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If you have a bad ECM then your van will simply not run right. It may lose power, stall out, be sluggish, and running poorly. If you think you ECM is bad, simply go to the junk yard and get one off of an 87-1995 astro, but make sure you are taking off of your type of motor.

To fing the ECM go to the passenger side of the car and above the wheel you will see a cover, take the cover of and take the two small 7mm bolts off of the plastic that hold ECM in tight. Gently take out ECM disconnect wires and install new one.

You must drive the van around for a little bit in order for it to set. If problem is fixed them you are good to go, if not then you need to further diagnose it. It could be somethng with the distributor it's self or the injectors...check the wiring and insure there is no kinks and everything is connected proprerly.

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Q: How do you know ecm is going bad in Chevy astro van?
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