verification of parts to the engine listed by service dept. on 2002 GMC Yukon XL Denali

If the invoice provided by a service department in a dealership describes an engine not accurate to my vehicle's true engine; would that mean that the parts listed were for an engine not designed for my car and therefore would possibly attribute to problems that excessively occurred? For example; the engine lists for this car, on the invoice: "DLR:66692 (not sure what that is...) ENG: 2.5_ Liter_ V6, _MFI, DOHC". When I know for a fact my engine is not a 2.5 but a 6.0 engine, and the vehicle is not a V6 but really a V8 AWD! Further, it was not a multipoint fuel injection but a single fuel injection, and unsure but think DOHC for dual overhead compartment; well pretty sure don't know what that is, but that going to affect the parts they will get for the car? Because a lot of the parts they matched were not able to match with what model numbers were accurate for the vehicle's model parts listed on ALLDATA.

by in Yuma, AZ on May 18, 2009
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1 answer
ANSWER by , May 18, 2009
The first thing I would do is take the VIN to the dealer or manufacturer and get the right print out for your make of vechicle