From NC

[MattHamby]

I have a question about the engine - I have found several 08 engines, I know several of you have installed 07 engines in your 04-05 Aveos, so you may be able to help me out - What is the L91 option? Is this something that would prevent me from using it in my 04? The VIN is the same as mine (8th digit is 6) - what is the difference in the engine that has other letters/ numbers? Is this maybe the difference that was in the 07 engine that was found in Doax's install (in quote bellow)?

04-25-2011, 08:08 AM#222Daox

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Join Date Jan 2007Location WisconsinPosts 1,291Garage

• Rescued Aveo - 2005 Chevrolet Aveo

I ended up capping the breather hole. It apparently used to go to a metal pipe that mounted on the block. The 07 block didn't have holes in place to mount it. I'm guessing it was a crankcase breather tube.

[MattHamby]

no takers on this question?

[NYChevoo]

First of all Welcome to the forums Matt! Truly love the quote "first barnfind Aveo!" thats a classic. If anyone you'd want to speak to it would be Daox. PM him directly. He is the guru of Aveo rescues!

[MattHamby]

Thanks, I will do that!

I am naming the car Barney, just because of that quote!

[Daox]

I figured I'd post here in addition to PMing with Matt.

I'm not aware of any L91 option. If I had to guess I'd say the 07 and 08 are very near identical if they aren't exactly the same. There are differences between the 04 engine I had and the 07 engine that I put into my car. The changes were minor and didn't require any real changes to make things work. All those changes should be outlined in my thread.

http://www.aveoforum.com/forum/showt...being-repaired

[MattHamby]

OK, I did a little research, this is what I found for the 2008, but I have not found anything for the 2004

Note:
Engine Code:
L91: ENGINE,1.6L,MFI,DOHC 1.6-6(L91)
L95: ENGINE GAS, 4 CYL, 1.4L, MFI, DOHC 1.4-7(L95)
LV8: ENGINE GAS, 4 CYL, 1.5L, MFI, SOHC, GMDAT 1.5-Y(LV

Transmission Code:
ML4: TRANSMISSION AUTO 4 SPD, THM 4L30-E, CONV CLUTCH 4-SPD AUTO TRANS(ML4)
MLM: TRANSMISSION, MAN 5 SPD, D16 SW/R 5-SPD M/TRANS(MLM)
MLQ: TRANSMISSION, AUTO 4 SPD, AISIN, AW 80/81-40 4-SPD AUTO TRANS(MLQ)

Model Code:
1TD48: AVEO 4 DR HATCHBACK
1TD69: AVEO 4 DR NOTCHBACK
1TJ48: AVEO LS 4 DR HATCHBACK
1TJ69: AVEO LS 4 DR NOTCHBACK
1TK48: AVEO LT 4 DR HATCHBACK
1TK69: AVEO LT 4 DR NOTCHBACK

There were more codes so I'll dig a little deeper!

[MattHamby]

Well, we are still trying to get something worked out on "Barnie" - However, I have purchased a 2004 Aveo that has 102K miles on it for $2650, the paint is faded, but she seems to run very nicely, I don't have pics yet, I am having my friend replace the timing beld and the valve cover gasket (oil leak through the current one), oil change and auto-trans flush - just to start her off right! I hope I get a few good years out of her! I still plan on getting the blue one, I will fix it for myself and "give" the yellow one to my oldest daughter. I will hope to have the title and everything squared away on Monday - I have it in my hands, just have to get these few items done to it and wait until next business day to be able to start driving her!

[MattHamby]

Well, We are still trying to get the title mess straight on the blue one, however, I came accross a yellow 2004 Aveo that has 102K miles that I picked up for $2650! I am pretty happy with it, we replaced the timing belt and a few other things it needed or we didn't know when the last time it was done and it is up and running great (so far)! I need the 2 rear head rests, e-brake boot (interior cloth/ fake leather) and the front passenger side cloth insert for the door panel. I am going to take a trip to the treasure yard Saturday to see what I can find! Anyway, here are some pictures!

[NYChevoo]

Good juob Matt! I'd take the LT Aluminum rims off the blue one and put them on the yellow one. I always wanted those rims when I had my Aveo.