2.4L GM Engines - LE9 vs LE8/LEA

Jordan Technician Kentucky Posted   Latest   Edited  
Case Study
Driveability
2009 Chevrolet HHR LT 2.4L (V LE9) 4-spd (4T45-E) — 3GNCA53V19S643422
Stumbles On Cold Start-Up

Any GM gurus in the group who know what the differences are between a LE9 and a LE8/LEA 2.4L is? Had an issue on a 2009 Chevy HHR that is suppose to have an LE9 in it, found out today after much pain and anguish that some has replaced the motor with an LE8 or LEA (not sure where to look on the engine to know for sure). The intake camshaft and VVT phaser are definitely different. Wondering what the other differences might be. Planning on doing some more research tomorrow. Would like to be able to switch the camshaft and fix it possibly… 🤷🏻‍♂️

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Danny Technician
Wisconsin
Danny
 

I think the LE8 is a 2.2 liter

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Michael Diagnostician
Indiana
Michael
 

if it has an LE8 in vehicle and it is supposed to have a LEA it has the wrong engine in it all together. The LEA is a 2.4 and the LE8 is a 2.2

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John Owner
South Carolina
John
 

Most likely should just be the intake cam/phaser and possibly fuel injectors. Short blocks are all the same. I have also seen the wrong heads installed. For example fed emissions on a cal emissions vehicle.

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William Technician
Illinois
William
   

The LE8 is an E85 compatible 2.2L The LE5 is a larger 2.4L The LE9 is an E85 compatible version of the 2.4L The LAF is a direct injected 2.4L The LEA is an E85 compatible direct injected 2.4L

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Agree
Interesting
Edwin Owner/Technician
Pennsylvania
Edwin
 

I have a 2014 terrain with Lea and I bought with bent valves. Rebuilt it new pistons rings high pressure pump chain kit pahsers and solenoids had head repaired at machine shop. All ac Delco parts except pistons and rings. Drove 4k problem free miles and it spun a rod bearing. Hpfp leaked fuel into crankcase. I was back to 2500 for used engine or find a way to fixit​.​II bought a le5…

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Paul Mechanic
Illinois
Paul
 

Trying to understand exactly what your question is? Given the responses thus far, it's sounds like you are trying to identify which engine other than what you think should go in there is. My questions to you are: did you pull engine and after ordering replacement engine per application, discover they are not the same? Why are you replacing engine? If engine you removed was working fine until it…

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Jordan Technician
Kentucky
Jordan
 

Vehicle came in with no codes and a stumbling problem on cold start up, would sometimes die. Timing checked good with a scope, throttle body seemed to be good, eScan caught that it has low vacuum when the problem occurs and it only occurs when the computer tried to operate the VVT. The short version is I took the timing cover off to inspect for damaged, worn components and realized that it has…

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Michael Technician
Indiana
Michael
 

I would look at the casting number on the cylinder head and use it to determine exact engine. Some 2.4 heads with the same casting number will use different intake cams.

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Marlin Technician
Oregon
Marlin
 

Attached is the chart.

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Jordan Technician
Kentucky
Jordan
 

Awesome! Thank you.

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Jordan Technician
Kentucky
Jordan
 

Update on this car, it is now fixed with a new intake camshaft and phaser. The original concern was that the vehicle would stumble on a cold start-up. Seemed to be sensitive to between 50-120 degrees F. It would happen once while the VVT was advancing the intake camshaft On start-up, then it wouldn’t occur again until I restarted. CKP/CMP patterned looked perfect and there were no codes. My…

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Paul Mechanic
Illinois
Paul
 

Nice work and good follow through. I know a lot of people (not any regulars on this site or the other) that wouldn't have even bothered getting to root cause once it was discovered incorrect RPO. Nice to know it can be readily corrected in the event wrong one is put in. My lkq contact always asks for rpo though because he has gone through hell on his first few sales of these very engines. Again…

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Thanks