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Where is the ecm on a 89 Chevy s10 blazer 4.3?

The ECM (Engine Control Module) on a 1989 Chevy S10 Blazer with a 4.3L engine is typically located under the hood, on the passenger side firewall.

However, the exact location might vary slightly depending on the specific trim level and options.

Here are some tips to help you find it:

1. Look for a black rectangular box with wiring harnesses connected to it. The ECM is usually encased in a protective housing.

2. Check near the fuse box. The ECM is often located near the fuse box on the firewall.

3. Consult your owner's manual or repair manual. This will provide specific information about the ECM location for your vehicle.

If you're not comfortable working with electrical components, it's always best to consult a qualified mechanic for assistance.

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