New Idle Air Control (IAC) Valve Issues
last friday my truck would die when I would put it in park, not everytime but very close to. I wasn't sure what it was so I went on here and everybody said it was probably the IAC, so I went to Autozone and got a Duralast IAC that came w/ a gasket. I installed it and it worked great, the truck would no longer go under 500 rpms when put into park or nuetral at all anymore. So I figured I would return it and save $3 and get a motorcraft IAC from rockauto.com. I put that in and it doesn't run as good. I mean the truck doesn't die but it comes relatively close w/ the motorcraft IAC which is strange because I thought I was doing the truck a service by putting a motorcraft part on it. the motorcraft IAC did not come with a gasket but I kept the one that I got from auto zone.... so I reinstalled it the motorcraft IAC w/ the gasket.... runs a little better but not nearly as good as the duralast IAC from Autozone. Did I get a no good Motorcraft IAC or are the duralast IAC better quality, or was it just a coincidence that the IAC from autozone was allow the truck to run perfect and there is really something else wrong w/ the truck? i'm tempted to return the motorcraft IAC and re purchase the Duralast IAC. Any Suggestions would be great!
2003 Ford Ranger XLT 4.0L Supercab, Automatic, Candy Apple Red, 16 Inch Rims