HELP!-I need 2 make an E350 quieter

[ppsi]

Hello-my E350 is way loud inside the cab. It is a 96 and I have replaced the sound deadening material on the engine side of the doghouse with a heavier duty double layer material and this has helped but it is still rediculously loud inside the van. Can anyone give some recommendations on what steps to take. I understand the majority of the sound comes from the injection design so maybe wrapping the valve covers would help but I don't know what would be a good material. Would wrapping the exhaust & turbo-w-"header" wrap help?

[fordnut85]

Cover the outside of the dog house with a product like Dynomat, you can usually buy the stuff at high end audio shops or from places like Crutchfeild

[ppsi]

If I cover the outside-w-Dynomat I will have to somehow cover it-w-some kind of carpet or something because it is right there if you know what I mean. I did the inside (engine side)-w-2 layers of a material much more effective than dynomat. Can you tell me if the baffle or whatever it's called id needed? It is a big empty plastic box that "t"s into the intake tube from the air cleaner to the turbo inlet. I'm wondering if this is a quieting item

[SQUID135]

CONVERTER, They get loud (replace it, mine was the same way)

[kinghawg98]

what is this 'much more effective' material? I need something on my firewall, still too loud in my truck

[SQUID135]

Have a tranny shop check it ( Its the converter they fall apart on the inside, REAL LOUD)
smell your trans fluid, if you dont correct it it will contaminate the whole tranny $$$$$

[dpuckett]

We have an E450 at work, and I took the doghouse off, and bent the little clips some more, reattached it, and now I can hear myself think as I lug up the hills. Might be something as simple as that.

Dan

[jgorm]

I've done a ton of work and its helped out tremendously! I recently covered the doors in my fake dynamat (jiffy seal and tin foil) and then I covered that with peel and stick insulated foam with a metal covering (home depot stuff for covering duct work). The doors made a big difference at idle, but I haven't gone on a trip yet to really know how much insulating the doors helped. I have more info here. Soundproofing the cab and doghouse

[mxc]

make sure the doghouse is sealed on there tight. i had to make special clips on my old van but it helped a lot.