Skip the auto shop - Our mechanics make house calls

Q: Performing an engine swap

asked by on

I have a 4.0L V6 engine in my 2001 Ford Explorer Sport. I was just wondering if I was able to exchange the motor in my 2001 Ford Explorer Sport for a 4.0L for a 1998 Ford Explorer 4x4. Are those engines compatible/interchangeable?

My car has 158384 miles.
My car has an automatic transmission.

This is probably a doable swap. To minimize possible conflicts, swap everything from the "donor" vehicle": engine (with wiring and ECM), transmission (and it’s TCM and wiring) between vehicles. The possible snag is the transmission - the ’01 came with a 5R55E transmission while the ’98 came with either the 5R55E or a 4R44E.

A problem here is likely putting the 4R44E behind a 5R55E controller if that’s your only option. Consult some of the Explorer owner forums to see if anyone else has made this swap. If you need any assistance, be sure to consult a professional mechanic, such as one from YourMechanic, who can make sure the vehicle is safe and in good working order.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
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

Q: My turn signals don't flash when I signal them.

Hello. Thank you for writing in. Yes the flasher is most likely your issue. It is luckily a very simple fix. The lack of clicking noise, but supply of power, tells us that the flasher is stuck in the on...

Q: Car heats up while idling.

You will need to have the cooling fan checked to see if it is coming on at low speed and then hight speed when you are idling. This can be due to the cooling system being low on coolant or...

Q: i am going out of town for two weeks what should i do about my car battery

Hello, thank you for writing in. Your vehicle should be fine for 2 weeks. If you think there is going to be an issue, you can disconnect the battery cables so the vehicle cannot drain it. This may reset some...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.