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Building The Cruzen2.0

41398 Views 213 Replies 17 Participants Last post by  Cruze CTRL
My 2012 ECO MT has been named "Cruzen" so this is the build of "Cruzen2.0"
My ECO is worth too much to do all these modifications to it.
I WILL build the first(?) 2.0t 6MT CRUZE!

2014 Buick Verano Premium, 2.0T, 6MT, 17k miles, salvage- runs/drives, $3k (PURCHASED)
2012 Chevy Cruze LS, 1.8L, 6MT, 195k miles, bad clutch, $3k (PENDING AS OF 5/30/18)

The Buick was delivered today (5/30/18) and this it the first bit of prep so I could find out what replacement parts I needed to buy.

As Delivered
Land vehicle Vehicle Car Mid-size car Compact car

After removal of front crash bar and upper rad support (and hood)
Land vehicle Vehicle Car Auto part Automotive exterior

Messed up rads. No leaks tho, AC still blows cold! Only part not usable or the same with the recipient Cruze is the main engine radiator
Radiator Vehicle Automotive exterior Bumper Auto part

Vehicle Auto part Tire Automotive tire Car

As of now the wheels haven't fallen off the project, but they did have to come off the car
Land vehicle Vehicle Car Collision Mid-size car

Tire Alloy wheel Spoke Wheel Rim

Alloy wheel Tire Rim Wheel Spoke

The wheels I will be using from now on (including the final look) will be 17x7 5x115 from a 2012 Equinox with 225/50/r16 tires to look stock and be the same size as the factory Cruze ones while fitting the Buick hubs and not saying "BUICK" on them.

Something like this
Alloy wheel Rim Wheel Spoke Auto part

Updates will come as I make progress
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It's done!

Kidding, just the engine bay is done. The interior is still all over the floor, and there's a lot of fiddly stuff to sort out such as wiring the lights and decklid as they are different between the 2 cars. Hope to pick up those parts today, then it will technically be legal to drive.... Once the title gets here that is. CANT WAIT TO HEAR THIS THING RUN AGAIN!


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Decklid (assembly), headlights, taillights, and rh mirror.


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No pictures of todays progress, mainly because it almost looks like I havent done anything to it. Spent most of the time working on it today modifying the wire harnesses to make up for the "small" diffrences between the cars. Mostly that involved relocating some of the connections behind the dash and figuring out how to make the lights actually plug in to the verano harness. There are quite a few "minor" differences between the "sister" cars, mostly where and how things are wired, hooked up, attached, mounted, or shaped.

TLDR; Cars not identical, problems ensue, fix problem, scream, fix next problem, car should drive by end of week. (fingers crossed)
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D*mn near every possible warning light and error message is on right now, and the exhaust isn't connected, but all these things shall be taken care of in time.
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Moved under its own power, still needs driver headlight and rear lights wired, and the brakes need re-bleeding, and then theres the problem of at least 2 broken fittings for the vacuum lines to the power brakes.... But Movement!
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thebac, I'm 22 and my job doesnt really need me full time in the summer.

blasirl, I plan to be there

EDIT: The other reason for the expediency of this build is my own impatience as well as my experience with most of the activities involved in this mess I'm calling a car
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An update, I spent most of today working on the door wiring, all of it is now installed and some of it works! Not sure what problems are from just my own stupidity and what is just not working at all.

As of right now all four doors on the cruze have modified verano harnesses and the following is the status of their functionality.
Drivers window goes up and down properly
Rear driver window goes up and down but backwards
Neither passenger windows work
Only rear door speakers work
Have yet to test power mirrors
Need to take lock and latch from verano driver door and install in cruze so I have a key to it, this has been done to the other 3 doors already

Other things
Need to wire up driver headlight
Need to wire rear lights +camera
Bleed brakes again
Mount rear deck speakers
Finish reassembly of interior
Change park brake cables
And the rest is just cosmetic and reassembling the front end

So this is where the progress slows for a bit as I figure out what the h*ll I did wrong! And I'm waiting on parts anyways.
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I went with just swapping every wire and computer to avoid issues wherever possible, I may have damaged something, neglected a ground, or just gotten something connected wrong.

I shall figure it out in time, hopefully not too long though
Found it!
Passenger windows now working, both backwards. It was a missed ground.
It runs!
It drives!
It stops!
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9 days

Nine days from the cruze shell rolling into the garage to a running driving vehicle.


Most of the remaining work is waiting on parts


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Based on what I've been able to find, this is the only 2.0l swapped 1st gen. And for good reason, the wiring is a nightmare.
anthonysmith93- Harsh

It's possible, just not easy. I've done alot of this stuff before but never at this scale. Unless you can find someone to program the computers to play nice, using the buick harness is the only option and will require quite a bit of modification to fit the cruze. The worst part is just figuring out what is different between the 2 vehicles, and that NONE of the wires to the same things are the same colors and most of the connectors are a different pinout. I think i spent as much time doing wiring things as I did changing over the drivetrain and pulling the dash.
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I'll start with the question of documentation, I didnt take as many pictures as I wanted to. Most of what I did was "little" tweaks, for the doors it was just reshaping the existing buick wire routing and changing the power mirror connectors, for the dash harness it was again mainly reshaping and extending a few wires for the onstar module. Wouldnt have been much help if I had documented the piles of wires, each car and set of options would require slightly different tweaks and you really have to put the harnesses next to each other to make sure they are as close to the same length and shape. The only thing that would be the same for another harness swap car is the wiring for the lights, and I didnt think anyone would really want to see that.

As for putting the buick exhaust on a cruze 1.4, I would go with the 2.0 exhaust if you want the dual tips and from the 2.4 if you just want a bigger diameter pipe. The issue comes from both buick engines having rear exhaust, I will have to look again but I know the buick exhaust has a 90 degree bend to attach to the bottom of the dump pipe. Also, the o2 sensor locations are different, the 2L has them both in the dump pipe (along with the first cat) and the 1.4 has one in the dump and one in the main exhaust.

EDIT: I didn't document much of the drivetrain install as I swapped it and the subframe and suspension and wheels as one unit, meaning it was just "take out big bolts, put big bolts back in" same story on the rear end and fuel system. Actually, the wiring is the main issue, everything else is just put the bolts in where you took them out. Also, the buick exhaust has additional mufflers at the tips, with a heatshield that the cruze only has 1 mount for.
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Now that you mention it...

2014+ Cruze diesel in North America
151 HP, 250 lb-ft

2013+ Verano 2.0
250 HP, 260 lb-ft

And I think it's safe to assume the gas engine is lighter


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thebac, or anyone else with a diesel- does it make boost noises?

The 1.4 doesn't make much at all (mine anyways), but the 2.0 you can hear a pretty good whistle and blow-off sound.

Also, the MT makes this 2.0 a blast to drive! (Around my neighborhood, still not legal yet)
Small update, got a few of the little things taken care of in the last few days.

Park brake cables are in and working
the rear lights and decklid wiring is finalized
repaired brake booster vacuum line fitting
installed T for boost gague if/when I get that far
married the buick shifter and boot to the cruze boot trim and bezel
bled rear brakes AGAIN
replaced busted battery tray from buick with a good one from the junkyard
fixed some of the wire routing
started looking at how to install/rewire cruze start button

Still waiting on some parts, as well as replenishment of funds, and it doesnt help that the remaining tasks involve a lot of work and a lot of thinking.
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It continues to surprise and annoy me how different these sisters are, the rear calipers are the same casting and park brake linkage, but the verano has 1 boss drilled and threaded and the cruze has another, about 270 degrees off from each other. Actually had to drill and tapp the other boss on the verano callipers so I could clock the park brake lever and bracket properly for the cruze cables. Would have been easier to start with an rs or ltz with rear disks so I could avoid this little mess with the park brake and cable. I think I'm doing pretty good on cost so far though, about what I expected, but more than I hoped it would cost. Hope I can get the hood and rear bumper local to avoid the shipping or repaint costs.

taxman- looking at too, deffinately better prices than local places or even ebay if you don't include shipping

EDIT: If you want to see the barely modded callipers, let me know and I'll post pics
1/2" of toe out, a half inch! All I did was change bodies!

Combine that with a pull to the left from a steering wheel position sensor in need of calibration and it explains why it was such a handful.

The car now has properly bled and functional power brakes. Also, I have decided to forego the purchase of a matching hood. I plan to replace the hood on my eco and use it's mangled and straightened hood on 2.0 after giving it a rattle can paint job to "match" the black of 2.0. That way I only have to buy 1 hood and it will help with the resale value of the eco. I am currently working on sourcing the correct rear bumper for the rear sensors to mount, not sure if I care what color as the hood will already be mismatched so what is one more panel at that point.

Anyone have or know anyone that has a set of stock eco springs they are willing to part with?
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A2chris- No, because of the odd shaped A-pillar and door the buick has a different shape to the interior as well, meaning the dash might fit but wouldnt line up with anything else in the interior and all 4 doors are different shapes inside and out.
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