[Colorado Christian]

I found out the hard way today that the newly designed air filter for the 2006/2007 Dmax has an issue in bad weather. In driving/blowing snow the air intake in the fender can fill up and reduce the air flow to the Mass Air Flow sensor and the truck will reduce power dramatically. Apparently it doesn't take too much to cuase the problem because it really wasn't that bad out. I immediately took it to the dealer (or stealer if you will) and they indicated that GM Engineering is aware of the problem, is investigating but does not have a fix yet. I told them this problem is unacceptable. I will be calling them every week to see if they have a fix. These trucks cost a lot of money to not be able to drive in the snow (it tends to do that here in Colorado from time to time). Anyone else have this problem? Any proposed fixes?

The Document ID# is 1885408 & the Bulletin # is 02-00-89-002F

 

[Unit453]

Thats good to know. I'm glad I just read this.

 

[coldLBZ]

Yeah, me too. I drove in blowing snow this past week, I thought it just felt strange becasue of the wind itself, not the snow in the air intake. Thanks for the heads up.

 

[MadMax72]

not yet happened but will be barking up a storm if this does were exactly does the snow build up in front out side the fender or further in the fender

Sorry if tis does not make sense I just had lasik surg and can not see to well

 

[BlackHawkTDI]

would throwin on a winter front help? its been snowin like a bast*rd here and i havent had a problem in eather truck!

 

[MadMax72]

i would thank not I think the snow gets in by the lights not sure though. I installed a cold air pipe down in the bumper last sumer and have not had any trouble yet

 

[NCMIC]

madmax72, do you have a picture of the cold air pipe behind the front bunmper?

 

[JKitterman]

There isn't much you can do about the powder snow. It happens to Dodge too. You may have luck with cutting a hole on the airbox that feeds from the warmer engine compartment and just plug it for the rest of the year.

 

[haulin-rv]

Been in A BUNCH of snow and traveled many miles, never an issue (stock). Now I have an Afe stage 1, so I guess I will never have to worry.

 

[Knucklehead13]

You might try leaving the access cover off the air cleaner housing, I took mine off the 2nd day I had the truck with no problems,11,000 miles, just a thought.

 

[blizzardplowman]

Plowed a bunch of snow and just towed in a snow storm this week. NO issue here.

 

[MadMax72]

no I did not take pictures, I should have though
It consits of a 2000 pontiac gtp tail pipe sand blasted and polished, some metal flexiable exhaust pipe that is not rusting, one home made clamp a hole saw and some sheet metal. I can give better explanatino if needed it looks 100% stock and is completely hidden except a part of the tip.

 

[MadMax72]

There is one picture in my gargae were you can see the tip

 

[Colorado Christian]

To answer Madmax72: The dealer Tech indicated that the snow was coming inside the fenderwell and on into the intake housing causing a reduced flow through the air filter. Started to try to blame it on the lift - informed him they installed the lift - stopped that conversation pretty quickly.
Though about installing a high flow filter replacement. As far as an intake kit: My dealer is pretty flexible on after market upgrades however they have told me they are not terribly fond of intake kits and consistently make people take them off to trouble shoot air flow related codes.

 

[SleeperTRK]

I drove to denver and back in a snowstorm about 2 months ago (500miles). No problems at all. But I remove the little nipple on the bottom of the airbox that drains water. Maybe that helped??

 

[Dr_goodwrench66]

Have seen a few trucks with this problem now. GM says no fix avail at this time. They shouldn't take too long to get it resolved...SIKE!

 

[mnhunterman]

I have not had any problems even in my nonstop 1,300mile trip from central MN to saratoga WY, and back. It was snowing and raining the whole way there, and back...never a problem with power.

 

[robs0574]

i had the same poblem w/my 06. They replaced the intake housing and havent had any more problems.

 

[Colorado Christian]

robs0574 did the dealer give you any indication what was wrong with your intake housing?

Just a clarificaation: I don't think I was clear on the loss of power description - The loss comes from the mass air flow sensor monitoring a reduced air flow and shutting down the motor (to protect itself). The tranny also actied like it went into limp mode but after the sun came out went back to operating normally. The dealer reset the MAF code for me.

 

[Datdude]

I just drove 50+ miles in some pretty wicked lake effect snow last weekend and had no issues at all. I do have the front bumper cover on the truck if that makes a difference?