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Rough idle and fan runs wild after water outlet replaced!

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Hi everyone. I replaced my water outlet valve a week ago and afterwards I'm getting these codes and a cooling fan running high speed. Codes are as follows.....PO 134, PO 135, PO237, AND PO 097. I messed up and changed valve w/o disconnecting negative cable but have sense disconnected and discharged any energy before reconnecting. What an I missing still???? Thank you!
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· The Nuclear Option
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5,867 Posts
Do you think using a spray contact cleaner on the connections would be any help? I just can't believe that 4 different sensors all went bad after I did the install. 2 O2 sensors, turbo pressure, and another I forget at the moment.
More than likely the sensors aren't your issue if you've put four of them in. If the ECM is getting a realistic reading from the sensor, the connection isn't the issue either. Do you have the ability to access sensor data?
 

· The Nuclear Option
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5,867 Posts
Unfortunately, I do not have that ability. I also can't seem to find anyone else who has experienced this issue. I may have to suck it up and pay the dealership pricing. (Insert stomach churning noise here). Ugh
There are 3 different ways to approach automotive troubleshooting depending on the level of investment you willing to put in.

1. You can chase parts, where you use, "semi educated guesses," to replace parts until you replace the part or parts that are causing the problem. (Can get expensive, frustrating, and time consuming)

2. You can buy tools and diagnostic equipment and learn how to use them to figure out which part or parts are causing the problem. (IS expensive, time consuming, can be frustrating, but is extremely rewarding)

3. You can pay a trained technician, who already has the diagnostic equipment and the knowledge to use them, to diagnose the problem for you. (Most of the time, this is the easiest route)

This being said, I use option #2 and sometimes even use option #3 depending on my level of frustration, as I am not a professional technician.
 

· The Nuclear Option
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5,867 Posts
Sorry. Lol. I am sad to report no change at all. I did everything as directed. This is incredibly frustrating. I have an appointment with my local chevy garage this Friday. I don't know what else to do. Ugh!
There's no shame in asking for help from someone more knowledgeable than you. I do it all the time. :LOL:
 
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