Intermittent thud upon cold start?
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Joined: Feb 2015
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Intermittent thud upon cold start?
Just heard this for the first time the other day, started it up and sounds nothing like a rod knock or anything mechanical. The first time it happened i shut it right off. upon restart nothing. I am not sure if its the dreaded "chuffing" from a hanging valve or what. It can't be many other things. once warm it does not seem to make the noise. truck runs strong, burns very little oil compared to what I read. maybe a half to one quart in 1000 miles. It started doing this after i changed the oil. coincidental? maybe. running rotella-t 15w-40. fl1995 PSD filter. last oil change (before i purchased truck) was at a WalMart. anything to look for without digging deep? have a trip in two weeks so this little gremlin is an inconvenience 
. any thoughts or insight would be much appreciated.
. any thoughts or insight would be much appreciated.
More Turbo
Joined: May 2009
Posts: 604
Likes: 2
From: Inman KS
My experiences. They sound similar to yours??
Link: https://www.ford-trucks.com/forums/1...-start-up.html
Yeah kinda a "thud-thud-thud" on cold start up? Mine lasted a few seconds or till oil pressure rose....
Link: https://www.ford-trucks.com/forums/1...-start-up.html
Yeah kinda a "thud-thud-thud" on cold start up? Mine lasted a few seconds or till oil pressure rose....
Thread Starter
|
Senior User
Joined: Feb 2015
Posts: 194
Likes: 0
My experiences. They sound similar to yours??
Link: https://www.ford-trucks.com/forums/1...-start-up.html
Yeah kinda a "thud-thud-thud" on cold start up? Mine lasted a few seconds or till oil pressure rose....
Link: https://www.ford-trucks.com/forums/1...-start-up.html
Yeah kinda a "thud-thud-thud" on cold start up? Mine lasted a few seconds or till oil pressure rose....
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okiepc1
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
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Sep 20, 2009 08:33 PM
