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Discussion Starter · #1 ·
Hi... new here and hoping to get some direction. I have a 2011 Cruze with around 95000 kms on it. Maybe a bit more but haven't hit 100 000 yet.

Twice in the 5 yrs I've had this car, the engine light has come on. The first time (about 6 months ago) it turned out to be the thermostat (fan was running all the time even on cold start). Was under warranty so work was done by the dealer. Now the engine light has come on again... no warranty now. I took it to the dealer for diagnostic and was told the problem was my cooling system (P00B7). Note - I had no issues with the car whatsoever at this point... I took it in to check why the light was on. Told me they would flush the system and change the sensor and I went ahead with the work. Now, ever since, I have no heat in my car. Initially, when I picked it up, I heard what sounded like fluid running through pipes (like if you stood in your basement with drainage pipes overhead... that same sound). The sound was quite loud and happened quite a bit right after I picked it up and then periodically after. Then my temp gauge started to fluctuate between 1/4 and 1/2 (normally my car sits just under 1/2) and only slightly warm air blowing out of the heaters (and it's been about -10 C so heat is kinda essential). Was told likely air and so I bled the lines last night. Didn't hear the drainage noise today... and temp gauge is not fluctuating anymore... holding steady at just under 1/2... but still no heat. Also, I have not heard the engine fan come on at all so it's not because the fan is running too much. Coolant level is fine (they just flushed it and I have checked levels both hot and cold and it's fine). So... any ideas of what the issue might be? Anyone else have a similar experience? The dealer can't look at it until next week, earliest. And at $130/hour this is getting expensive. If it turns out to be a result of the work they just did then it would be no charge but if it isn't... Then I'm looking at another big bill so I'm looking for ideas of what to look at next and maybe it's something I can do myself.
 

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Discussion Starter · #6 ·
Thanks ChevyGuy. The car has now been burped many times... still air in the lines. Fluid levels are fine. It's been in the shop for two days now and they keep thinking they've gotten the air out and then... nope. Checked the water pump, thermostat, cap... all is fine. Stumped.
 

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Discussion Starter · #8 ·
Thanks Carbon02. I think the garage is changing the cap and they did tell me they are borrowing one of those vacuum tools and trying that. They keep bleeding it and there is still air in it :/
 
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