williamj95
Active Member
At the urging of some other members, I'm starting this thread to document the building of my Goblin. I just bought my donor a month or so ago and I'm just starting the process. My donor is a 2009 LS with the 2.2L Ecotec and auto trans with 117k miles. The first thing I decided I wanted to do was to get the motor humming before I started the stripping process. To that end, I decided to do a basic tune up - oil change, air filter change, spark plugs. For everyone on here who already has their donor, they probably already know this, but for anyone looking to make the plunge their is a tool you will need just to change the oil. The oil filter sits in a housing on the side of the motor (see pic). To get this cap off requires a 32 mm shallow well socket, which isn't a socket the average home owner has in their tool box. I bought one off Amazon for $8 and once you have that socket and a long extension its easy enough to unscrew that cap and replace the filter.
With that done the next step was to figure out why the engine light was on. I plugged in my ODBII reader and got a P0171 code. That code can mean a lot of things but normally it means a vacuum leak. It was at that point that I noticed that the car was idling a little rough which is a result of a vacuum leak making the engine run lean. In order to try and find the vacuum leak I decided to pull the big black box off the top front of the motor to get a better view of everything. (see pic)
This black box, which GM calls the outlet duct, was easy enough to get off - couple of hose claims and a tension clamp. But as soon as I got it off I discovered that the car won't run with this removed. It starts and immediately stalls out. With it off though I discovered that the underside around the large hose on the bottom was broken (see pic).
My donor had been in a front end collision. The hood was folded and the front firewall was dented in. The engine appeared undamaged looking at it, but I realized this outlet duct must have taken an impact which pushed it down and broke the connection between this hose and the housing. With the connection between the hose and the housing broken, getting it back on was a bear but finally I got it back on. I started the car back up. It ran fine with a slightly rough idle once again. I sprayed some carb and choke cleaner up under the outlet duct and the engine started purring like a kitten for ten seconds or so and then back to rough idle. I inadvertently found the source of my vacuum leak. This outlet duct cost $140 on the GM part store (item number 25793361 encase anyone needs it) by the time it gets shipped to you. But I got the new one, replaced it, cleared the codes with the ODBII reader and let the car run for twenty minutes. No new codes appeared - success!
So at this point, I think I'm ready for video 1 and I can start stripping this baby. Until next time.
With that done the next step was to figure out why the engine light was on. I plugged in my ODBII reader and got a P0171 code. That code can mean a lot of things but normally it means a vacuum leak. It was at that point that I noticed that the car was idling a little rough which is a result of a vacuum leak making the engine run lean. In order to try and find the vacuum leak I decided to pull the big black box off the top front of the motor to get a better view of everything. (see pic)
This black box, which GM calls the outlet duct, was easy enough to get off - couple of hose claims and a tension clamp. But as soon as I got it off I discovered that the car won't run with this removed. It starts and immediately stalls out. With it off though I discovered that the underside around the large hose on the bottom was broken (see pic).
My donor had been in a front end collision. The hood was folded and the front firewall was dented in. The engine appeared undamaged looking at it, but I realized this outlet duct must have taken an impact which pushed it down and broke the connection between this hose and the housing. With the connection between the hose and the housing broken, getting it back on was a bear but finally I got it back on. I started the car back up. It ran fine with a slightly rough idle once again. I sprayed some carb and choke cleaner up under the outlet duct and the engine started purring like a kitten for ten seconds or so and then back to rough idle. I inadvertently found the source of my vacuum leak. This outlet duct cost $140 on the GM part store (item number 25793361 encase anyone needs it) by the time it gets shipped to you. But I got the new one, replaced it, cleared the codes with the ODBII reader and let the car run for twenty minutes. No new codes appeared - success!
So at this point, I think I'm ready for video 1 and I can start stripping this baby. Until next time.
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