1997 Blazer P0175

[Doug77]

Cleaned the MAF last night. It didn't look bad at all. Put it back together, got in, drove it back to the garage. A mile away from my house the check engine light went out. I don't think it had anything to do with what I did. It has been a random thing. The mechanic had the truck all day and asked to keep it tomorrow also. I asked him about the ignition switch and he is looking into it. He doesn't believe it is the ignition switch. I am giving him tomorrow yet to figure it out since I paid him $600 bucks for the leaking injector and the O2 sensors. He did say that they performed all the diagnostics on it, and everything looks great! Also, it passed emissions testing on its own. In PA we have emissions testing when you have your inspection done. It passed both. But, the light keeps coming on. BlazerLt, how do I replace the ignition switch? You mind giving me a quick overview?

[BlazerLT]

Originally Posted by Doug77

Cleaned the MAF last night. It didn't look bad at all. Put it back together, got in, drove it back to the garage. A mile away from my house the check engine light went out. I don't think it had anything to do with what I did. It has been a random thing. The mechanic had the truck all day and asked to keep it tomorrow also. I asked him about the ignition switch and he is looking into it. He doesn't believe it is the ignition switch. I am giving him tomorrow yet to figure it out since I paid him $600 bucks for the leaking injector and the O2 sensors. He did say that they performed all the diagnostics on it, and everything looks great! Also, it passed emissions testing on its own. In PA we have emissions testing when you have your inspection done. It passed both. But, the light keeps coming on. BlazerLt, how do I replace the ignition switch? You mind giving me a quick overview?

Do a search for ignition switch, someone already posted a guide.