can 13, 14, and 15 LFX engines be used in a 2012? - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

cliffdog89 · 11-28-2017, 03:38 PM

Simple question, are the 13, 14, and 15 LFX engines backward compatible with a 2012 camaro? I can't find a firm answer on this anywhere.

ChibiBlackSheep · 11-28-2017, 03:57 PM

Yes, nothing should have changed from 2012-2015 with the LFX.

1Coopgt · 11-28-2017, 05:45 PM

Yup

alice · 11-28-2017, 06:28 PM

Absolutely

cliffdog89 · 11-29-2017, 09:09 AM

Quote:

Originally Posted by ChibiBlackSheep

Yes, nothing should have changed from 2012-2015 with the LFX.

Quote:

Originally Posted by 1Coopgt

Yup

Quote:

Originally Posted by alice

Absolutely

I hope this is the case but they have different part numbers. I drilled down and the 13-15 have a different valve spring part number and valve cover part number from the 12

ChibiBlackSheep · 11-29-2017, 09:11 AM

Quote:

Originally Posted by cliffdog89

I hope this is the case but they have different part numbers. I drilled down and the 13-15 have a different valve spring part number and valve cover part number from the 12

That wouldn't make the engine non-compatible with a 2012 though. That could have just been a redesign, or a new manufacturer. But that's not an electronic part, or part that would prevent connecting the engine to an existing wiring harness.

What are you trying to accomplish? You made it just sound like you wanted to swap the engine out.

cliffdog89 · 11-29-2017, 09:18 AM

Quote:

Originally Posted by ChibiBlackSheep

That wouldn't make the engine non-compatible with a 2012 though. That could have just been a redesign, or a new manufacturer. But that's not an electronic part, or part that would prevent connecting the engine to an existing wiring harness.

What are you trying to accomplish? You made it just sound like you wanted to swap the engine out.

My 2012 LFX engine seized (still diagnosing the cause). I have it mated to the manual trans. I need to swap out to a used LFX. When I am looking up motors the used ones are specifying years 13-14 or 15, not all four (12-15) years. I am trying to determine why the used sites would be breaking it apart by the years. I have found that the LFX with the automatic trans is not compatible for all four years as something was changed in how it communicated with the transmission. Luckily I have the manual transmission and I believe this works with all four years.

I don't want to have a problem with the ECU communicating with the engine.

IneedAZ · 11-29-2017, 01:13 PM

I did that swap in my 2012 last year...no issues

DvKillar · 11-29-2017, 03:52 PM

why in the hell are your LFX's blowing up? do I need to be concerned??

cliffdog89 · 11-29-2017, 05:28 PM

Quote:

Originally Posted by IneedAZ

I did that swap in my 2012 last year...no issues

what year LFX motor did you swap too? Also, why did yours go bad?

cliffdog89 · 11-29-2017, 05:30 PM

Quote:

Originally Posted by DvKillar

why in the hell are your LFX's blowing up? do I need to be concerned??

I am still at a loss as to what happened to mine only 80K on the clock and I keep it up to date on all maintenance - The oil was low but not enough to cause failure. I am still investigating. of course I just paid it off and it is out of warranty

DSX_Camaro · 11-29-2017, 08:04 PM

What happens when you try to start it? I know I damaged my engine a few years ago when I mis-shifted coming off the highway (was going to engine brake and caught 2nd instead of 4th and spun the engine way high, think I spun a few rod bearings, also managed to have it replaced under warranty) but the only reason it wouldn't actually start was because my battery died. Replaced my battery and it fired right up but would stall occasionally (and knocked, etc).

I saw your other post but only briefly looked at it. Besides the engine codes you listed, what symptoms did/do you have?

cliffdog89 · 11-30-2017, 07:26 AM

Quote:

Originally Posted by DSX_Camaro

What happens when you try to start it? I know I damaged my engine a few years ago when I mis-shifted coming off the highway (was going to engine brake and caught 2nd instead of 4th and spun the engine way high, think I spun a few rod bearings, also managed to have it replaced under warranty) but the only reason it wouldn't actually start was because my battery died. Replaced my battery and it fired right up but would stall occasionally (and knocked, etc).

I saw your other post but only briefly looked at it. Besides the engine codes you listed, what symptoms did/do you have?

All the lights on the car still work so it isn't the battery (the battery is old but the electronics are all working no problem). So there was the knocking sound that I thought was the exhaust leak. I only heard it at certain RPMs. the car was running fine tho - felt slightly underpowered but no shaking for anything out of the normal. After a hard pull, the CELL flashed for about 4 -5 seconds indicating a misfire but then it went away. about 20 seconds I was slowing down and pulling into a parking lot and then it quietly and unceremoniously would shut off. I didn't even realize it had at first because it happened so gently. The engine would not turn over at that point. The starter tries but nothing happens. After trying to bump start it unsuccessfully I checked the oil and none was showing on the dipstick which was very strange because the car has zero leaks and has never burnt more than a quart of oil. I drained the oil a few days later after getting it towed back and there were still 3 quarts in it and I am guessing a bit more because it was really cold when I drained it and it was coming out very slowly. There were small metal flakes in the oil when I ran a magnet through it but it wasn't anything large like I would have expected. I never got a low oil engine warning light at any point.

cliffdog89 · 11-30-2017, 07:29 AM

Quote:

Originally Posted by DSX_Camaro

What happens when you try to start it? I know I damaged my engine a few years ago when I mis-shifted coming off the highway (was going to engine brake and caught 2nd instead of 4th and spun the engine way high, think I spun a few rod bearings, also managed to have it replaced under warranty) but the only reason it wouldn't actually start was because my battery died. Replaced my battery and it fired right up but would stall occasionally (and knocked, etc).

I saw your other post but only briefly looked at it. Besides the engine codes you listed, what symptoms did/do you have?

The codes I pulled after the car died are as follows:

P0325 Knock Sensor 1 circuit bank 1 (Pending)
P0300 Multiple Random Misfire Detected (Pending)
P2270 Oxygen Sensor Signal Stuck Lean Bank 1 Sensor 2 (Confirmed)
P2097 Post Catalyst Fuel Trim System Too Rich Bank 1 (Confirmed)

I figured I would put them here too

11-28-2017, 03:38 PM	#1
cliffdog89 Drives: 2LT/RS M6 '12 Camaro Join Date: Aug 2012 Location: New Jersey Posts: 412 View My Garage	can 13, 14, and 15 LFX engines be used in a 2012? Simple question, are the 13, 14, and 15 LFX engines backward compatible with a 2012 camaro? I can't find a firm answer on this anywhere. __________________

11-28-2017, 03:57 PM	#2
ChibiBlackSheep Drives: 2012 2SS/RS, 1968 SS Join Date: Feb 2012 Location: Southeast, PA Posts: 2,087	Yes, nothing should have changed from 2012-2015 with the LFX. __________________ LS3 Crate Engine Swap \| CSP Custom Cam 232/240 .615/.615 113 +3 \| Stainless Power LT Headers \| Z28 Intake \| Borla S-Type Exhaust \| FTI Triple-Disc Billet 3200 Stall 2012 Camaro 2SS/RS \| 1968 Camaro SS \| 2020 Cadillac CT5 Premium Luxury \| 2021 Spark LS

11-28-2017, 05:45 PM	#3
1Coopgt Drives: All Black 2012 1LS Join Date: Feb 2015 Location: Rochester,NY Posts: 2,042 View My Garage	Yup __________________ Mods, K&N CAI ,VTC , GM Perf Axleback Exhaust, Elite Eng CC and CSS, GM Strut Tower Brace,Carbon Fiber Anvil Spoiler,ASC T5 Splitter,Gen5diy Foglight kit.

11-29-2017, 01:13 PM	#8
IneedAZ Drives: 2017 ZL1 A10 & 2021 BMW M340i x Dr Join Date: Mar 2009 Location: Tampa Posts: 5,110 View My Garage	I did that swap in my 2012 last year...no issues __________________ Sold 2012 2LT RS 12.3@112 old setup Sold 1967 Camaro Pro Street. Ran 10's mild BB on NOS. 2017 HyperBlue ZL1 A10 Born 3/17/17Delivered 4/08/17 2020 Build: Mag2650, BTR Stage2, NW103, BG, 14% lower, 90mm upper, ARH 2" Long system w/no cats, SW Legend mufflers. 807hp/762tq on 93 gas and 848hp/792tq on e47 Sold 2018 (Go Mango) Dodge Charger Daytona 392 Daily Driver Daily Driver 2021 BMW M340i Xdrive

11-29-2017, 08:04 PM	#12
DSX_Camaro Drives: 2013 SW 2LT/RS LFX/AY6 Join Date: Feb 2013 Location: Orlando, FL Posts: 1,741	What happens when you try to start it? I know I damaged my engine a few years ago when I mis-shifted coming off the highway (was going to engine brake and caught 2nd instead of 4th and spun the engine way high, think I spun a few rod bearings, also managed to have it replaced under warranty) but the only reason it wouldn't actually start was because my battery died. Replaced my battery and it fired right up but would stall occasionally (and knocked, etc). I saw your other post but only briefly looked at it. Besides the engine codes you listed, what symptoms did/do you have? __________________ K&N CAI, 1LE Strut Tower Brace, Elite Engineering Catch Can and Clean Side Separator, Apex Scoop w/ Washer Relocation Kit, CTS Front Calipers and Rotors, JacFab Ported Intake Manifold, JacFab Intake Manifold Spacer, 80mm Overkill Throttle Body, SS Brake Lines, Ideal Garage Master Cylinder, Monster Twin Disc Clutch, NPP Retrofit w/ Magnaflow Resonated X, ARH Catless Downpipes, JRE Built 3.45 Diff, 1LE Axles, 1LE Hubs, Overkill Tuned, BMR Anti Wheel-hop Kit Stage I, ACS TL1 Hood Insert, ZL1 Spoiler

11-28-2017, 06:28 PM	#4
alice Drives: 2010 camaro limited edition turbo Join Date: Mar 2014 Location: saint petersburg, florida Posts: 499 View My Garage	Absolutely

11-29-2017, 03:52 PM	#9
DvKillar Drives: 2015 Chevy Camaro 2LS Join Date: May 2017 Location: MWC, OK Posts: 815	why in the hell are your LFX's blowing up? do I need to be concerned??