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engine size and towing

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Old May 17, 2011 | 04:43 PM
  #1  
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engine size and towing

Could a 4.6 tow a 5th wheel with a 500 hitch weight and over all weight of 2800 unloaded (a 20' lightweight 5th wheel trailer). And how can you tell what size engine is in a 2005 crew cab. I paid cash from a private owner, was told it was a 5.4 but I don't know how to check it to be sure.
 
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Old May 17, 2011 | 10:05 PM
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4.6 should pull 2800lbs without a problem, but being it is a screw, the payload capacity isn't the greatest to start with and loaded with people and gear +500lb tongue weight might get close to the payload rating. It should say on the under side of the hood what motor you have, the intake/air box is different on the 5.4 too. The payload capacity should be listed on the drivers side door IIRC.
 
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Old May 18, 2011 | 05:20 AM
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The first picture is the engine bay of the 4.6L
Second picture is the engine bay of the 5.4L
 
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Old May 18, 2011 | 12:57 PM
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It's not a surefire way, but just check the F150 badge, it'll say 5.4 Triton, or just Triton if it's the 4.6
 
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Old May 18, 2011 | 01:05 PM
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The top of the air filter box says "5.4L Triton" also...dead center of the 2nd pic I posted earlier.
 
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Old May 18, 2011 | 01:07 PM
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Originally Posted by BackwoodsF150
It's not a surefire way, but just check the F150 badge, it'll say 5.4 Triton, or just Triton if it's the 4.6
I second that.
 
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Old May 19, 2011 | 02:27 PM
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Engine size

Isn't it on the door sticker? There's also a website (which I can't find right now) that you plug in the s/n of the truck and it will show the window sticker on it for truck around 5-7 years or newer.
 
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