Duramax Diesels Forum Truck of the Week
  #1  
Old 09-11-2019, 06:19 PM
celo1216 celo1216 is offline
FNG
 
Join Date: Sep 2019
Posts: 1
Default AC on and off

I have an 08 Duramax. This summer the ac started to kick on and off at idle. Mechanic says it is the Intercooler and that it’s not gettting good airflow. My pressures are too high. Some things that have been replace in the last few months is the injectors, new turbo, radiator, condenser. Everything I’ve read about the Intercooler does not mention how it effects the ac. Any suggestions. Or feedback?
Reply With Quote
  #2  
Old 09-11-2019, 06:51 PM
gmduramax's Avatar
gmduramax gmduramax is offline
Shits broke
 
Join Date: Jun 2008
Location: Nor cal
Posts: 3,415

Default

If it is dirty it will restrict air flow over the stack. Pull it out and clean it.
__________________
2008 GMC duramax crew cab short bed 2500.
10.98@124mph

Thanks to Mike L, SoCal Diesel, and Abel Chevorlet.

Tailgate Crew Member #1
Reply With Quote
  #3  
Old 09-11-2019, 08:40 PM
hondarider552's Avatar
hondarider552 hondarider552 is offline
Getting faster

 
Join Date: May 2008
Location: Arizona
Posts: 10,594

Default

Considering the AC condenser is in front of the intercooler... Not sure I'd believe your mechanic haha...
__________________

"OldManTan"
04 SC/SB 1500 Dart 427ci, AFR 6 bolt heads, twin 80mm turbos, TH400 8.91@155 so far..
06 Cummins cc/sb EFI by Hardway.
15 Cruze diesel deleted by Fleece


Tailgate Member #1 I prefer the backdoor
Reply With Quote
  #4  
Old 09-11-2019, 10:41 PM
JoshH's Avatar
JoshH JoshH is offline
Daggum farm truck
 
Join Date: Feb 2007
Location: Texas!!!
Posts: 13,224

Default

I don’t see many plugged up intercoolers restricting air flow through the cooling stack. Usually the stuff builds up on the radiator. I would check to make sure the new radiator doesn’t have stuff piled up in front of it. If it looks clean, I would suspect a faulty fan clutch.
__________________
06 Silverado 4x4 CC/SB

06 Express 2500 Duramax Van "The Dumpster"


Reply With Quote
  #5  
Old 09-12-2019, 03:28 PM
Ron Nielson Ron Nielson is offline
Hotrodder
 
Join Date: Oct 2009
Location: Berryton, KS
Posts: 150
Default

In order, front to back is:
Trans Cooler
A/C Condenser
Intercooler
Radiator

I don't think the Intercooler could have any likely effect on the performance of the A/C Condenser. If the Intercooler was really plugged, you would have other much more noticeable issues, i.e. high coolant temps, high oil temps, etc.
__________________
Ron Nielson

2008 Chevy Silverado LT, SRW, Crew Cab, LB, LMM/Allison, Rear lowered 2": otherwise, fully stock at this point. Edge Insight CTS
Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -7. The time now is 04:59 PM.


Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
vB.Sponsors