5.4 slapping
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5.4 slapping
I got an appointment for my chains, tensioners and guides to be replaced in my 5.4 Triton because they make noise on cold start up. I've been quoted 1,500 with a 2 year warranty. My question is how good are the oil pumps in these trucks it has 250000 miles and has good oil pressure but my mechanic says it's hard to drop oil pan without dropping the front diff. So can you replace oil pump and pickup tube through the front timming cover? Or if no piece's of the plastic guides have falling in the oil pan and pickup tube is clear should I just leave it? Thank you!
Hotshot
Joined: Jul 2005
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what year is your truck ? When did it start making the noise ? What brand oil and filter do you use ? The motors prior to 2004 did not have much cam chain problems. Are you hearing piston slap ? How long does it last after startup ?
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New User
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2000 5.4 and it don't sounds like piston slap it literally sounds like a chain hitting metal. After 2 seconds it's gone I'm pretty sure a tensioner isn't pumping up right away and alowing the chain to hit the guide for a second. 5w30 motercraft and a motercraft filter
Fleet Owner
Joined: Apr 2008
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The problem you can run into is any debris in the pan from the guides breaking can clog the oil pump pickup screen at the bottom of the pan. If this happened the oil flow will be reduced and the engine can starve for oil.
Laughing Gas
Joined: Jan 2006
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From: Minnesota
Only 2 seconds and it's gone? Mine has been doing that for 50,000 miles. Lots of us have that start up slap and just leave it alone....I do.
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Senior User
Joined: Jul 2004
Posts: 247
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From: Illinois
I had the oil pan off my 99 once, didn't need to drop the front axle, just remove one bolt and you got plenty of clearance to get it off
I'd need a lot more than 2 seconds of noise to pay $1500 to get rid of it.
our 03 has 355000 miles on it, makes a lot of noises and has for the last 100K
I'd need a lot more than 2 seconds of noise to pay $1500 to get rid of it.
our 03 has 355000 miles on it, makes a lot of noises and has for the last 100K
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More Turbo
Joined: Mar 2013
Posts: 523
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From: Carrollton, Ga
I just put new chains and tensioners on my wife's 2002 with a 5.4 and I was able to replace the oil pump without removing the oil pan. The driver's side bolt that attaches the pickup tube to the pump housing is a little farther back than the passenger side making it a bit more tricky but it is doable with a flex head ratcheting wrench. 8MM or 5/16. I probably dropped the bolt 5 times into the pan before I got a flex head wrench but was able to retrieve it each time by using a telescopic magnet. It never went into the deep part of the pan. Melling makes a high volume oil pump which I used because her truck has 277K on it.
Good luck guys!
FTE Community Team
Joined: Jan 2019
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I was able to replace the oil pump without removing the oil pan. The driver's side bolt that attaches the pickup tube to the pump housing is a little farther back than the passenger side making it a bit more tricky but it is doable with a flex head ratcheting wrench. 8MM or 5/16. I probably dropped the bolt 5 times into the pan before I got a flex head wrench but was able to retrieve it each time by using a telescopic magnet. It never went into the deep part of the pan.
You didn't happen to take pictures, did you?
More Turbo
Joined: Mar 2013
Posts: 523
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From: Carrollton, Ga
This was the only picture I saved. You can see a gap at the bottom where the front cover goes. That’s the gap you have to work thru. The oil pump goes around the crank shaft behind the lower timing chain gear.
FTE Community Team
Joined: Jan 2019
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Thanks!
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