Engine Knock

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Jul 7, 2003 | 01:56 AM

acerockola77

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From: WA

Engine Knock

I recently took my truck to my mechanic just for a regular check up since i just bought it, realiable guy i must add. He told me that I had a slight engine knock and that i would probably have to rebuild it in the next 50 to 100 thousand miles... I know thats a long ways off but there's only 92k on this truck, from what i've heard about the strait six there's people have driven these things to half a million with just regular oil changes... So what would cause this? I just aquired this truck so i'm not quite sure how the previous owners took care of it.

Thanks

Jul 7, 2003 | 02:34 AM

andym

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Joined: Mar 2002

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From: Bonita Springs FL

Engine Knock

I think you just answered your own question with your last statement about the previous owners.

Also, 300's are long-lasting motors, but that doesn't mean every single 300 ever made will coast to 500k miles with just regular oil changes. There's going to be a few that are the exception rather than the rule as it pertains to long life.

Jul 8, 2003 | 10:31 PM

serving_time

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Joined: Jul 2003

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From: North of Toronto, Ontario

Engine Knock

The above comment was right on the money. The care given by the provious owners makes all the difference. I bought a 91 F150 with a 302, and E4OD. 120K. Lots of life left. By 150K it was time for a new tranny. By 180K I was swaping motors. With proper care, some motors will make it to the 400, or even 500K mark, but without, like yours, 100K may be it.

Jul 9, 2003 | 03:14 PM

guitarplayer_101

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Joined: Jul 2003

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Engine Knock

The 300 may be bulletproof, but not all of them last forever. Your's might make it to 100k and that might be it for it.

Jul 9, 2003 | 07:46 PM

rhetor

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From: redding U.S.A.

Engine Knock

Another thing with the 300 though, once that slight knock turns to a severe knock, and it'll probably take a while longer than it would on most engines, it'll still "work"

Thats the sad truth. I have 83k and i think she's burning oil

Jul 10, 2003 | 03:05 PM

tmcalavy

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Engine Knock

Back when I was YAS (young n stupid), my 83 F150 with 300 I-6 had a slight knock. Started it up one day and the slight knock was downright loud...decided to drive it home anyway. Made it 90 miles then sent a rod out the side...only 10 miles from home. Moral: 300's will go and go and go...even when the operator is stupid enough to make them self destruct.
Monitor the knock with your buddy, treat it right, and start saving for a rebuild or a long block replacement. Just my 2 centavos.