GM Engine & Exhaust Performance EFI | GEN I/GEN II/GEN III/GEN IV Engines |Small Block | Big Block |

My Nelson fan harness is eating relays

Thread Tools
 
Search this Thread
 
Old Jul 14, 2006 | 10:07 AM
  #21  
moregrip's Avatar
what a rush!
20 Year Member
Loved
Liked
Community Favorite
iTrader: (8)
 
Joined: Feb 2004
Posts: 17,629
Likes: 33
From: Wyoming
Default

Originally Posted by thunder550
What did you swap them to?
forget the brand name, I'll look today if you still need me too. I believe BC switched to Bosch relays as he experienced the same thing.
Reply
Old Jul 14, 2006 | 10:47 AM
  #22  
thunder550's Avatar
Thread Starter
High on diesel fumes
iTrader: (70)
 
Joined: Mar 2005
Posts: 12,658
Likes: 3
From: Phoenix, AZ
Default

Originally Posted by ltn
do u have a lower tstat?
Yes, I have a 160.
Reply
Old Jul 14, 2006 | 10:48 AM
  #23  
thunder550's Avatar
Thread Starter
High on diesel fumes
iTrader: (70)
 
Joined: Mar 2005
Posts: 12,658
Likes: 3
From: Phoenix, AZ
Default

Originally Posted by moregrip
forget the brand name, I'll look today if you still need me too. I believe BC switched to Bosch relays as he experienced the same thing.
Yes please, that would be great
Reply
Old Jul 16, 2006 | 09:03 PM
  #24  
moregrip's Avatar
what a rush!
20 Year Member
Loved
Liked
Community Favorite
iTrader: (8)
 
Joined: Feb 2004
Posts: 17,629
Likes: 33
From: Wyoming
Default

looks like I used Bosch too
Reply
Old Jul 16, 2006 | 10:47 PM
  #25  
thunder550's Avatar
Thread Starter
High on diesel fumes
iTrader: (70)
 
Joined: Mar 2005
Posts: 12,658
Likes: 3
From: Phoenix, AZ
Default

Thanks!
Reply
Old Jul 16, 2006 | 11:13 PM
  #26  
BlownChevy's Avatar
blownerator
25 Year Member
iTrader: (20)
 
Joined: Mar 1986
Posts: 18,749
Likes: 8
From: Chatsworth, CA
Default

Mine at an alt. today. I have noticed that the constant on and off cycle with the A/C has been causing a serious current draw on the charging system. Looks like this may need another look see to make this harness better.
Reply
Old Jul 17, 2006 | 01:00 AM
  #27  
thunder550's Avatar
Thread Starter
High on diesel fumes
iTrader: (70)
 
Joined: Mar 2005
Posts: 12,658
Likes: 3
From: Phoenix, AZ
Default

Originally Posted by BlownChevy
Mine at an alt. today. I have noticed that the constant on and off cycle with the A/C has been causing a serious current draw on the charging system. Looks like this may need another look see to make this harness better.

I was trying to find out if there was any kind of time-delay relay that could be installed to keep both fans from turning on at the same time. Maybe trun one fan on then the other a couple seconds later, or find something that gradually ramps up the fan speed.
Reply
Old Jul 17, 2006 | 01:03 AM
  #28  
moregrip's Avatar
what a rush!
20 Year Member
Loved
Liked
Community Favorite
iTrader: (8)
 
Joined: Feb 2004
Posts: 17,629
Likes: 33
From: Wyoming
Default

I was also thinking, since I have an 05, I wonder if the circuitry is there to just plug in the stock wiring/stuff, activate it in the PCM, and be good to go. thoughts?
Reply
Old Jul 17, 2006 | 01:25 AM
  #29  
thunder550's Avatar
Thread Starter
High on diesel fumes
iTrader: (70)
 
Joined: Mar 2005
Posts: 12,658
Likes: 3
From: Phoenix, AZ
Default

Originally Posted by moregrip
I was also thinking, since I have an 05, I wonder if the circuitry is there to just plug in the stock wiring/stuff, activate it in the PCM, and be good to go. thoughts?
I think it is, might be worth doing some research since I think the fans are supposed to be variable speed in OEM applications.
Reply
Old Jul 17, 2006 | 05:14 PM
  #30  
BlownChevy's Avatar
blownerator
25 Year Member
iTrader: (20)
 
Joined: Mar 1986
Posts: 18,749
Likes: 8
From: Chatsworth, CA
Default

installed the 145 amp today, seems to be a little better on the draw.....

we will see.


GM part# 10464476

I noticed that one ONE fan is on with the A/C turns on if the temp is below where it is set to come on....does that make sense? LOL
Reply



All times are GMT -5. The time now is 12:04 PM.