GS - 2nd Gen (1998-2005) Discussion about the second generation GS300, GS400 and GS430 (1998 - 2005)

Rough start after new timing belt

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Old 04-11-07, 08:36 PM
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JMasters
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Default Rough start after new timing belt

I just replaced my timing belt and now it starts really rough. It hesitates a little then cranks up. It took us several hours to get it to start. A friend and myself replaced the belt. We tried lining up the marks every which way and finally got the right combination. I am just hoping nothing is messed up, valves or whatever else could have been damaged. Does anyone have any idea what might be giving it a rough start? Could it be a bad spark plug? Any ideas? please let me know..

--JMasters
Old 04-11-07, 08:44 PM
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salimshah
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Look under the maintenance forum. We had a long thread 4~6 weeks back on a DIY belt replacement which went bad.

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Old 04-11-07, 10:24 PM
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ElitistK
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Originally Posted by JMasters
I just replaced my timing belt and now it starts really rough. It hesitates a little then cranks up. It took us several hours to get it to start. A friend and myself replaced the belt. We tried lining up the marks every which way and finally got the right combination. I am just hoping nothing is messed up, valves or whatever else could have been damaged. Does anyone have any idea what might be giving it a rough start? Could it be a bad spark plug? Any ideas? please let me know..

--JMasters
Does your engine have vvti? if yes, it is most likely an interference engine, which you might have damaged the valves/cylinder walls/pistons upon contact.
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