Question about 1995 Chevrolet Lumina

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Hello, I have a 1993 Chevy G-20 Van with a 4.6 V6. It was running fine no hint of a problem then I get in start it up and it starts up and idles ok but upon acceleration it spits and sputters until I really gun it. It then accelerates but you can tell it is not running as usual and it lacks the power it had. I replaced the Cap and rotor but no help. I am sure it is probably one of the many little dodads that have wires going to them on the engine, but WHICH one? Can you help me with this problem? PS money is in REAL short supply so I hesitate to take it to a mechanic that is suffering from SLOW business anyhow and sees me as a cash machine. HELP PLEASE!

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The first and only free things you can do iare to check every single vacuum hose on the engine for cracks and disconnects. Next, unplug and plug back in every connector on every sensor, checking for any corrosion on contacts. also check all fuses. Most larger parts stores will also do computer code tests free. It may also help to replace the fuel filter as there is no easy test for that and it isn't really that expensive. If you find nothing, you will need a chiltons or haynes manual and a decent multi-meter. (both should be under $50)
Follow the test instructions and check all sensors etc.
Unless it turns out to be a strange pervasive problem that defies logic (I think those are factory options on some cars) You should be able to solve this...
Good luck!

Posted on Sep 04, 2009

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