lukn4trbl355

iTrader: (2)

just changed mine also..16 bucks later better heat but still not as good as it once was...i just dont get it, blower motor sounds like its goin all out just not that much push is making it through the vents and a low dime, thats just about how bad mine just looked...prob restricted ya a good bit

livefast1

iTrader: (1)

Also these trucks have alot of problems with the mode actuators. Are you sure the air isnt also blowing out of uncommanded vents? The actuators have little plastic gears in them that break. Also there is a tsb for reflashing the hvac module on some trucks due to door travel issues. The way I test heater core efficiency is turn the blower to high and and the heater core inlet hose should be just about to hit to keep a hand on and the outlet hose quite a bit cooler. Once you turn the fan off the outlet hose should quickly approach the temp of the inlet hose now that you have no heat transfer, if not, its plugged up.

AKlowriderZ71

iTrader: (22)

HVAC module reflash is on '03 and up. Won't apply to the OP's truck. Just mentioning it to save the OP some trouble.

livefast1

iTrader: (1)

Thanx, yea couldn't remember what years had the overtravel issues.

lukn4trbl355

iTrader: (2)

mode actuators? if ya dont mind me askin what the hell is that lol? im a motor/drivetrain guy...electrical, lets just say im challenged with that lol. and ill definitley give that a try with grabbin the hoses...ive got good heat just no force behind it, either way this is the last year the truck will be daily driven, so im not extremely worried about it even though for the time being it does kinda suck lol

livefast1

iTrader: (1)

The doors that direct the airflow and control the air temp are controled by little black boxes that consist of a motor, gears, and position sensor circuitry.

AKlowriderZ71

iTrader: (22)

Actuator for the temp door looks like this. There's also a blend door.


But yours sounds like a plugged heater core to me, at this point.

lukn4trbl355

iTrader: (2)

i think i might buy one, and if it doesnt work any better just return it lol...thanks guys i appreciate it!

lukn4trbl355

iTrader: (2)

also my trucks air flap occasionally clunks/drops if that helps give it a better pinpoint...its really rare though

livefast1

iTrader: (1)

Yea that sounds like broken teeth in the actuator. It should never clunk.