BushmasterSI Posted November 10, 2009 Share Posted November 10, 2009 After my head gasket job, I had a DTC of P1507 which the FSM said was the Idle Air Control Solenoid valve. I removed it and cleaned it thoroughly with electrical contact cleaner and I think I've solved the problem. The valve was gummed up with grease/crud from the crankcase gasses. Before I cleaned it it had a slight resistance when turning it manually and aftwerwards there was no resistance at all. It's been a day since I cleaned it. Hopefully the CEL won't come on anymore. Here are some pics: The IAC valve is in the center under the big black PCV hose. It's got the grey three pin connecter connected to it. I broke the PCV tee by pulling too hard on the line. It came loose and I broke it. I should have used pliars or a screwdriver to pry it off instead of pulling Quote Link to comment Share on other sites More sharing options...
Legacy777 Posted November 10, 2009 Share Posted November 10, 2009 Thanks for the pictures. Those old plastic PCV pieces tend to get brittle and crack....no fun. Quote Link to comment Share on other sites More sharing options...
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