V10 Miss

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Jan 5, 2003 | 10:51 AM

houseofcharm

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V10 Miss

[updated:LAST EDITED ON 05-Jan-03 AT 11:56 AM (EST)]Oh happy new year but not with my motor. My 98 w/55k just developed a wobble/miss this week that flattens out with higher revs. Plugs hole? Burnt valve? It seemed to get worse over a few days-coupla hundred miles. Anyone else?:-X23

Jan 5, 2003 | 02:12 PM

Monsta

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V10 Miss

Pull the plugs and "read" 'em would be my suggestion. But darn...that's a lot of plugs ain't it! :7

Jan 5, 2003 | 03:27 PM

houseofcharm

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I think I'll get it on an analyzer 1st and see aht the computer thinks. Plugs'll come next. Thanks.

Jan 5, 2003 | 04:57 PM

NoMo

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Fuel filter is where I would start.

Jan 5, 2003 | 08:42 PM

4x4x4x4

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V10 Miss

If you decide to pull the plugs,a compression check will confirm or eliminate an engine miss due to compression issues.
It is best to do it on a warm engine with the throttle wide open.The gauge only needs to be screwed in just past hand tight.Crank the engine about seven revolutions.The cylinder pressures should be within 20% of each other.In actuality though,if you have a miss due to a "dead" cylinder,it will have a significantly lower reading than the rest of them.
BTW,don't overtorque the spark plugs when you reinstall them.

Let us know what you find out.

Jan 13, 2003 | 11:00 AM

houseofcharm

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Thanks again. My mech sez that the computer reads 2 misfiring cyl's which is good news that it's electrical and not valvetrain.

I need to find out the firing order and which bank is cyl #1, if anyone knows...