Skip the auto shop - Our mechanics make house calls

Q: Motor swap

asked by on

Can i put a 1999 jeep cherokee 4.0 motor in my 2000 jeep cherokee . I notice my 4.0 has a coil pack and the 1999 motor i want to put in it doesnt . Does that make a difference ?

My car has 203000 miles.
My car has an automatic transmission.

A: Yes, it will make a difference but it's...

Yes, it will make a difference but it's possible the older engine has a different type of ignition system and all of the components from the newer engine will need to be transferred to the older one.

There may be issues with the camshaft or crankshaft sensor locations on the two engines, so take note of that. Also, you should swap the engine harness and anything else that looks different. The best way to go about this is to set the engines next to each other, side by side, and swap all of the components that appear different.

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・Save up to 30%

Get a quote

What others are asking

Q: Front axle thunks when turning

That does sound like the problem. The u-joints spin with the wheel all the time on your Jeep. Do not delay the repair for too long. If the u-joint fails, it can cause more damage and possibly lock the wheel,...

Q: WHAT WOULD YOU CHARGE TO FIX A THERMOSTAT ON A 2001 JEEP GRAND CHEROKEE

A thermostat that is stuck closed will cause the engine to overheat at idle and while driving. If you overheat only at idle then you most likely have a fan clutch that is not locking up or you radiator air...

Q: Sluggish when starting from braking position and when going uphill

Hey there. If your truck is in limp in mode, the PCM (powertrain control module) believes there is something wrong and it is attempting to protect itself. The place to start is connecting a scanner to your truck to read...

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.