PISTON SLAP
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Joined: Nov 2002
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PISTON SLAP
2001 5.4 F150 with piston slap during cold start. 25K miles. Ford says it's normal and wont do anything about it. Their only response it to purchase an extended warranty . Has anyone heard the same?
Logistics Pro
Joined: Mar 2002
Posts: 3,881
Likes: 84
From: Wake Forest, NC
PISTON SLAP
Good Luck. I seriously doubt you will get any dealership to recognize piston slap as a warrantable item. Many newer engine do it for whateer reason and its commonly accepted that this is a "normal" condition. GM and FORD are both this way about their engines. Especially if the noise goes away at startup. Sucks for long term confidence but I don't see it happening. I've heard of this many times to answer your question directly and it makes me made everytime I hear them blow it off as "normal".
Chris
Chris
Junior User
Joined: Mar 2001
Posts: 62
Likes: 0
From: Austin, TX
PISTON SLAP
If its just because Ford is running forged pistons or something, I wouldn't be worried about it. If this is the case, you NEED the larger bore because they expand differently than cast or hyper pistons.
If they were to "fix" the problem I can only see them fixing it by downgrading you to either of the above piston types. That would strike me as crappy for the consumer, all to alleviate slapping during startup.
If this is unrelated to having forged pistons, then ignore what I have to say
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If they were to "fix" the problem I can only see them fixing it by downgrading you to either of the above piston types. That would strike me as crappy for the consumer, all to alleviate slapping during startup.
If this is unrelated to having forged pistons, then ignore what I have to say
.
Freshman User
Joined: Sep 2002
Posts: 26
Likes: 0
From: brown deer WI
PISTON SLAP
I've posted twice before on this. Once on this forum and the other on the engine forum, both with the subject "piston slap".
I'm pissed, I'll be buying an extended warranty because of this, THAT SUCKS! That's $2,000 I could have spent on my '69 428CJ Mach1.
I can't imagine anyone buying any vehicle that makes this much clatter when first started up. Mine didn't. Only after I had it a couple thousand miles did I start noticing it (@~25kMI).
Forged pistons or not, I don't consider gouged cylinders and shards of metal spitting out of the exhaust, a performance upgrade! OK that's a slight exaggeration.
I'm pissed, I'll be buying an extended warranty because of this, THAT SUCKS! That's $2,000 I could have spent on my '69 428CJ Mach1.
I can't imagine anyone buying any vehicle that makes this much clatter when first started up. Mine didn't. Only after I had it a couple thousand miles did I start noticing it (@~25kMI).
Forged pistons or not, I don't consider gouged cylinders and shards of metal spitting out of the exhaust, a performance upgrade! OK that's a slight exaggeration.
Logistics Pro
Joined: Mar 2002
Posts: 3,881
Likes: 84
From: Wake Forest, NC
PISTON SLAP
The only recourse I can think of is to get them to put in writing that its normal and won't have any detrimental effect on the engine. Then, later, if it has a problem thats related to loose tolerances in the pistons you have something to go back on. Not the most secure option, but alot cheaper than $2000.
Unfortunately all I can say is MANY MANY people have complained about this in all types of GM vehicles and GM would never do anything about it "they all do that" So i guess its normal right?
Unfortunately all I can say is MANY MANY people have complained about this in all types of GM vehicles and GM would never do anything about it "they all do that" So i guess its normal right?
