04-09 engine interchange (thermostat housing cracked - engine overheated)

[petrified.rabbit]

for that much air, it has to be coming from the vacuum booster on the brakes. Unless the pcv or egr were not hooked up.

[rocky49]

for that much air, it has to be coming from the vacuum booster on the brakes. Unless the pcv or egr were not hooked up.

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The extra air was coming from a leaky injector according to the GM dealer. 3 Hours of looking to find the problem. However now there are 3 other problems now. The old fix one, break 3!.

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1. They say the engine computer is not communicating with the car|?? but the check engine light is on.

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2. There is now a large oil leak on the bottom of the engine on the passenger side, but they can't seem to understand why. The leak seems to be "ON related", when off it is not leaking.

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3 The engine is making a strange cyclical sound...

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[rocky49]

This is a further post to identify some of the answers to the problems I posted earlier today.

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Problem #1 no resolution as of yet.

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Problem #2 The oil leak is presumed to be the result of a leaking intake camshaft gasket. The GM dealers wants 5.7 hours to change the cam gasket.

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Problem #3 the strange cyclical sound is a result of the dealer tech installing the harmonic balancer incorrectly when rechecking the timing cock-eyed you got to put the balancer hole in the keyway before tightening it down.

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This engine now runs smoothly while leaking oil faster than the Exxon Valdez or an Enbridge pipeline! Will post if a new intake gasket solves the oil leak. It only leaks oil while running.

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It is Halloween and the white zombie gets another chance at life. Rocky

[joehatton]

I just bought a mint condition 2005 Aveo LT last night with milky oil.. The previous owner already replaced the head gasket, but the cylinders are still getting water pumped in, and the coolant surge tank has bubbles.. I am thinking it probably has a cracked block..

Two questions:
1. Am I missing something? (I am a competent mechanic, but very new to the Aveo)
2. Can I swap in an engine from a 2009 Aveo?

Based on this thread it seems like the general consensus is the only difference is the fuel rail, injectors and sensors between the 2005-2009 model years..
I see a few people saying the CASE (crankshaft variation relearn) resolved any differences between the engines..
All of this assuming I work out any "real" CEL errors that pop up such as O2 sensors or disconnected wiring etc.

Thanks!

[rocky49]

This is a further post to identify some of the answers to the problems I posted earlier today.

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Problem #1 no resolution as of yet.

---

Problem #2 The oil leak is presumed to be the result of a leaking intake camshaft gasket. The GM dealers wants 5.7 hours to change the cam gasket.

---

Problem #3 the strange cyclical sound is a result of the dealer tech installing the harmonic balancer incorrectly when rechecking the timing cock-eyed you got to put the balancer hole in the keyway before tightening it down.

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This engine now runs smoothly while leaking oil faster than the Exxon Valdez or an Enbridge pipeline! Will post if a new intake gasket solves the oil leak. It only leaks oil while running.

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It is Halloween and the white zombie gets another chance at life. Rocky

Well I went to NAPA and they actually had a new camshaft oil seal in stock. Replaced it and the problem with leaking oil is gone. It is 3 months later I have another 3,000 km on it and the white zombie trucks on through the arctic snows here in Northern Canada. Go SNOW ZOMIBIE!!!