Rod Knock at 65000?

[toddnos]

Is the VQ known for rod knock? Anyone else ever hear anything that sounds like a rod knock? I notice after a long drive i am hearing what sounds like a knock....i havnt even sent the second payment, and ive had someone back into me, and now this....wtf? anyone with any advise or experience would ease my mind greatly...thanks!
Modified by toddnos at 10:47 AM 3/3/2008

[gwoods]

Well I'm surprised your engine is staying together at 65,000 rpm!

What grade fuel are you running?

Any new lights on the dash? CHECK ENGINE?

I'd try running 91 octane Chevron or Mobil and see if it goes away. If it doesn't go away take it to the dealership. The damage from knocking is progressive not immediate.

[rn79870]

CHECK YOUR OIL!

[toddnos]

Well I'm surprised your engine is staying together at 65,000 rpm!

What grade fuel are you running?

Any new lights on the dash? CHECK ENGINE?

I'd try running 91 octane Chevron or Mobil and see if it goes away. If it doesn't go away take it to the dealership. The damage from knocking is progressive not immediate.

65000 clicks on the odometer..lolno cel...i use 91 octane....why chevron or mobil?i really hope its a valvetrain situation, not the rods...but i have a sneaking fealing it is what it is...

[toddnos]

CHECK YOUR OIL!

i did...i also changed it too...

[gwoods]

Manufacturers rate gasolines, Chevron and Mobil are "top tier" gasolines.

91 octane a Joe's gas and go may not be as good as 91 octane at Chevron. Chevron has a lot of additives in it that help keep your motor clean inside. I run a tank of Chevron every 4th tank and use quick trip the other 3 tanks in between.

When do you hear the noise? Any chance of you posting a sound clip? Anything loose under the hood? Like the oil filler cap or dip stick?

[toddnos]

Manufacturers rate gasolines, Chevron and Mobil are "top tier" gasolines.

91 octane a Joe's gas and go may not be as good as 91 octane at Chevron. Chevron has a lot of additives in it that help keep your motor clean inside. I run a tank of Chevron every 4th tank and use quick trip the other 3 tanks in between.

When do you hear the noise? Any chance of you posting a sound clip? Anything loose under the hood? Like the oil filler cap or dip stick?

i usually run shell, or chevron 91..who knows what the previous owner did..i know the dummy switched from synthetic to regular motor oil on the regular, so imo that may have caused some rod bearing damage.

My friend and i just went and idled the car, but it didnt knock..it happens after i drive...i may be able to capture it on a sound clip, but doubtfull, because its not a huge old chevy v8 knock, but is still sounds like one.nothing loose i can tell...

[gwoods]

Are you changing the oil yourself?

I had some oil consumption on my 07 when I first bought it then I started letting the dealership do the oil changes and it stopped. I noticed that the dealership is using an oil additive $4.95 on my bill?

Jeff

[destroyyourmind]

I dont know anything about a g35 motor but it could be your valves floating it tends to happen at higher rpm's

[precision93]

Mine used to make a tapping noise after long trips. Later it starting doing it after short trips. Took it to the dealership, and they replaced the motor under warranty.

[toddnos]

Are you changing the oil yourself?

I had some oil consumption on my 07 when I first bought it then I started letting the dealership do the oil changes and it stopped. I noticed that the dealership is using an oil additive $4.95 on my bill?

Jeff

yes i just did the first oil change since i bought it. it dosent consume oil at all. I check the oil 3 or 4 times a week due to all the things i read about the g burning oil..i wonder what additive they are using at the dealer, and if i should add something..i have receipt for everything the previous owner did, and they changed the oil often, but like i said switched back and forth from regular to synthetic oil...not sure if thats caused a problem or not....so my plan is to go to the dealer get a oil pan gasket, and do another oil change and pull the oil pan...the connecting rods will be exposed, and i can get a look and feel of how the bearings are..at least thats what im thinking...i cant afford to pay a dealer, and i do most work on all cars ive owned myself. including pulling and replacing motors.

[toddnos]

Mine used to make a tapping noise after long trips. Later it starting doing it after short trips. Took it to the dealership, and they replaced the motor under warranty.

i purchased this car used..it has no warranty. How many miles on your car when that happened?

[zozoka1212]

I would try some octane booster just in case you've got a crapy gas. Also maybe a good idea to get some oil treatment.

zozo

[toddnos]

I would try some octane booster just in case you've got a crapy gas. Also maybe a good idea to get some oil treatment.

zozo

its definately not a ping from bad gas..ive run a few tanks and it still does this..i noticed last weekend..any oil treatment advise? like lucas or what?

[toddnos]

anyone know about california lemon laws?This cars cd player broke the first day i had the car,the seat recline button stopped workingno i believe i have a rod knock

do i fall under any lemon law?

[toddnos]

anyone know about california lemon laws?This cars cd player broke the first day i had the car,the seat recline button stopped workingnow i believe i have a rod knock

do i fall under any lemon law?

[rn79870]

anyone know about california lemon laws?This cars cd player broke the first day i had the car,the seat recline button stopped workingno i believe i have a rod knock

do i fall under any lemon law?

I think the lemon law only applies to new vehicles. Did you buy it from a dealer or an individual? 65000 miles shouldn't be that much on a G engine.

[toddnos]

I think the lemon law only applies to new vehicles. Did you buy it from a dealer or an individual? 65000 miles shouldn't be that much on a G engine.

i bought it from a mitsubishi dealer..it shouldnt have this prblem already..i know this. Im super pissed this car has been giving me problems..all of them minor until this....i bypassed the broken cd player by gettin a tape adapter for my mp3 player, and im pretty sure i can figure out why the seat wont recline, but i really dont want to re bearing a v6 from out of the oil pan on a 65000 mile motor..it makes no sense.

[gwoods]

unless it really has 165,000 miles on it? Did you do carfax before you bought it? Try that if it doesn't match up you might be able to get the dealership to take it back.

Cars I own are usually pretty used up at about 60k miles for some reason. Maybe my evil twin was the previous owner?

[rn79870]

Did they give you ank kind of a warranty, or was it "as is?"

[toddnos]

Did they give you ank kind of a warranty, or was it "as is?"

30 day warranty unless it has some other certified used car warranty im not aware of....i will check carfax

[toddnos]

well, i added somw lucas oil stabalizer, but i still hear the slight knock. i plan to take it to the dealership as soon as i get a chance...anyone else have any good suggestions for diagnosing a rod knock?

[Jacko3]

Take the car to the dealership. What you state is unusual. I flog my car all the time, and not a single sound or whine comes from my baby.

[toddnos]

anyone know the cost of a VQ engine? i believe i can do the swap

[gwoods]

meh, as long as your doing a swap why not go all in? Buy a 07 G motor!

http://www.pcautorecyclers.com/ has a wrecked 07 Sedan! 1-800-772-8455

$2500 seems like the bottom end $5000 the top

http://car-part.com/cgi-bin/search.cgi

[toddnos]

thanks for the reply!i may start shopping around for a motor, in preperation for this one kicking the bucket...

[toddnos]

whats require to swap the o7 motor? ecu? anything else?

[gwoods]

That is a good question... I have not answers for you.

It looks like that wrecking yard has a complete car might be easier to rebuild it then swap the motor/transmission into your 03?

Heres a site you might find of interesthttp://www.ridesafely.com/minv...INITI

Heres an 06 coupe that I don't see any body damage too for $14k with only 15500 mileshttp://www.ridesafely.com/inve...us%3D

Someday very soon I will buy something like thishttp://www.ridesafely.com/inve...3DRAMAnd then my wife WILL kill me LOL
Modified by gwoods at 11:57 AM 3/4/2008

[smockers83]

i bought it from a mitsubishi dealer

That was your first mistake.

[gwoods]

That was your first mistake.