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Old 02-25-2010, 07:02 PM
 
Location: Earth
4,237 posts, read 24,774,443 times
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Sorry if it sounds silly....just wondering if coil springs actually ever wear out? The only time I can think to replace is if they've been compressed by too much weight for so long that they do not have anymore spring to them.

I've only seen a set do this once, because someone dropped a big V8 engine into a 4 cylinder truck and never changed the coils to accomodate for the extra weight.
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Old 02-25-2010, 07:06 PM
 
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Quote:
Originally Posted by Deez Nuttz View Post
Sorry if it sounds silly....just wondering if coil springs actually ever wear out? The only time I can think to replace is if they've been compressed by too much weight for so long that they do not have anymore spring to them.

I've only seen a set do this once, because someone dropped a big V8 engine into a 4 cylinder truck and never changed the coils to accomodate for the extra weight.
Yes, they do go bad. I had a 1980 200sx that had the original springs. I literally thought it was lowered, but actually the springs all sagged. It still drove fine so I never worried about it.
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Old 02-25-2010, 07:14 PM
 
Location: Eastern Washington
17,213 posts, read 57,052,961 times
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Generally speaking, coil springs don't wear out. My 65 GMC truck and 71 Impala both have coil springs up front, the Impala has coils all round, the springs are as good as they were when new. You may notice a little settling on a new car with coil springs but this generally stabilizes in the first year or so it's on the road.

Of course if you do an engine swap and put in a drastically heavier (or if you are really smart, drastically lighter) engine, you will need different coil springs, maybe having to find something that will fit, or have springs made.

I guess if you drive "Baja style" a lot, you might eventually fatigue and break the springs.
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Old 02-26-2010, 01:33 AM
 
33 posts, read 285,924 times
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when you notice your car's height aint thesame as before, a saggy profile and a sloppy ride are some indicators that your coil springs are at the end of their life.
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Old 02-26-2010, 03:43 AM
 
Location: Ohio
2,175 posts, read 9,168,657 times
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Coil springs almost always out last the normal life of a car unless it is used to constantly transport heavy loads.

Like my mother-in-law.
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Old 02-26-2010, 03:53 AM
 
Location: New Jersey
2,715 posts, read 11,904,578 times
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I had a coil spring break on my old 96 Nissan Altima. Had to have it towed in because it rubbed heavily on the front tire.
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Old 02-26-2010, 06:01 PM
 
Location: Northeast Tennessee
7,305 posts, read 28,218,445 times
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SOME sag after awhile. My 1973 Pontiac Grand Ville has the original springs on the front and it sets lower than it did from the factory. The rears were done years ago.
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Old 02-27-2010, 08:03 PM
 
1,628 posts, read 4,039,166 times
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My 67 Galaxy had sagging front coils too, and it was only 8 years old at the time.
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Old 02-27-2010, 08:24 PM
 
19,023 posts, read 25,959,017 times
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More modern plow trucks fatigue the ft coils pretty quick.
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Old 03-01-2010, 10:59 AM
 
Location: U.S.A.
3,306 posts, read 12,218,162 times
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They certainly wear out. Or at least fall out of their working load range.

Cheap people like to stick spacers between the coil turns to try and preserve them a little longer.
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