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#1
12-10-2003, 05:17 PM
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1995 4.3 Blazer 4WD Please help!
My Blazer will start sometimes but will not run but for a few seconds. If it does so happen to stay running, it will miss at low idle and run steadily at high idle. Dealer said it was losing spark. I have replaced the Ignition Module, Fuel filter, Coolant temp. sensor, coil, and plug wires. The pickup coil, MAP sensor,and the fuel pressure tested fine. A new fuel pump assembly was installed not even a year ago. Check engine light is not on. Crankshaft Position Sensor was not factory insalled on this particular model. If anyone has any ideas on how to fix, please let me know. Thank you
P.S. I am glad I found this site. 
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#2
12-12-2003, 09:13 PM
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Sounds like you replaced most of the potential spark producing parts. I had a similar problem with my 96 and it turned out to be bad fuel injectors. Might want to have them checked out.
Good luck.
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