1996 CHEVROLET VAN
80,000 MILES
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my 1 ton 96 chevy van has 95 and 96 parts(body is 95) the computer is what i guess is pre-96 anyway the trouble code is 7 flashes then 4,code 74. is my computer bad?thanks
Jan 22, 2013 at 5:15 PM
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HMAC300
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that code is a transmission input speed error, it could be electrical or similar have a trans guy look at it. make sure fluid is full
Jan 22, 2013 at 6:37 PM