About Ken Surerus Expertise I can answer most questions on most any vehicle with emphasis on Fords, especially vintage Mustangs.
Experience Life experience in all aspects of automotive repair. Self employed since 2001.
Education/Credentials Graduated from Lincoln Technical Institute with high honors, holding a degree in Automotive Technology, my primary area of expertise is in the 1964 1/2-1970 mustangs.
Thanks so much for your help. I found what I believe is the Idle Air Valve. I disconnected the two wire plug and removed the solenoid valve. It was pretty much carboned up. I did not have any carb cleaner so sprayed it with WD40 and shook it up. When I replaced it, the truck started. Loped a bit and settled into a nice low idle. I drove it shopping around for about thirty miles and found the idle to be so quiet, I had to open the driver door and listen. Idle nice and smooth.
When I was replacing the valve, when it was tight, I tapped it lightly with the wrench and a strange howling sound issed from it. I had heard this noice before on occasion and learned that if I 'goosed' the engine it would go away. This time, I turned a small black knob on the outside of the valve and the sound whent away. I did this three or four times.
My question is, what the heck is the black knob and is it now out of adjustment or what?
Ken, it is running fine. Thanks so much for your help.
steve balme
Answer Mr. Balme,
The black nob is to adjust how much air intake comes in. If it starts idling rough again, just turn it a 16th or so until your idle comes back. The carbon build up could be because you are burning a little too rich. Glad that everything worked out for you. Hope this helps and if you need further assistance, please do not hesitate to contact me again. Good luck.
