Sometime when i start the car, it tends to idle up to 2 grand or between shifts when the clutch is in, the idle air control valve an a vaccum line has been replaced to fix the problem didnt fix...need some help thanks,
mine only did it because I had a bad fuel pump and It would only do it at the end of warm up mode. then changed the fuel pump to a 255 walbro and now I didn't have to worry but if it does that when you first start up then its the idle air control valve a vaccum leak and the egr valve or the tps also try to pull out as many codes out as possible
Make a new iac retaining gasket with felpro 3157 gasket paper. Leave the hole on the air intake side 5/8 but on the engine side make it 5/16 this has fixed 2 of my stangs
1 - 9 of 9 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
A forum community dedicated to all Ford Mustang owners and enthusiasts. Come join the discussion about performance, racing, builds, modifications, troubleshooting, maintenance, and more!