Interference engine Does Toyota Corolla 2003 model ( Petrol engine) have an interference engine or not ?

do have to? there is never any answer to that, nu-diagosed.

no engine told. at all. just 4 banger
no VIN told and 8th digit is engine code.! post VIN .
crank sensor can be in 3+ places, front crank ,mid crank and rear.
yes some car with crank sensor behind fly wheel the tone slots are cut into the flywheel or the (flex plate) so yah tricky on some engines. (just so you know ropes)

if you google correct engine name + crank shaft.

you will see the tone wheel on the crank and bingo location
or read the service manual to learn this fast.

https://eautorepair.net/Marketing/Default.asp

I4 means zero to me
see why?? the wiki shows this generation used all 6 engines
2012 up.

Petrol:
2.0 L 4J11 I4
2.4 L 4B12 I4[29]
2.4 L 4J12 I4[30]
3.0 L 6B31 V6[31]<<< NO
Petrol PHEV:
2.0 L 4B11 I4
2.4 L 4B12 I4
Diesel:
2.3 L 4N14 I4 turbo[32]

if the engine has CAM belt it snapped, and both sensors fail but both sensor are good, and fails compression tests or worse
head poppet valves bent./
my guess someone (kids) put you up to this guess.
or did not scan he PCM
or did not inspect that cam belt?
Interference engines them. list

1. 1.5L Interference
2. 1.6L DOHC Interference
3. 1.6L SOHC Interference
4. 1.8L Interference
5. 2.0L DOHC Interference
6. 2.0L SOHC Interference
7. 2.3L Diesel Interference
8. 2.4L DOHC Interference
9. 2.4L SOHC Interference
10. 3.0L DOHC Interference
11. 3.0L SOHC 12 Valve Engine Non-Interference
12. 3.0L SOHC 24 Valve Engine Interference
13. 3.5L DOHC Interference
14. 3.5L SOHC Interference
15. 3.8L Interference

I flat refuse to do all of those with belt/chain, told.NO!

identified as free wheeling engine ( non interference )
Good practice dictates that the compression is checked as the description does not preclude valve damage

most modern engines are interference designed. keeps the engine profile smaller for fitment in the engine bay. I have successfully straightened valves on a 2.7 V6 honda engine that snapped the cambelt. Just revved the heck out of it once the new belt was on. All ok afterwards. Did you shut down as soon as the belt jumped the cog ?

if it has a chain it is not recorded as an interference fit engine . IF it has a belt then it is an interference engine

the engine has been identified as a "free wheeling" engine in which the possibility of valve - to piston damage in the event of timing belt breakage may be minimal or very unlikely. However , a precautionary compression check of all cylinders should be performed. So -- no it is not an interference engine.

The 1.8 engine is not an interference engine.

The 1.6 liter and 1.8 liter - 4 cylinder engines in a 1994 Toyota Corolla are :

non - interference engines ( according to the Gates website , they make timing belts

etc. )


Read more: http://wiki.answers.com/Q/Interference_or_non-interference_1994_toyota_corolla#ixzz18sCsYgeh

Non -Interference means your valves would not have hit the pistons so no damage should have been done to your engine.

Your 2003 corolla has a timming chain with no maintenance interval.
It is a good idea to replace your serpentene belt if it has not been replaced. Your motor is an interferance motor.

This engine is not an interference fit engine. The timing belt can break and not cause damage to the motor. However you never know where or when it will break and the car will not move. I believe Toyota recommends changing it every 60K.

You can probably get most of your parts online easier than at local parts stores.

http://www.toyotapartscheap.com/

interference engine?Have no idea what you are asking?Interceptor?