01 Super Crew Serviced today
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New User
Joined: Jul 2002
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From: Sidney USA
01 Super Crew Serviced today
im new here but i thought id post and tell ya what ford told me. I had it serviced cause it was knocking in the morning you know the cold engine knock well they told me it was normal according to Fords Tech board becuas of the skirted pistons. Does that sound right or were they blowing me off. Tell me what you think. Thanx in advance.
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Joined: Jan 2002
Posts: 351
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From: Delaware
01 Super Crew Serviced today
Hey Larry,
Knocking on cold starts is not normal. I repeat, NOT NORMAL. My 5.4 does not do it, and if it ever does, it is going back!!
Piston slap is caused by too much clearance between a piston and the cylinder bore, not by the piston skirt. When the engine warms, the piston expands slightly, and the noise goes away. I had a 78 Cougar with the 351 engine with piston slap on a cold morning. I complained to the dealer, and they tore the engine down, and replaced #2 piston. I put 90,000 on that engine with no problems, and no more knocks.
Keep in mind that piston slap doesn't mean the engine will fail. Many engines have run hundreds of thousands of miles that way. However, it is not supposed to do it, and Ford should offer to fix it.
Take it back to the dealer and demand a fix. Just my .02. Good luck!
Bru
2002 F150 Super Crew
Black 4X4 Lariat
5.4 Engine Ford Chrome Bars
Ford Bedliner
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