Q: Engine was swapped. I need to know how to tell if they put 1.8 or 2.0 back in?

asked by on November 07, 2016

Motor was swapped I need to know how to tell if the put 1.8 or 2.0 back in?

Each of those engine sizes have unique casting numbers embossed on the head, block, etc.

  • The casting numbers for the 1.8L are Block Cast # 5M0; In-Line Head Cast # 5M0; Cam Cast # 5M0-5M0 or 4M5-4M5; and Crankshaft Cast # 4M.

  • For the 2.0L two different castings were produced for the block: Block Cast #2J2 versus #4M8; In-Line Head Cast #2J2; Intake Manifold Surface Straight Casting #2j2.

If you look for these casting numbers, you will be able to determine which engine was installed. Another possibility is if you have the VIN number of the vehicle from which the engine was taken that VIN number will be uniquely associated with one of the two engines. If you need further assistance, feel free to have one of our mobile technicians inspect the vehicle and confirm your engine type.

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


Experienced Mechanic?

Earn up to $70/hr

What others are asking

How do I close the hood?
After opening the hood and doing whatever you need to do, you’ll need to close the hood. To do this, disconnect the hood stand from the hood, and place it back in the hood stand latch. Then, lower the hood...
Engine bogs down
The ignition timing (https://www.yourmechanic.com/article/what-does-ignition-timing-mean) may have jumped, causing the timing to be off. The ignition timing will need to be checked to see if the camshaft timing jumped. If the timing is not the cause, then check to see if...
The car stalls at low RPMs and during idling
A sticking or stuck idle air control valve can cause this condition. The valve needs to be removed and inspected for excessive carbon buildup. The valve could be cleaned and then then re-installed to see if proper operation can be...
Hard acceleration and hard braking when stop
You may be having a normal condition. When you accelerate hard, you are dumping a large amount of fuel into the engine and then stopping quick and shutting the throttle. You still have all that fuel in the engine and...
Hi, I got into a car accident with my bmw e36 and nothing but a dent in the middle of the grilles. Car would start but wouldn't mo
Hello. From what you describe it sounds as if your vehicle may be experiencing more than one issue. Brakes not functioning are usually caused by serious issues with the brake system. If they are not functioning at all then that...
Why won't my car start up?
Hello, thank you for writing in. If the vehicle is cranking over, as in the starter is turning over the eninge (but it fails to start) then you are looking at a fuel or spark issue. If you are testing...
I got a quote for $900+ to replace two thermostats, 2 hoses, and flush the radiator. Is there 2 thermostats? Is this kosher?
Hi there. Yes on the 2009 Jeep Patriot there are two thermostats. There is a thermostat for the main engine cooling system and a thermostat for the cylinder head cooling system. If you need assistance with changing out the thermostats,...
Car Stalling randomly
This engine does not have a fuel pump module so the most common cause is the fuel pump in the fuel tank is going bad. When it heats up it is seizing and stalling the engine. Replace pump and filter....

Related articles

The Best Used Cars to Buy If You're an Archeologist
If If you are an archaeologist, you need a vehicle that will take you off the beaten path. After all, that’s where you spend a good deal of your time. And that means that you will need, ideally, an SUV...
The Best Used Cars to Buy If You're a Mobile Housekeeper
If If you are a mobile housekeeper, chances are that you are looking for a small, reliable used vehicle that offers good gas mileage and enough space to store your supplies. With that in mind, we present to you the...
How to Rebuild a Car Engine
Whether Whether it is to breathe new life into a commuter or work vehicle, or for hobby in a classic car, there are many cases in which rebuilding an engine can be a great alternative to replacing one. Generally speaking,...