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A/C or heater stop blowing.
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Topic: A/C or heater stop blowing. (Read 6227 times)
Redcell
Newbie
Posts: 19
A/C or heater stop blowing.
«
on:
May 31, 2010, 09:50:52 pm »
What would cause this? What should I start checking first. The rear still blows great. 87 chev burb
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beastie_3
Senior Member
Posts: 3170
Josh
Re: A/C or heater stop blowing.
«
Reply #1 on:
May 31, 2010, 11:13:23 pm »
Fuse, relay, grounds, switch.
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79 K10
Semper Fi
73-87 Chevy Trucks Facebook Page
Redcell
Newbie
Posts: 19
Re: A/C or heater stop blowing.
«
Reply #2 on:
June 01, 2010, 11:14:41 am »
Where would I find the relays?
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beastie_3
Senior Member
Posts: 3170
Josh
Re: A/C or heater stop blowing.
«
Reply #3 on:
June 01, 2010, 11:46:25 am »
Its on the heater box in the engine compartment. Get a mechanic book for your truck. There is a wiring diagram in the Technical section. Trace all the wires and check connections and such.
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79 K10
Semper Fi
73-87 Chevy Trucks Facebook Page
VileZambonie
Global Moderator
Senior Member
Posts: 19174
Re: A/C or heater stop blowing.
«
Reply #4 on:
June 01, 2010, 12:09:49 pm »
Always start at the source of the malfunction. In this case go directly to the blower motor and verify you have a good connection. Turn the blower on hi and check for B+ at the connector. Report back
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, ___
/ _ _ _\_
⌠ŻŻŻŻŻ' [☼===☼]
`()_);-;()_)--o--)_)
74 GMC
,
75 K5
,
84 GMC
,
85 K20
,
86 k20
,
79 K10
Redcell
Newbie
Posts: 19
Re: A/C or heater stop blowing.
«
Reply #5 on:
June 01, 2010, 03:17:59 pm »
any mechanic books you recomend? I have a haynes.
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VileZambonie
Global Moderator
Senior Member
Posts: 19174
Re: A/C or heater stop blowing.
«
Reply #6 on:
June 01, 2010, 03:59:01 pm »
Factory service manual
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, ___
/ _ _ _\_
⌠ŻŻŻŻŻ' [☼===☼]
`()_);-;()_)--o--)_)
74 GMC
,
75 K5
,
84 GMC
,
85 K20
,
86 k20
,
79 K10
Redcell
Newbie
Posts: 19
Re: A/C or heater stop blowing.
«
Reply #7 on:
June 02, 2010, 07:48:12 am »
It was the blower motor. replaced it and it blows really great now. Thanks for the help guys.
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VileZambonie
Global Moderator
Senior Member
Posts: 19174
Re: A/C or heater stop blowing.
«
Reply #8 on:
June 02, 2010, 04:18:01 pm »
http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=390198627564&crlp=1_263602_263622&ff4=263602_263622&viewitem=&guid=fa85296a1280a0e2050085f0fe3fe439&rvr_id=&ua=WXI7&itemid=390198627564
and
http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=200472917582&crlp=1_263602_263622&ff4=263602_263622&viewitem=&guid=fa85296a1280a0e2050085f0fe3fe439&rvr_id=&ua=WXI7&itemid=200472917582
or
http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=390195913158&crlp=1_263602_263622&ff4=263602_263622&viewitem=&guid=fa85296a1280a0e2050085f0fe3fe439&rvr_id=&ua=WXI7&itemid=390195913158
Logged
, ___
/ _ _ _\_
⌠ŻŻŻŻŻ' [☼===☼]
`()_);-;()_)--o--)_)
74 GMC
,
75 K5
,
84 GMC
,
85 K20
,
86 k20
,
79 K10
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A/C or heater stop blowing.