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what to watch out for in a '01-'02 Duramax?

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Old 10-18-2006, 10:12 AM
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Default what to watch out for in a '01-'02 Duramax?

ol' blue (see sig) has started giving me a few problems here lately, and it's about time to sell her and find something new(er).

I REALLY like the look of the '01-'02 chevy 2500hd's. like a needle in a hay stack, I'd like to find a RCLB 4x4, duramax/allison combo.

I heard problems with melting the heads, and various other electrical problems have come about.

what's the truth? and what should I look out for in finding one used?
Old 10-18-2006, 11:22 AM
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01-02 DMax's were some of the first year production trucks with that engine.. I would stay away as with all new things, the bugs were still being worked out..
Old 10-18-2006, 12:33 PM
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My 2002 has been flawless. The bugs were worked out.

The 01 trucks did have a few more problems than average.

The biggest thing to worry about on a used truck is the injectors. Make sure you get a VIN check to see the service history on any Duramax you are looking at buying used.
Old 10-25-2006, 06:23 PM
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My 01 has been completely trouble free. It only has 44,000 miles on it but trouble free so far.
Old 11-12-2006, 09:51 AM
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My 02 has over 112k miles and no problems on motor or original injectors. I keep thinking they only have so long left but so far so good. Fortunately the injectors are covered until 200k just in case.
Old 11-12-2006, 10:17 AM
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Originally Posted by LS1BirdDRG
My 02 has over 112k miles and no problems on motor or original injectors. I keep thinking they only have so long left but so far so good. Fortunately the injectors are covered until 200k just in case.
any luck on the dyno with the d-max?
kyle told me yesterday you was there.
Old 11-13-2006, 05:16 PM
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Nope, haven't dyno'd it yet. You still planning on buying a diesel when you get back?
Old 11-14-2006, 04:59 AM
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no, looking for a s-10. i found one but it's in orlando.
probably will be gone by the time i get back.
Old 11-16-2006, 06:10 PM
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The main problem with any Duramax 01-present is the injectors. there are two duramax versions, 8th vin # 1 & 2. 1 is the older style deisel and 2 is the new style. The vin 2 has only been out 2 to 3 years. Vin 1 has a bigger problem than vin 2 but I have seen a few of the new style getting replaced. Vin #2 is easier to replace. thats about the only real problems I know about.
Old 11-16-2006, 07:42 PM
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Originally Posted by jjauto
The main problem with any Duramax 01-present is the injectors. there are two duramax versions, 8th vin # 1 & 2. 1 is the older style deisel and 2 is the new style. The vin 2 has only been out 2 to 3 years. Vin 1 has a bigger problem than vin 2 but I have seen a few of the new style getting replaced. Vin #2 is easier to replace. thats about the only real problems I know about.
There are actually five versions of the 6.6L Duramax. The LB7, the LLY, the LBZ and the LMM. The fifth is actually a mid-year ringer that is a hybrid between the LLY and the LBZ often called unofficially an LBY.

The injector issues are mitigated by the extended warranty on the earlier models.
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