My 98 blazer has an EGR vavle on the front of the intake but my motor has taken a crap! So anyway I found a 02 motor that looks great just does no have an EGR vavle like the motor thats already in the truck, can I use it or not what would it affect anything or would it even work does anyone know

 

Please If their is any information about this at all it would be greatly apreciated? All I need to know is if the EGR vavle is nessary or is it just one of those keepin it green things if you know whatI meen

 

From what I understand you will have to swap all of your 98 intake and exhaust to the 02 motor. You might also have to tap threads for your knock sensor but I'm not sure. I'm swapping an 02 motor into my 96 in the next few weeks- I'll let you know how it goes...

 

You should be good to go. Swap LOWER intake manifold, drill/tap knock sensor, and swap sensors from old motor to new motor

You will have to swap exhaust manifolds, as well. Other than that, should be golden



Aaron

 

What will it hurt by leaving the 02 intake manifold on the motor I mean your SES light will always be on but what else could it hurt? Im just terrably curiuos I mean the exhaust just will not mount up right thats why you have to change them right but why the intake manifold.

 

your exhaust has the egr tube that runs from driver side manifold to lower intake... without the matching lower intake you'll have a heck of a hole in your exhaust manifold...

 

Thanks for that information Ill start looking for a plug for that little puppy right now man this is the greatest web site ever. and anyway I was going to see if the exhaust manifolds on the new motor was close enuff to use anyways at least the one on that side because the one on there is not in the greatest shape but will see again thanks.,