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-   Mods - Engine/Exhaust (https://www.chevyhhr.net/forums/mods-engine-exhaust-56/)
-   -   best choice of engine swap for 2006 HHR (https://www.chevyhhr.net/forums/mods-engine-exhaust-56/best-choice-engine-swap-2006-hhr-65905/)

Oldblue Jan 6, 2023 10:14 AM

Correct camshafts are different, so the sensors from the 2006 won’t see what the ECM is looking for.
the_shmoo’s 2006 2.4 doesn’t have the oil cooler as I recall.

RJ_RS_SS_350 Jan 6, 2023 10:30 AM

If the current engine has the oil cooler, and the replacement engine doesn't, you'd have to figure out what to do with the coolant hoses.

Oldblue Jan 6, 2023 12:01 PM

Eliminate the smaller hoses and replace the larger hose with one without the tee and replace the thermostat housing with one from a 2007 model year

arizonalone Jan 6, 2023 03:01 PM

You guys are great!

Oldblue Jan 6, 2023 03:03 PM

Wish I could give you a hand swapping engines, a nice warm couple of days in Arizona, better then the 34 degrees here!

arizonalone Jan 6, 2023 03:07 PM

Thank you old blue! Come on down, you would be very welcome!

donbrew Jan 6, 2023 03:51 PM

Coolant hoses are attached to the engine.

Oldblue Jan 6, 2023 04:11 PM

Yes, and tee off to the oil cooler from the thermostat housing

https://cimg5.ibsrv.net/gimg/www.che...071b07d63.jpeg
This hose from the thermostat housing is eliminated, the housing is replaced with a 2007
https://cimg6.ibsrv.net/gimg/www.che...bf8f8133b.jpeg
This tee is eliminated and the rad hose from a 2007 is used to replace this mess

Oldblue Jan 6, 2023 04:19 PM

https://cimg7.ibsrv.net/gimg/www.che...8e6d7aed2.jpeg
This is the oil cooler style thermostat housing, this one I’d off my 2011 2.4 l , the black rubber cap can crack and leak coolant
https://cimg8.ibsrv.net/gimg/www.che...27fee54f6.jpeg
This is the housing from a 2007 , note there is no provision for a heat hose to go to an oil cooler or get capped off and potentially leak coolant

arizonalone Jan 6, 2023 06:55 PM

:) ! looks like the way to go yo me!


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