Question about 1998 Pontiac Grand Prix

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I own a 1998 Grand Prix GTP that will crank over but not start.I checked to see if the car has a spark in the plugs,thats fine.I pulled off the cover above the fuel pump in the trunk area to expose the electrical connections.I checked the voltage to the pump and I am only getting about 6 volts at the connection.What else can I check to fix my problem. Vince

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Check your Fuel pressure, being the car is fuel injected and a 98, odds are it is Sequencial Injection. If the fuel pump doesnt pump the proper amount of pressure the fuel pressure regulator wont give the engine gas.

Posted on Sep 27, 2009

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Anyone know the spark plug gap on a 1998 Grand Prix gtp? Is it .060?


Yes. On a stock 98 no less than .055" nor greater than .060", is acceptable.

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i think it's time to replace the battery. have you tried to crank it after someone gave you a jump? if it starts than replace the battery. there's no real way I can tell you how to check the charging system unless the car is running.

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