|01-14-2013 04:28 PM|
Because it runs fine, then won't restart, I am inclined to believe that is an IACV problem. The IACV is simply sticking once in a while- probably due to the cold weather and crud buildup. I would clean the IAC.
There is no reason not to investigate the PCV, check it, and repair it as needed. This is a common problem causer, and should not be overlooked any time you're having problems with the car. It will help you to know this one, and know it is repaired. It is not expensive to repair if you purchase 90 deg plastic elbows and line to build your own. A re-designed hose from Ford is available for $20.
|01-14-2013 04:16 PM|
I gave the hoses a cursory check, The rubber connectors seemed to be tight, pliable and intact. Some hoses had chafing marks and one of them, one of the small diameter hard ones going from the manifold to the canister, was worn almost through the casing.
I made temporary repairs to the chafed lines and will see if that solves the problem. But, because of the intermittent nature of this issue it may be a long time b4 it happens again.
There are no pictures of the PVC hose in my manual. does anyone know where I find one.
|01-09-2013 11:41 PM|
hi and welcome to the forum.
another thing to check is the IAC valve.
stalling is a classic Focus failure mode on older vehicles and a topic of endless discussion here. Plug words like "IAC", "PCV", and "stall" in the search box to find tips.
|01-09-2013 11:35 PM|
Usually a vacuum leak of some sort. Hoses tend to be more pliable when warm and a split or perished hose may leak under only those specific conditions. Check for the common PCV hose failure problem and all the rubberr fittings that attach to the vacuum take-offs on the back of the intake manifold (just below the throttle body between the manifold and firewall.)
Vacuum leaks don't usually throw codes unless they affect the AF mixture enough to cause a lean running condition.
|01-09-2013 03:17 AM|
2000 zx3 won't idle, sometimes
My daughters 2000 ZX3 runs fine most of the time. But occasionally, after being driven for a while and shut off and restarted it will not idle and die. You can keep it running by applying a little pressure to the gas peddle. If you wait about 45 min to an hour usually it will run normally again.
It seems totally random. sometimes it will not do it for weeks or months (the longer times between events are in the winter).
My scanner can only read codes, it can't read things like fuel pressure and real time data. No Codes are set.