Questions tagged [ecotec]

General Motors trademark referring to a series of emissions technologies that were implemented into a range of engines produced for GM vehicles. These are both gasoline (petrol) and diesel engines. ECOTEC equates to "Emissions Control Optimization TEChnology".

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2.2 ecotec on 2008 Cobalt - Timing chain tensioner will not come out of head

Asked this on a message board, no luck. Got an odd one for you here. My mom's Cobalt started having the notorious ticking around 100k. Went and installed a new timing chain tensioner. I misread the ...
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Running rough in the cold 03 cavalier

I have a 2003 cavalier with the 2.2L ecotec. In the cold weather it runs terribly and doesn't get better even when engine has been warmed up. The engine will shudder when I give it gas from a low rpm ...
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Any stable alternatives for Z22YH (GM Ecotec GDI engine) high pressure fuel pump?

the main problem with these pumps (part number 815049) are: 1. Expensive: about 400€ for a new one, very hard to find a working old one. 2. Membranes: the membranes used in these pumps get broken ...
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engine mount bolt torque (Ecotec)

('07 Cobalt LS, 2.2 L) Re the passenger side engine mounts, ... The Alldata manual (AIUI, from Helm) says Tighten the engine mount to body nuts to 66 N.m (49 lb ft). Tighten the engine mount to ...
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Water pump mounting bolt feels wrong. (Ecotec)

('07 Cobalt LS, vanilla 2.2, 70K mile) Putting the timing chain cover back on. [1] One bolt goes through the cover into the water pump. Initially, it threads OK (not cross-threaded); But, when I get ...