Attention: TDR Forum Junkies 
Below is a Bulletin that Chrysler put out about the Hood Silencer Pad/insulation turning White. I have a 2015 Ram 3500
STAR Case Number: S1623000012
This document does not authorize warranty repairs. This communication documents a record of past experiences. STAR Center Online does not provide any conclusions about what is wrong with the vehicle. Rather, it captures all previous cases known that appear to be similar or related to the vehicle symptom / condition. You are the expert, and you are responsible for deciding on the appropriate course of action. Contact STAR Center, or your Technical Assistance Center Via ECCI or eCONTACT ticket if no solution is found FCA US LLC Version 4.1 01/13/2015
Case Number: S1623000012
Release Date: 02/23/1016
Symptom/Vehicle Issue: A White Build Up Exist On Under Hood Silencer Pad
Discussion: The customer may notice a white crystalized build up on the hood silencer pad. This build up is actually MAP: Mono Ammonium Hydrogen Phosphate, a fire suppressant added to the hood silencer pad. MAP is easily dissolved in water. When the hood is saturated gravity may pull some of the MAP down onto the bottom surface of the silencer pad where it crystalizes. STAR Case
This document does not authorize warranty repairs. This communication documents a record of past experiences. STAR Center Online does not provide any conclusions about what is wrong with the vehicle. Rather, it captures all previous cases known that appear to be similar or related to the vehicle symptom / condition. You are the expert, and you are responsible for deciding on the appropriate course of action. Contact STAR Center, or your Technical Assistance Center Via ECCI or eCONTACT ticket if no solution is found FCA US LLC Version 4.1 01/13/2015
The excessive chemical treatment seeping out of the hood pad does not affect its performance in any way.
To clean the silencer pad, simply use soap and water and wipe away with a towel.
Verification: After cleaning verify the white substance on the silencer pad no longer exist. If it does, environmental conditions should be considered such as road salt. Fluid leaks within the engine compartment should also be considered.
STAR Case Number: S1623000012
This document does not authorize warranty repairs. This communication documents a record of past experiences. STAR Center Online does not provide any conclusions about what is wrong with the vehicle. Rather, it captures all previous cases known that appear to be similar or related to the vehicle symptom / condition. You are the expert, and you are responsible for deciding on the appropriate course of action. Contact STAR Center, or your Technical Assistance Center Via ECCI or eCONTACT ticket if no solution is found FCA US LLC Version 4.1 01/13/2015
Case Number: S1623000012
Release Date: 02/23/1016
Symptom/Vehicle Issue: A White Build Up Exist On Under Hood Silencer Pad
Discussion: The customer may notice a white crystalized build up on the hood silencer pad. This build up is actually MAP: Mono Ammonium Hydrogen Phosphate, a fire suppressant added to the hood silencer pad. MAP is easily dissolved in water. When the hood is saturated gravity may pull some of the MAP down onto the bottom surface of the silencer pad where it crystalizes. STAR Case
This document does not authorize warranty repairs. This communication documents a record of past experiences. STAR Center Online does not provide any conclusions about what is wrong with the vehicle. Rather, it captures all previous cases known that appear to be similar or related to the vehicle symptom / condition. You are the expert, and you are responsible for deciding on the appropriate course of action. Contact STAR Center, or your Technical Assistance Center Via ECCI or eCONTACT ticket if no solution is found FCA US LLC Version 4.1 01/13/2015
The excessive chemical treatment seeping out of the hood pad does not affect its performance in any way.
To clean the silencer pad, simply use soap and water and wipe away with a towel.
Verification: After cleaning verify the white substance on the silencer pad no longer exist. If it does, environmental conditions should be considered such as road salt. Fluid leaks within the engine compartment should also be considered.
