Bad news, it need new engine.

[2006330idh]

I have a 01 millenia non supercharge with 133,000 miles on it. Found there no oil pressure in engine which damaged inside cause making nosie.

Now I need look for new engine, I need to know what year, name and model that 2.5l non supercharge engine.

Mazda of calf told me that engine will fix to my millenia by
93-97 mx6
93-02 626
95-02 millenia

They said follow by 2.5l v6 engine



Thank you

[yel-low]

How exactly do you know the engine is bad? There are quite a few noises that the 2.5 makes. Some can be as simple as bad HLAs. If you search on here you will find numerous posts by me on how to clean and diagnose bad HLAs.

Did you find any metal shavings in the oil? Did you drop the oil pan and check for play in the rods?

[2006330idh]

Originally Posted by yel-low

How exactly do you know the engine is bad? There are quite a few noises that the 2.5 makes. Some can be as simple as bad HLAs. If you search on here you will find numerous posts by me on how to clean and diagnose bad HLAs.

Did you find any metal shavings in the oil? Did you drop the oil pan and check for play in the rods?

They said they took oil pressure test and it didt make oil go on top engine. Also while engine running and pull oil dip out and look at oil dip and still full.
It make tap noise with no check engine light on.

[yel-low]

I'm not buying it. I highly doubt your engine is starved of oil. The 2.5 has a VERY robust oil pump and feeds those 24 HLAs quite well. I still stand by the collapsed HLA theory. The oil sender would trigger a light on the dash if you have low oil pressure as well.

Pull the oil pan and check to see if you have any metal chunks.

[2006330idh]

Originally Posted by yel-low

I'm not buying it. I highly doubt your engine is starved of oil. The 2.5 has a VERY robust oil pump and feeds those 24 HLAs quite well. I still stand by the collapsed HLA theory. The oil sender would trigger a light on the dash if you have low oil pressure as well.

Pull the oil pan and check to see if you have any metal chunks.

I just brought Lucas so I can pour in oil to see if that solve problem, will that be okay?

[yel-low]

Lucas won't do anything for low oil pressure. Heavier oil will work against you in refilling the collapsed HLAs. Drain your oil and collect it. Inspect to see if you see any metallic flakes in it.

[2006330idh]

Originally Posted by yel-low

Lucas won't do anything for low oil pressure. Heavier oil will work against you in refilling the collapsed HLAs. Drain your oil and collect it. Inspect to see if you see any metallic flakes in it.

Ok when if I drain oil out and show nothing. Now what next?

[yel-low]

If you do not find anything in the oil then the next step is to drop the oil pan and rock each of the rods. You should be feeling for play on either the crank or piston end. Inspect the bearing to make sure they have not spun or have deformed.

If the bottom end checks out then you probably have a collapsed HLA as I mentioned or a bad timing belt tensioner. This can allow the timing belt to jump and lead to little or no compression.

I still do not trust that your mechanic found no oil pressure. Where did he tap into? What was his exact pressure reading? Why is your oil sender light (i.e. Idiot light) not on?

If there was no oil to the head then your cams would have seized a long long time ago. I would pull the front valve cover and inspect the condition of the cam. If you are still not convinced (nor am I) you can run the engine with the front cover off and watch the oil fly everywhere and then you can post back that you do indeed have oil flow.

The mechanics these days are ONLY out to get a few dollars. I don't believe for one moment that you are not getting oil to the head.

[2006330idh]

Originally Posted by yel-low

If you do not find anything in the oil then the next step is to drop the oil pan and rock each of the rods. You should be feeling for play on either the crank or piston end. Inspect the bearing to make sure they have not spun or have deformed.

If the bottom end checks out then you probably have a collapsed HLA as I mentioned or a bad timing belt tensioner. This can allow the timing belt to jump and lead to little or no compression.

I still do not trust that your mechanic found no oil pressure. Where did he tap into? What was his exact pressure reading? Why is your oil sender light (i.e. Idiot light) not on?

If there was no oil to the head then your cams would have seized a long long time ago. I would pull the front valve cover and inspect the condition of the
cam. If you are still not convinced (nor am I) you can run the engine with the front cover off and watch the oil fly everywhere and then you can post back that you do indeed have oil flow.

The mechanics these days are ONLY out to get a few dollars. I don't believe for one moment that you are not getting oil to the head.

That true, I going bring millenia home this weekend. Do you have info that to check and remove parts to inspect it?

[Kutcht1]

What you are asking for was explained somewhat in the above post. If you do not know or understand what is being explained maybe it is not a job you would like to take on. There is a pdf of this manual pinned in these forums. You can take a look at it (hundreds of pages long so search for your info) and maybe find a friend who can help with figuring it out. I agree with yel-low on that they did not properly diagnose what your problem is so you have to take matters in your own hands and make it a GREAT learning experience. Do some searching, turn some wrenches and then get back with findings for more feedback.
Good Luck.
TomK