ENGINE IS MAKING A LOUD RATTLING/SCRATCHING SOUND

1979 Ford Ranchero

Tiny

tevinn

April, 24, 2012 AT 10:32 PM

I have a 1979 ford ranchero. My engine is making a loud rattling/scratching sound around the belts/fan area. What is it? It gets louder or rather more frequent when I accelerate, it sounds like something needs some WD-40 or like if a metal fan was scratching the metal.

FOUND 96 RELATED QUESTIONS

2 Answers

Tiny

hmac300

April, 24, 2012 AT 10:43 PM

First disconnect teh fan belt and start car to eliminate noise form accessories. Then check the oil pressure, it may below an dyou have an internal problem. If pressure is good then try decarbonizer on it, follow instructions on can. Ford or gm dealers have the same stuff.

Tiny

CJ MEDEVAC

April, 25, 2012 AT 12:41 AM

MIGHT BE YOUR TIMING CHAIN SLACK

IF YOU'LL HOLD THE THROTTLE AT ABOUT 1500 RPM

THEN SUDDENLY LET OFF

AND THE RATTLE WORSENS FOR A SECOND OR SO

IT IS PROBABLY THE CHAIN

KEEP US INFORMED

THE MEDIC

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