[quote:e1b4109f0f="deandorsey"]It started one day when I left work. I was able to start the engine but whenever I put it into drive or reverse it would die. If I kept the gas peddle down when I put it into drive or reverse it would run but as soon as I came to a stop and lifted my foot off of the gas it would die. No check engine warning light. My thought was the PCV valve so I changed it out. While doing this I discovered that as long as the vacuum hose was disconneted it would run fine, As soon as I connected the vacuum hose the idle would slow and once I put it into drive it would die. I have since discovered that there is a smaller vacuum hose directly under the one that gose to the PCV valve. I am not sure where it goes but I think it partly controls the cruise control. If I disconnect it the I can connect the PCV valve back up and the truck runs fine. It's as if theree is a blockage in the vacuum or it is not producing enough vacuum?[/quote:e1b4109f0f]
Dean,
Sounds like you may have an IAC (idle air control) issue. Heres a quick way to reset it and see if this is the problem. Disconnect both negative and positive battery cables from the battery. Rub the 2 cable ends together for 5-10 seconds. Reconnect the battery cables and turn on the key (don't start it) for 20-30 seconds. turn the key off for 20-30 seconds and then start the truck. You may have to "feather the gas" for a little till the IAC picks up idle control. If the IAC controls the idle normally then you should be all set. If not I'd have to recommend taking it to a trusted shop for diagnosis and repair. hope this helps!
Chris
P.S. by doing this test you basically reset the PCM, idle control and fuel control settings to factory specs.
Dec 11, 2006 at 2:16 PM
