View Single Post
Old 03-20-2018, 07:34 PM   #15
jrpontiac
Registered User
 
jrpontiac's Avatar
 
Join Date: Nov 2017
Location: spokane, wa
Posts: 122
Re: PCM is not grounding fans properly

At this point I'm not sure how the fans are suppose to be working. Is there a low speed fan that becomes a high speed fan once the engine hits a certain temp? Is the low speed fan always a low speed fan? And a high speed fan that only runs high? Im just confused on what either fan is suppose to be doing. Going into this I thought the fans ran either 100% or not at all, and were triggered at diff temp. It sounds like they are suppose to be doing something different.
__________________
1977 Chevy C10 SB, Turbo 5.3ls, TH400
jrpontiac is offline   Reply With Quote