1997 jimmy error codes

1997 GMC JIMMY
190 MILES • 6 CYL • 4WD • AUTOMATIC
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JMGUY
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I just purchased this vehicle this weekend the guy I bought it from says he just had the transmission rebuilt and I see no problem shifting. He did say that the check engine light was on cause of an o2 censor which is true but that is not the only problem.

My question is about the other error codees. there are a couple and then a repeat code for each one. They are Po 155,740,753,758,1860. the first one is the o2 censor. the rest are a couple differant solenoids. I think i might be able to do this myself but if the transmission was just rebuilt shouldn't all of the solenoids be working properly. The guy did say it was shifting into nuetral and he replaced the neutral safety switch does that matter.
May 11, 2011 at 4:23 PM
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DOCFIXIT
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Codes most likely stored before trans rebuild cause with thoes codes trans would be stuck in first gear. Clear codes drive see what resets
May 11, 2011 at 5:09 PM
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JMGUY
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is there a certain amount i should drive and the mechanic cleared the codes but they came back immediately i drove to work the next day and back to the mechanic. Is that enough or do I need to drive more?
May 11, 2011 at 5:19 PM
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DOCFIXIT
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If light on then read codes
May 11, 2011 at 5:26 PM
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CGP375
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It takes to 30 to 50 miles of driving once the codes are cleared. This includes stopping and starting the car before all of the codes are erased from the computer. The ox sensors (bank 1 and bank 2)are fairly easy to remove, they may be seized and require a little Liquid Wrench to remove. If the Liquid Wrench doesn't work wipe it clean and use a torch or heat gun. Be careful of starting a fire under the car. When replacing the two sensors go to your local auto parts dealer and get the correct sensors, they are different, use anti-seize compound on the threads before installing them. The whole repair should take about 1 hour.
Aug 7, 2011 at 3:26 PM