Engine Tick - Anyone else?
Someone else had refuted this info and I spoke to him again about it. He replied, "let the dumb F#@%'s find out for themselves. You did when you didn't listen to me". Point made.
If Ford did use break in additives you can bet they'd be putting a warning in the manual about changing it out early...
And I doubt they'd have put this in there:
"Don't use any friction modifiers or special break-in oils during the first few thousand miles (kilometers) of operation, since these additives may prevent piston
ring seating."
Either your engine is prone to ticking, or it's not...
INFORMATION
Bulletin No.: 02-06-01-022H
Date: August 18 20
Subject:
Information on Engine Ticking Noise
Models:
2001-2007 Chevrolet Silverado (Classic)
2003-2009 Chevrolet Kodiak C4500/C5500 Series
2006-2009 Chevrolet Express
2001-2007 GMC Sierra (Classic)
2003-2009 GMC TopKick C4500/C5500 Series
2006-2009 GMC Savana
with 6.6L Durama
TM)
(VINs D, 1, 2 - RPOs LBZ, LB7, LLY)Supercede:
This bulletin is being revised to add model years and remove RPO LMM. Please discard Corporate Bulletin Number 02-06-01-022G (Section 06 - Engine/Propulsion System).
Some of the above vehicles may exhibit a random ticking noise that is most audible on an engine with a coolant temperature of 70°C (158°F) or higher and from idle to approximately 1500 RPM. The noise usually is most noticeable at the rear of the drivers side front wheelwell. Customers may also comment about hearing a tick noise inside the vehicle at idle such as when sitting at a drive through window. All 6600 Durama
TM) diesel engines have this condition; however some are more audible than others. Enginebuild variation from engine to enginecontributes to differences in perceived volume. All Durama
TM) engines are manufactured to very close tolerances to meet the durability and reliability standards.This noise is caused by the relationship of the engine cylinder block crankshaft journals bearing inserts and the oil film. This relationship may allow a vibration that resonates through the cylinder block and is heard as a metallic ticking noise. The noise could be described as an irregular ticking or clacking sound like random typing on a mechanical typewriter.
This condition has been present in produced for the last 20 or more years. The overall noise reduction in engines produced today makes this noise seem new when in fact it was masked by other noises in the past. Many manufacturers such as and Nissan report a similar condition in their diesel engines. Testing and engine teardowns with this condition reveal no condition that would affect reliability or durability of this engine.
Dealers should not attempt to compare any customer vehicles exhibiting this noise with other similar vehicles as the noise is different from vehicle to vehicle and this may lead to the incorrect conclusion that the vehicle has a condition. This noise is a normal operating characteristic of the engine. This noise has no short or long term effects on the engine. Do not attempt repairs for this noise.
So there are 2 different ticking issues, the one which I have which may be normal and the engine tick my brother has. This may be why Ford is saying the ticking is normal, when in fact we are talking about two different ticking issues.
I frequently hear the ticking noted above in my truck, most often in drive through with the window down, the ticking bounces off the building. This ticking sounds like a pump, it ticks more rapidly at first and slows and eventually stops. With the truck at full temp. The engine tick on my brothers truck completely different issue.
I personally doubt the oil change theory as well. I've had three diesels and none have ticked abnormally.
When the engine is cold and ambient temps are cold (around 30F or less), the truck will start without running pilot injection. That creates the more old-school diesel "clatter." It is typically only anywhere from 30 seconds to a few minutes of actual driving before pilot injection begins operating and the engine sound smooths out. The colder the engine is, the longer before pilot injection starts. Basically, pilot injection staggers fuel pulses so the cylinder firing sounds more smooth and is quieter compared to one "big bang" pulse as in older diesels. But the cylinder needs to be warm to ensure proper combustion so the truck waits briefly before starting pilot injection.
I don't think that's what you are hearing in the case of your brother. That's why I'd love to hear a sample.
Ford Trucks for Ford Truck Enthusiasts
I personally doubt the oil change theory as well. I've had three diesels and none have ticked abnormally.
When the engine is cold and ambient temps are cold (around 30F or less), the truck will start without running pilot injection. That creates the more old-school diesel "clatter." It is typically only anywhere from 30 seconds to a few minutes of actual driving before pilot injection begins operating and the engine sound smooths out. The colder the engine is, the longer before pilot injection starts. Basically, pilot injection staggers fuel pulses so the cylinder firing sounds more smooth and is quieter compared to one "big bang" pulse as in older diesels. But the cylinder needs to be warm to ensure proper combustion so the truck waits briefly before starting pilot injection.
I don't think that's what you are hearing in the case of your brother. That's why I'd love to hear a sample.
What you have described here is the way mine is, more like a lifter clatter vs typewriter tick. But I'm not losing any sleep over it, its so nice compared to 20 yrs. of my 7.3.
I personally doubt the oil change theory as well. I've had three diesels and none have ticked abnormally.
When the engine is cold and ambient temps are cold (around 30F or less), the truck will start without running pilot injection. That creates the more old-school diesel "clatter." It is typically only anywhere from 30 seconds to a few minutes of actual driving before pilot injection begins operating and the engine sound smooths out. The colder the engine is, the longer before pilot injection starts. Basically, pilot injection staggers fuel pulses so the cylinder firing sounds more smooth and is quieter compared to one "big bang" pulse as in older diesels. But the cylinder needs to be warm to ensure proper combustion so the truck waits briefly before starting pilot injection.
I don't think that's what you are hearing in the case of your brother. That's why I'd love to hear a sample.
Just posted the vid. Luckily in my example we have two brand new SD's purchased only 1 day apart, both sitting in my drive way idling, same temp, fuel, his engine ticks mine doesn't.










