Oil was 1/2 quart low, a friend was borrowing it and the motor started knocking. She drove it about 3 miles before realizing that it was knocking. I put oil in however, I ended up putting 5 quarts in. The motor is not seized up, the knocking has subsided a little bit but has not quit. The knocking gets worse as the vehicle idles up. I was told it could be a crank bearing?? Please help.
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Your hearing lifter noise common in most cars in cold weather I have a 2001 sc1 same engine as yours here's how to get rid of that ticking sound go buy a quart of Lucas synthetic motor treatment change your oil and leave it 1 quart low add the Lucas synthetic oil stabilizer within 1 week you will not hear the noise agian reason your hearing the noise is there's no oil at the top of the engine on a cold start oil when cold is thicker hints why your noise in your engine what Lucas does is eliminate the dry start by the way my engine has 288,000 and does not use a drop of oil after you use this product you should use it every oil change you will see your car will thank you regards Chris
Before driving it anymore I would have someone test the actual oil pressure using a mechanical test gauge to see how much , or little, oil pressure you actually have. The knocking noise could be a hydraulic lifter that is partially collapsed due to low oil pressure or a rod bearing that has been damaged from low oil pressure. If it is just a lifter that is making noise then there's a pretty good chance that the lifter will quiet back down once the oil pressure is normal again. If it turns out that your oil pressure is normal both at an idle and at highway speeds then the noise may be unrelated. You can cause some serious damage by continuing to operate any engine that is low on oil pressure even if the dipstick shows it to be full of oil. Hope this helps and good luck!
It sounds like a weak lifter. When the oil is down 1/2 quart, add 1/2 of dextron ll instead of oil. This will help fill the lifter so it won't collapse again. Also look down the hole when you take of the oil cap and make sure it isn't filled with engine sludge. If you see some, get it cleaned out by a garage.
if you are using a quart of oil every 1000miles,that is NORMAL FOR A MODERN ENGINE.thats why they last so much longer than the old technology.you could try 20/50 oil when you next change as that will help.but worry when it gets to pint every 350 miles.
You don't say how many miles or give a service
history, but, that said I would check the timing belt and
tensioner. When tensioner goes bad is often is reported as a loud knock
or tick. Usually most evident at low RPMs. Another low cost try is to
use a can of seafoam in the oil now, run it a few miles, then change it
for a high detergent, low viscousity oil and drive it a while to see if
the lifters clean up. engine tick is very common, generally due to
lifters oil passages getting sludged up a little for 2nd gen 3.2l's
Before you start to pull the crank out, check your oil pressure via an independent gage. Then if you have around 25-30 psi gage, drain some oil out. Put a quart of Marvel Mystery Oil in and top off . Change oil filter. Drive the truck for a few miles. Change the oil and filter. This should start to break away the sludge that is built up.
You may need to do this up to 10 times before you can go 3000 miles on an oil change.
Now if the oil pressure is extremely low, yes you can change the crank in chassis. I have done it in a pinch before. It is much easier to pull the engine and put a crank in. If the crank is bad, you also have a rod that is bad. You also need to clean all the parts or emminent failure will occur.
I would also change the knock sensors on your truck as well. Hope this helps. Rate me high.