Question about Pontiac Grand Am
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Posted on Jan 02, 2017
On a 2.4, there are no timing marks...There are holes in the cam gears that need to be aligned with corresponding holes in the head.
Though it's not terribly difficult to do, it must be done precisely according to instructions or valves will hit the pistons and destroy the engine. You can find instructions for this procedure in haynes and other vehicle service manuals. (too long to write out here).
Remember...this is an exact install...you cannot just get close!!!
Good luck! Post back if you need further specific instructions with any part of the job.
Posted on Apr 24, 2009
Yes, that model is an interference motor. Most of the pontiac grang am's and grand prix's are. Sorry, I'm sure that was the answer you didn't want to hear.
Posted on May 25, 2009
well, there a few ways to look at this. Yes it has a timing chain/belt. Most people replace them when they break, or if there is another reason to have work done in and around the timing cover, such as a gasket leak or, on your car, the hydraulic tensioner adjusted too tight from the factory.
After research, apparently these cars have had reported problems (ecotech 2.2 L4 motor.), but no help from GM.
Manufacturers suggest to change it at a certain interval/mileage, usually 60k.
Posted on Apr 17, 2010
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