Question about Chevrolet 1500

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Got a 1999 chevy truck with 5.7 ltv8. was driving on highway when check engine light started flashing. drove about 40 more miles to get to were i was going.as i got off the exit the truck was stumblin and i had to keep foot on brake and gas to keep runnin till i got home . computer code came up p0304.i did notice a bad smell and exhaust was very hot . i know there are other reasons for code but do u think its the catalyst system.

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The code is a cylinder 4 misfire but not likely caused by a catalyst issue. The description indicates that cyl 4 is not igniting the gas and when the exaust valve opens is pushing raw fuel into the exaust. This could damage the catalyst but is unlikely the catalyst caused it.

Posted on Sep 07, 2010

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Your good problem description has help alot - your vehicle has exhibited the classic symptoms of a failure of ther kick-down linkage in transmission - the vehicle gets up to highway speed fine, then as the transmission tries to kick down from 2nd gear to 1st, the kick-down linkage is too loose and fails to drop tranny into 1st gear, causing engine to stumble/stall. Fix: adjust the transmission kick-down linkage. DIY cost: $0

Posted on Sep 07, 2010

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    Archaeology Sep 21, 2010

    Jsmes1027 got it. - I was thinking of the torque converter lock-up soleniod anyway.

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