"Clunk" on startup?
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Junior User
Joined: May 2008
Posts: 76
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From: Pitt Meadows, BC
"Clunk" on startup?
Hi folks,
Just noticed a new phenomenon with my '01 F350 V10.
About 2-3 seconds after starting it up there is a dull 'thud' close to my feet.
Not sure if it's normal and I've never just noticed before, or ???
Also, to read the PCM for transmission codes do I need to head to the dealer as I've heard that only the 'good' readers will pick up tranny codes?
Thanks,
Mike
Just noticed a new phenomenon with my '01 F350 V10.
About 2-3 seconds after starting it up there is a dull 'thud' close to my feet.
Not sure if it's normal and I've never just noticed before, or ???
Also, to read the PCM for transmission codes do I need to head to the dealer as I've heard that only the 'good' readers will pick up tranny codes?
Thanks,
Mike
Elder User
Joined: Mar 2006
Posts: 588
Likes: 0
From: Bellville TX. Wof Houston
Not sure on the 350's but the 250's they didn't greese the drive shaft good enoulf.
while starting to move the truck you will hear a thud.
you can pull the ds, put a little greese in there and enjoy a clunk/thud free driving.
I belive thers a seal on it, with a metel keeper. many have said they have cut this only to replace it with a wire tie. with no issues
while starting to move the truck you will hear a thud.
you can pull the ds, put a little greese in there and enjoy a clunk/thud free driving.
I belive thers a seal on it, with a metel keeper. many have said they have cut this only to replace it with a wire tie. with no issues
Hook it, I'll pull it.
Joined: May 2007
Posts: 15,037
Likes: 4
From: Grand Lake, La.
You are hearing the blend door for the heater under the dash. It works off vacuum, so when you start the truck, the vacuum pump comes on. When there is enough vacuum the door closes with a clunk.
Very common.
Very common.
Thread Starter
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Junior User
Joined: May 2008
Posts: 76
Likes: 0
From: Pitt Meadows, BC
Thanks for the responses guys.
Maybe I'll continue to try the 'cringing face' with my wife for a bit longer to see if she'll concede to an upgrade.....mmm, '11 F350
Cheers,
Mike
Maybe I'll continue to try the 'cringing face' with my wife for a bit longer to see if she'll concede to an upgrade.....mmm, '11 F350
Cheers,
Mike
Postmaster
Joined: Oct 2008
Posts: 3,924
Likes: 6
From: Richmond BC
if memory serves me right if you turn the HVAC to OFF before shutting down the truck, it wont make that noise when restarted..
but tbh i dont ever remember to try it when im actualy out in the truck.
but i have been could offguard but that thump on occasion and jumped.
but tbh i dont ever remember to try it when im actualy out in the truck.
but i have been could offguard but that thump on occasion and jumped.
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