I have a 2005 with the LLY engine. Seems I remember reading that changing out the stock air intake box improves/lowers engine operating temperature somehow, especially towing. Am I remembering correctly and what does one replace it with?
I have a 2005 with the LLY engine. Seems I remember reading that changing out the stock air intake box improves/lowers engine operating temperature somehow, especially towing. Am I remembering correctly and what does one replace it with?
There is marked improvement upgrading to the 2006+ filtration/ducting system. Some modification is required.
I had mine replaced on my late 05 GMC and it made a nice difference, not only in cooling but, in better fuel economy. GM took care of the cost under a service bulletin. Search this site .. I know there is plenty of info available. Take your Max to your dealer they can research it for you... IF you have a dealer looking out for the customer.
Here is the bulletin.............................
#06-06-04-036D: Engine Overheats or Runs Hot in High Ambient Temperature When Towing or Hauling on Long Inclines (Install 2006 Air Cleaner Assembly) - (Jun 4, 2007)
There is a software upgrade that goes along with it.
1998 Chevy k-2500 454 147,000 miles and climbing!
1993 Pontiac G/A Big Block 3.3 Liter 140,000 miles and still going too!
#06-06-04-036D: Engine Overheats or Runs Hot in High Ambient Temperature When Towing or Hauling on Long Inclines (Install 2006 Air Cleaner Assembly) - (Jun 4, 2007)
Can't say mine runs hot. Did see it go above 210 once for a short period pulling a long incline. Do notice fan kicks in a lot when towing in hot weather and tranny temps get up to 195 pretty easily. Does that meet the bulletin criteria to get GM to replace airbox? By the way, I've got about 85K miles. I assume this might be covered un der the 100K warranty?
The document doesn't really say if it is covered under the 5 year/ 100k mile warranty. I would assume so. There are several checks that have to be made before performing the repair. Send me your personal e-mail in a private message and I will send the document to you.
1998 Chevy k-2500 454 147,000 miles and climbing!
1993 Pontiac G/A Big Block 3.3 Liter 140,000 miles and still going too!