'95 22r-e knocking when cold
#1
'95 22r-e knocking when cold
New to the forums, and was wondering something. Recently I noticed that when started from cold (about 10F), you can hear something that sounds sickeningly like rod knock, but at a frequency that makes it sound like *all* the rods are knocking. It gets louder with RPM, and is almost impossible to hear at anything below 1500. I discovered this one morning when I was late and didn't have time to let it warm up as usual. I heard it as I was driving down my driveway, and I panicked, shut it off, and checked the oil, which was at the correct level. So I made what could have been a very stupid decision, and got back in and continued driving. Within a minute or two of driving, the sound was gone. I was running 10w-30 quaker state high mileage at the time, and I theorized that the oil was too thick when cold, so I changed that for 5w-30 of the same type. This didn't change it one way or the other. Am I looking at something major or expensive to repair? Thanks in advance.
Last edited by cjolson140; 01-11-2010 at 03:10 PM.
#4
had same problem with my wife's caravan, I was using 10w-30 and 87 octane gas. then went to 5w-30 castrol and 89 octane gas. that thing has 300k miles on and still kicking. (not bad,to be a chrysler)
#7
Banned
Nice. I am at 360k kms, about 235000 miles, and i dont know if the timing chain and stuff has ever been changed. Its pretty loud sometimes.
So i plan on doing mine this summer.
So i plan on doing mine this summer.
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#8
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My guesses would lean towards either the timing chain, but it's more of a metallic rattle than a knock; worn oil pump; or maybe the rod bearings are towards the worn side and the oil is too thin- thinner oil will pump around faster but will also squeeze out of loose clearance (read as "worn") areas faster than a thicker oil would until at least the multi-weight feature of the oil thickens when it warms up.
... just a thought.
... just a thought.
#9
@abecedarian
Yeah, it has a seperate noise from the knocking, kind of a like a rattle, right around 2000 RPM, but not below or above that speed. I assume it's the timing chain, which is why I want to get that fixed soon.
Yeah, it has a seperate noise from the knocking, kind of a like a rattle, right around 2000 RPM, but not below or above that speed. I assume it's the timing chain, which is why I want to get that fixed soon.
#10
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Okies.
With 275K on the engine, if the chain's never been serviced it's well over due. The typical chain service life is around 100K miles. That's not to say with regular oil changes and such it won't go longer but it seems you're on borrowed time here.
With 275K on the engine, if the chain's never been serviced it's well over due. The typical chain service life is around 100K miles. That's not to say with regular oil changes and such it won't go longer but it seems you're on borrowed time here.
#12
I'm the second owner, and the guy I bought it from had the oil changed every 3000 miles (he even has documentation), which probably explains how it's gone this long on the original timing chain.
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