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07-19-2018, 07:47 PM
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#26 |
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Registered User
Join Date: Jan 2013
Location: Imperial, MO
Posts: 1,003
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Re: PCM is not grounding fans properly
So then you're only going to run one fan speed?
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07-19-2018, 07:48 PM
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#27 |
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Registered User
Join Date: Nov 2017
Location: spokane, wa
Posts: 122
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Re: PCM is not grounding fans properly
Yes. Instead of one kicking on at 195 and the other kicking on at 205 they will both kick on at 205. I suspect it will be fine. Is a manual tranny with no A/C.
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1977 Chevy C10 SB, Turbo 5.3ls, TH400 |
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10-24-2018, 11:15 AM
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#28 |
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Registered User
Join Date: Sep 2016
Location: Pratt Kansas
Posts: 15
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Re: PCM is not grounding fans properly
Same problem here. One fan works great 2nd fan pulses and relay clicks. 2000 5.3 4L60E swapped into a 72 C10. Don't have ac hooked up but that is why I bought a 2 fan set up. I will update post if I figure it out.
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67 c20 68 c10 72 c10 69 GMC 72 short step |
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10-24-2018, 11:29 AM
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#29 |
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Registered User
Join Date: Nov 2017
Location: spokane, wa
Posts: 122
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Re: PCM is not grounding fans properly
deleted response
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1977 Chevy C10 SB, Turbo 5.3ls, TH400 Last edited by jrpontiac; 10-24-2018 at 02:20 PM. |
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10-24-2018, 02:17 PM
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#30 |
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Registered User
Join Date: Jan 2013
Location: Imperial, MO
Posts: 1,003
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Re: PCM is not grounding fans properly
See posts #21 and #23 in this thread on how to correct the issue in the tune file.
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