Rough Start

[clark]

Hi, guys.

I'm experiencing 'odd engine rev' when it comes to start recently.

It happens about once a week, no matter the engine is cold or hot.

My battery and spark plugs are healthy though.

Can anybody figure out what it is?

http://www.youtube.com/watch?feature=player_embedded&v=rXdU5T7owBk

[HummerJim]

Sounds similar to my old H3 when I got a load of bad gas in Canada on vacation that had water in it. When we dropped the fuel line and about a measuring cup of water came out of the tank. It was most pronounced at start-up and idle but stumlbed somewaht on steep grades too. You might try some Heat or gas additive, but my guess is water.