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99 300M won't start

Old 08-01-2017, 10:34 PM
Junior Member
Thread Starter
Join Date: Aug 2017
Posts: 3
Default 99 300M won't start

My 1999 300M won't start. Turn over good and I can hear the fuel pump come on. But it doesn't fire. Maybe timing belt broke? It was leaking antifreeze ocassionally recently and I'm wondering if the antifreeze weakened the belt and caused it to break. Where or what would I check first?
Old 08-02-2017, 07:12 AM
Senior Member
Join Date: Jul 2017
Location: Western NY
Posts: 811

For a '99 model year and probably over 100K, with a leaking water pump. Yes it is likely the timing belt broke. There should be a plastic cover over the TB area that can be easily removed to see if the belt is in one piece or not. Hopefully it is OK as these motors are an interference motor and will damage valves and pistons if the TB breaks or is out of "time".
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