Noise on shut down of engine - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 5 (permalink) Old 07-06-2009, 02:31 PM Thread Starter
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Noise on shut down of engine

When I shut my engine off ( very noticeable ) it makes a rattling sound underneath the truck. It sounds like it is coming from the tranny area. Could this be a clutch/flywheel noise? I also have noticed it over a hard bump. There does not seem to be anything loose under the vehicle. Any ideas?

1997 Crew Cab F250 4x4 5spd XLT PSD
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post #2 of 5 (permalink) Old 07-06-2009, 02:45 PM
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If you have a stock dual mass flywheel, that's where the noise is comming from. Does your whole truck shake like a wet down when you start it sometimes? If so, that DMFW is the problem. It's a common issue with those.

It can be replaced w/ another one, but the shaking will come back. A DMFW can also be replaced w/ a Single Mass Fly Wheel (SMFW) along w/ a new clutch.

Good luck

'95 PSD w/ a couple mods. Really it's nothing special, except for the fact it's frigin awsome!!!
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post #3 of 5 (permalink) Old 07-06-2009, 04:30 PM Thread Starter
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The truck does not shake on start. It only shakes on shut down. It does not shake the whole truck. It just makes a shaking sound.

Thanks

Jason

1997 Crew Cab F250 4x4 5spd XLT PSD
Way too many miles on it!
230xxx and counting!
Starting over again since I sold the 6.0!
MBRP exhaust
Bully Dog Power Pup
S&B Intake
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post #4 of 5 (permalink) Old 07-07-2009, 03:16 PM Thread Starter
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I removed the inspection cover and found that I could move the piece in front of the flywheel teeth side to side about a half inch or more in either direction. I am assuming that this is not normal. It makes the springs in the flywheel rattle. (hence the noise) So, I am assuming it is time for a clutch and flywheel?? Is the solid better? Parts recommendations? LUK? South Bend?

Thanks

Jason

1997 Crew Cab F250 4x4 5spd XLT PSD
Way too many miles on it!
230xxx and counting!
Starting over again since I sold the 6.0!
MBRP exhaust
Bully Dog Power Pup
S&B Intake
Dieselsite Coolant Filter
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post #5 of 5 (permalink) Old 07-07-2009, 07:24 PM
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Yep. That back & forth play you decribed is what is making noise. When it get's really bad it will shake the whole truck at random times during starting, while idleing, a nd during shut down.

I put a LUK in mine a few years ago. No problems and all shaking went away. There is probably better out there, but at the time that i did mine, a LUK was all i needed. If i did it again, i'd go w/ one that could handle more HP than the one I got.

'95 PSD w/ a couple mods. Really it's nothing special, except for the fact it's frigin awsome!!!
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