Question about 1995 Chevrolet Blazer

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Slight miss in engine, hard shift from 1st to 2nd long 2nd gear

We just bought this 95 blazer with a 4.3 and put a new fuel pump, fuel filter on it. it has a slight miss in the engine and a code PO420 when the engine light came on. The transmission seems to shift hard from first to second gear and the rpm go to 2500 before it shifts from 2nd to 3rd. 3rd and overdrive seem to shift fine and there seems to be no slipping in the transmission.

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  • Anonymous Mar 12, 2014

    2002 grand am shifts hard from 1st to 2nd gear when car is warm

  • Anonymous Mar 14, 2014

    won't pull in 2nd or3 gear after a certain RPM is reached.

  • Anonymous Mar 27, 2014

    the trans will shift sometimes if you let the gas off after you get the rpm,s high

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Check both O2 sensor(s) and catalytic coverter.. P0420 means catalyst below threshold. Also check the sensor at the transmission and solenoid.

Posted on Feb 06, 2009

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Here is your complete answer>>
http://www.aa1car.com/library/p0420_dtc.htm

any way Thanks for using FixYa.

Posted on Feb 06, 2009

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SOURCE: 96 chevy blazer 3rd gear and overdrive slipping

i got a 1996 chev. blazer s-s10 4.3 engine 4x4.problem i got is i got 1st 2nd & overdrive & reverse but no 3rd gear what should i do

Posted on Jan 19, 2010

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