Q: I have a 2.3 L and switching to a 3.0 L. How do I know what new ECM and wiring harness to buy?

asked by on January 27, 2017

I'm getting a new engine and it's a 3.0 and my current one is broken down and is a 2.3z I'm told i need a new wiring harness and ECM but when i search i'm confused on how to search whether it's 3.0 ford escape ecm and harness or 2.3.

My car has 138000 miles.
My car has an automatic transmission.

Hi there. The best thing to do is go to the local parts store and have them get a harness for your vehicle with a 2.3L engine and a 3.0L engine. Then you can compare the different wiring harnesses to determine if you can use the same harness or if you need a new one. The harnesses will show you the connection ports to the computer, so you can determine if your computer will match. If you need further assistance with your engine swap, then seek out a professional, such as one from Your Mechanic, to help you.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

How do the rod bearings stay in place?

All the engine main and rod bearings along with the balance shaft bearings will have a small index on one end of the bearing. You should see a slot for the new bearing to line up and go in only...

92 Ford Ranger idles high

The first thing you'd want to do is try my video "finding engine vacuum leaks with a cigar." See if you can find a leak somewhere. It could be sucking air. If you can't find one, you want to check...

What does it mean if the Low Tire Pressure Light on the dash comes on?

Your car is equipped with a tire pressure monitoring system (TPMS). It checks that each of your tires has the right amount of air. If it notices a drop in pressure, it will turn on the Low Tire Pressure Light...

Related articles

Top 10 PZEV Cars for Eco-Friendly Drivers
Teddy Leung / Shutterstock.com The whole idea of a PZEV (that is, a partial zero-emissions vehicle), seems paradoxical. You’d think it’d have to either be zero-emissions or not in the category at all. But as contradictory as...
The Top 5 Selling Cars in Kansas in 2012
Kansas Kansas sees a varied climate with all four seasons, which means drivers in the area choose a variety of vehicles. In years past, some of the front-runners have included the Ford F-150, Buick and Toyota Camry. 2012’s top five...
The Best Used Cars to Buy If You're Towing a Boat
If If you’re towing a boat, the vehicle that you buy is largely going to depend on the size and weight of your boat plus trailer. Most cars, realistically, aren’t cut out for the job. We recommend a pickup truck...