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Old 05-20-2009, 04:37   #1 (permalink)
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Exclamation 1997 Taurus- Has Fuel,and spark BUT NO STArt

Hello Forum. I thank you in advance for any knowledge and tips received. working on a 1997 taurus 3.0 OHV. Cranks O.K., but no start. Have spark on all cylinders but one. (no spark from coil that cylinder) REPLACED COIL SAME ISSUE. Have 40psi at shrader valve on fuel rail. BUT PRESSURE STILL PRESENT WHEN KEY OFF after releasing pressure (20psi and building). disconnected battery cables (Both) pressure still present and building with key off and NO CURRENT FLOW. Sprayed starter fluid in intake, still no sign of starting.

Prior to No Start condition, engine exhibited a very rough idle and strong gas fume smell. also to note; changed fuel filter (it was clogged bad), had only 30psi prior to replacing. 40psi after, but constant fuel pressure as noted above.

Im stuck, please HELP!!!!!!!!!!!
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Old 05-21-2009, 06:43   #2 (permalink)
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Re: 1997 Taurus- Has Fuel,and spark BUT NO STArt

have you done compression test..?? I would start with that,.. your gasket may be going.. when you do,.. write down each cylinder's test results and post it,.. see if we can help from there.. I know,... it may be the gasket..
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Old 05-26-2009, 17:50   #3 (permalink)
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Re: 1997 Taurus- Has Fuel,and spark BUT NO STArt

I concur, compression should be within the 100-135psi range (min-max). Anything down around the 90psi or lower can mean head gasket, or piston rings. Do you notice any colour in the exhaust when you attempt to start it? The gas fume smell can be related to engine flooding, as you have no spark, raw fuel vapour is being expelled through the exhaust.
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