to the starter. I thought there would be only 1 kink but, there was 2. Where do they go to. 
How can I test if the link is bad? [/QUOTE]
Sooooo....what yer sayin is...you HAD high speed until ya messed with the wires on da relay?
The high speed is controlled by that relay...might wanna check yer work again!
(just messin with ya
)
There is usually a fuse-link for the blower motor running in the harness, just to the passenger side of the distributor area. But...you had high before, so I can't see the fuse-link being a problem. Most of the time, when the high speed doesn't work, it's the relay.
How can I test if the link is bad? [/QUOTE]
Sooooo....what yer sayin is...you HAD high speed until ya messed with the wires on da relay?
The high speed is controlled by that relay...might wanna check yer work again!
(just messin with ya)
There is usually a fuse-link for the blower motor running in the harness, just to the passenger side of the distributor area. But...you had high before, so I can't see the fuse-link being a problem. Most of the time, when the high speed doesn't work, it's the relay.
Joel Adams
C3VR Lifetime Member #56 
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"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"
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The fuse was my problem, I put a circuit breaker fuse in (30amp)and it has been working since.
BUT, in order to get my blower to work I have to slide the heat wide open for a couple of seconds, pull to slide back to the correct position and the blower works fine. WHY?
Gene
all
i changed the rear springs to trw composites and upgraded the front springs with kyb g2 and presto the ride improved a lot
this of course is true as long as your on a decent road
if you get on one thats choppy at all you can still feel the hard ride
overall its great improvment!
thanks again for all the info!! it worked
now to find electric sports mirrors for the 80 s wonder if c4s can work??
Gs77vet
The heater control head also has a switch for blower control. It only allows the blower to run on low when the heater control head is shut off. But you switch is starting to fail, or has dirty contacts. Either way, it may continue to work that way for years, or may fail soon. You will need to replace/repair the heater control head.
in Forum: C3 Cooling and Heating Systems
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