Question about 1983 Ford Fairmont

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Big end there is a knocking sound and rattle coming from motor, if this is big end is it repairable? holden berlina 89.

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I suggest having the engine rebuilt.

Posted on Nov 26, 2008


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The most common thing on commodores when going over bumps or over pot hole in the road is rattle or knock from front.
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Noisy motor front end vn v6 commodore, bad rattle sound??????????


It sounds like your timing chain may be worn, A bit of a pain to change but do-able if you have the tools and some time. The harmonic balancer makes more of a knock than a rattle.

Mar 04, 2012 | Cars & Trucks

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My 96 chrysler lhs has a knocking/rattleing sound coming from the bottom engine and as you push down on the gas the faster you drive the louder it rattles


if the noise is coming from the bottom end of the motor then you have either bad connecting rod bearings or bad crank bearings.if when you snap the throttle you hear a double knock then its connecting rod bearing if not then its crank bearing.a collapsed piston can sound low in the engine and its usually a dull knock noise.if you have the engine running and the noise is there and you pull off one plug wire at a time(and reconnect it after checking) and the noise goes away or mostly goes away with the wire unhooked then the cylinder that the noise changed is the cylinder that has a bad piston.

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Hi, i have a toyota fielder 1.8cc with a some problem which has now come up. when i switch on esp in the morning after staying overnight, it produces some really annoying sound from the engine. when the...


If it is a 'squealing' noise it's probably the alternator/power steering drive belt. Before you turn on the engine in the morning, lightlt smear or spray some oil on the inside of the drive belt to lubricate it. If the squealing stops/disappears, then that's the fault ..

That squealing noise can be caused by an incorrectly tensioned belt, or a worn belt. Replacement is the only option.

The other frightening sounds can best be described as 'rattles' or 'tapping'. When a car stands overnight all the oil drains back into the sump (oil/pan).

There are two things (usually) that can be cause the rattle/tap:
1. Because the oil hasn't been pumped around the system, at start up worn big end bearings can rattle and tap on the crankshaft until the oil 'fills the gaps'. The tapping/rattling goes away as the engine warms and oil is pumped around the lubricating system.

A 'bottom end tapping' is a symptom of worn big ends (they are bearings at the bottom of the piston and fit around the crankshaft).

2. A rattle/tapping from the top of the engine can either be a worn camshaft or 'lazy tappets'. Again, when the engine warms and oil gets to the camshaft and tappets (also called 'hydraulic lifters) the noise will disappear.

If your car has this rattling/tapping noise - identify whether it is coming from just under the rocker box (ie the camshaft/tappets..) or the bottom end of the engine (big end bearings).

If the noise is coming from the top of the engine, try an oil change with a can of thick 'additive' included. A lazy tappet (lifter) isn't too much to worry about. A worn camshaft will affect the performance of the engine, though continue to do its job. An oil change with an additive included may help in quitening things down.

A bottom end tap/rattle (or 'knock') - the sooner that is sorted out the better.

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2005 Forester X Engine Knock...big end bearing??? That much???


The lower end of your motor that has the knocking noise will sound like a deep penatrating thud. That will be the rear bearing for the crack shaft. You can find a cheaper place to have it repaired. $3,500 sounds more right to repair at most places

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Would a faulty speed circuit sensor make the car idol noisy like a rattling knocking noise. noise is louder when accelerating.


NO, it sounds more terminal than that, if you have a knocking sound or noise coming from your engine it could be a few different things, 1. big end bearing, need to rebuild bottom end of engine this is the main one, best get it to a mechanic to clarify the problem for you

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Knocking sound coming from around the oil pan.


This is a big sign that you might have a spun rod bearing if it's coming form your oil pan. Use a screwdriver and put the flat tip end on the oil pan and the plastic end near your ear like a stethascope and if you hear a knocking it's probaly a spun rod bearing or a bent or warped wrist pin on the bottom of your piston. So some good advice is to not run it anymore until you get it a mechanic to fix it. If you want to do it yourself you have a job ahead of you but refer to an Haynes Auto Repair Manual and you will have fun doing a job by yourself. I hoped this help!

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Knocking noise from engine at > 2000 RPM.. any ideas??


it does sound like a big end bearing and yes the piston will come outta the bloc k eventually if you keep driving
it can be replaced no need for a new engine
you will need a engine if it does come outta the side
but to fix a big end is not that much, if u need a new engine for your veichle is about a few grand

but 100 percent big end bearing i done one last week on a suburu wrx imprezza turb all up it was 550 or so

Jul 03, 2008 | 1998 Subaru Impreza

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