Question about 1998 Buick Regal

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98 buick regal tries to crank but floods the plugs what is the problem

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Check if there is a good spark to the plugs and the air filter is not clogged . if the plugs are not firing the injectors will still spray fuel and wet the plugs. if the ignition spark is ok the injectors may be leaking, causing the engine to flood.

Posted on Mar 28, 2015

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  • Buick Master
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Yup. Fuel supply problem. Could be a number of things. Check if the injectors are clicking when you crank. no click, no power to the injectors, problem with sensors data to the Ecu. If click, that part is not the problem. More likely Fuel pressure regulator is bad, not enough pressure, or fuel pump relay which controls the fuel pump. So either may be bad or connections are bad or wires cut. Fuel filter may be clogged. To test th fuel pump, you can jump from the battery positive to pump terminal for a short time to verify the pump is good. so then connections at pump, or from the fuel pump relay or it's connections to the ECU. Most disastrous may be the Ecu itself. Other sensors to the Ecu could contribute, but usually with code problems including sensors it goes into a "limp home" mode. overriding bad sensor inputs. If somehow you can get the error codes read at auto parts store, that may give you more clues than I can guess at. Good luck, hope this helps you out. I gave this answer to another query, but most of it applies in the opposite way, you are getting too much fuel (we used to call it flooding)

Posted on Mar 28, 2015

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