LT1-LT4 Modifications 1993-97 Gen II Small Block V8

voltage drop???

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Old 07-19-2010, 07:40 PM
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My car has a problem starting. it takes like 3 cranks to start. on the starting crank, the starter sounds like its spinning faster. Also, at idle after it has ran for a lil while, it will stumble and misfire. During this the voltmeter bounces with the tach. It started doing this randomly one day and im not sure what it could be any ideas would be great. btw the opti, coil, plugs, and wires are new within the last 5k miles, the plugs arent fouled, and the fuel pump and filter are also new.
Old 07-19-2010, 08:57 PM
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Originally Posted by dirtynorth
My car has a problem starting. it takes like 3 cranks to start. on the starting crank, the starter sounds like its spinning faster. Also, at idle after it has ran for a lil while, it will stumble and misfire. During this the voltmeter bounces with the tach. It started doing this randomly one day and im not sure what it could be any ideas would be great. btw the opti, coil, plugs, and wires are new within the last 5k miles, the plugs arent fouled, and the fuel pump and filter are also new.
Just because things are new doesnt mean that there working properly. Check everything through shbox's walk throughs. also check your fuel pressure. it might be to low
Old 07-22-2010, 11:40 PM
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fuel pressure is at 40 psi on prime, 45 while cranking, and 40 at idle. and it holds. ive been on shboxs site. could this be symptoms of a bad crankshaft position sensor?



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