Thread: ECM replacement
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Old 03-10-2009, 10:33 PM
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mike2004tct mike2004tct is offline
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Re: ECM replacement

Quote:
Originally Posted by duke350 View Post
Changing the ecm on that car should take less then a half hour. Its the box on the inner fender behind the battery. It looks about like this http://partimages2.genpt.com/partimages/808744.jpg. You might have to get it programmed to your car before it will work though. Looks like its about $170 at napa, and they list 2 diff ones. You can get a replacement at a junkyard for less, and it may not require programming, but you never know what you are getting for junkyard parts.
I've used Napa twice for the ECM on my truck.

About $250.00 with programming. (I got a discount on the unit, plus $125.00 to flash the program; Napa did the whole set-up)

If you buy a salvage yard unit, you'd better get it from the exact same vehicle as yours, otherwise certain options may not work.
These ECMs are used on a variety of vehicles, including Tahoes, S10s, asnd so on (with differnet 3nignes like 4 cyl, 6 cyl, and 8 cylinders)

If you "do-it-yourself", do not forget to remove the knock sensor off the bottom of the ECM. Remanufactured units don't come with it.
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