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So this same 02 3.4 that I have been having trouble with for awhile, replaced the FPR a few times, but now it will start and run a few seconds and stumble then die, sometimes doesn't start, but just sputters. I noticed that with the key on the IAC sits there and makes a loud clicking noise, I know its the IAC because I can feel it and it stops when I unplug it. Resistance check shows 58 ohms across the bottom 2 terminals and 55 across the top 2. Manual didn't say what it should be, only that they should be close to each other.
I don't have a lot of experience with IAC valves, the guy at the parts store said he believes it can cause these symptoms, and it should not be clicking. And I believe him to be right on both counts. But, how do I know if this is the problem? I checked the fuel pump circuit, everything is good there, and it spits gas out when the key is turned on and when cranking. There are no codes, and the I/M monitors are all reset even though I did not reset the computer or disconnect the battery. Could the ECM be bad?
I would really appreciate as much help as quickly as anyone can manage, I need to get this thing fixed.
I don't have a lot of experience with IAC valves, the guy at the parts store said he believes it can cause these symptoms, and it should not be clicking. And I believe him to be right on both counts. But, how do I know if this is the problem? I checked the fuel pump circuit, everything is good there, and it spits gas out when the key is turned on and when cranking. There are no codes, and the I/M monitors are all reset even though I did not reset the computer or disconnect the battery. Could the ECM be bad?
I would really appreciate as much help as quickly as anyone can manage, I need to get this thing fixed.